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O&G 1-96 Aug 09:O&G 1-72 April 09 15/12/2009 10:47 Page 25

OIL & GAS PRODUCT REVIEW

OTC HOUSTON EDITION • MAY 2010

OIL & GASPRODUCT REVIEWOIL & GAS

PRODUCT REVIEW20

10

OTC H

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SHOW

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www.johncrane.com

John Crane is a global leader in deliveringworld-class products, services and support to customers in a wide range of industrialsectors. We are also committed to achievingthe highest levels of customer satisfaction inthe process.

Our success is backed by our emphasis on customersupport. We work in partnership with our customersto provide bespoke solutions that satisfy individualrequirements, supported by our global network ofservice facilities.

• Dedicated global service engineering team

• 24/7/365 emergency response team

• Specialist asset management services

• Present in 53 countries with over 200 sales and service facilities

Mechanical Seals • Fluid Control Systems • Power Transmission Couplings Filtration Systems • Advanced Hydrodynamic Bearings

A unique combination ofproducts and services

Visit us at O

NS 2010

Stand G 705

16446 Generic Ad resize.qxd:Layout 1 13/04/2010 17:32 Page 1

OTC_John_Crane.indd 52 18/04/2010 22:18

WELCOMEDesigned to provide direct marketing

for the offshore industry, the Oil &

Gas Product Review magazine has

continued to keep abreast of the

latest developments through

all levels of technology involved in

this ever-changing market.

With our presence at the important

trade shows through the industry

calendar and with the publication

being released quarterly, we are now

at the forefront of Offshore marketing.

“Our philosophy is to provide

companies with the chance to let

their relevant industries know about

their products and services in their

own words. We do not use journalists

but rather publish editorials and

press-releases and in doing so,

can provide a less expensive

alternative for the advertiser. With our

circulations being controlled to the

senior buyers and specifi ers (named

individuals), we can ensure that

companies’ details are seen by the

right decision-makers”

DIRECTOR OF SALES DUNCAN SMITH

3

Director of SalesDuncan Smith

Tel: +44 (0)1634 301 418

ProductionMartin Anastasi

Tel: +44 (0)1634 301 418

International SalesDavid Lowe

Tel: +44 (0)1634 310 418

Design and pre-pressVortex Creative Ltd

+44 (0)1322 319 344www.v-creative.co.uk

Telephone: +44 (0)1634 301 418Fax: +44 (0)1634 301 428

Web: www.21stcenturyenergy.co.ukEmail: sales@21stcenturyenrgy.co.uk

PO Box 738, Rainham, Kent ME8 9NR

The Oil & Gas Product Review and other titles are produced by 21st Century Energy Media Ltd.Published quarterly and for major events throughout the year.

CONTENTS2 John Crane4 NOF Energy6 Strainstall8 RAE Systems9 Caledyne10 Doosan Babcock11 CMP Products11 Werma12 BS&B14 Nautic Steels15 Crowcon16 Flexitallic18 Langley Alloys19 Converteam20 HCL Fasteners22 Belleville Springs24 Koso Kent Introl26 Hawke International28 Baseefa29 A&P Group30 Bedford Opto Technology31 R&M Electrical

32 Benoil34 Dynamic Ceramic34 Bowers Metrology35 Wessington36 Cutting Underwater37 Inspectahire38 Sonar Equipment40 Ross Offshore42 OSEA Singapore44 Seatrax46 Advanced Components46 Cengar46 Rotafl ow47 Valeport48 Concateno Medscreen49 Darchem50 Flametec51 Deep Casing Tools52 Neptune53 Lee Products54 Completion Products55 SeaOcean Ropes

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NOF Energy – creating opportunities for UK industry in global markets

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NOF ENErgy, thE lEadiNg UK bUsiNEss sUppOrt OrgaNisatiON for the oil, gas, nuclear and offshore wind sectors, will be championing the skills and expertise of UK industry at OTC 2010.

Exhibiting alongside NOF Energy at OTC in Houston, Texas are 11 UK companies who all have extensive experience in the global oil & gas industry.

The businesses represented provide a diverse range of products and services including Industrial Brushware, Brabeum, Microbac and Wessington Cryogenics. Also taking part at OTC on the NOF Energy stand will be PD Ports, Linear Composites, Suretank, Precision Polymer Engineering, Wilton Group, UBH International and Unasys.

“The UK supply chain has a strong global reputation and will be well-represented by NOF Energy’s presence at the exhibition,” said Joanne Leng, NOF Energy’s Director Business Development.

“OTC is a truly international exhibition and conference, most countries will have a presence and our members will benefit greatly from their attendance.

“In previous years, the NOF Energy stand has proven to be a popular destination for international businesses looking to tap into the expertise and innovation of UK suppliers.”

OTC is the world’s foremost event for the development of offshore resources in the fields of drilling, exploration, production, and environmental protection.

Professionals, service industries and suppliers gather to discuss common issue of ocean resource development.

The event includes the exhibiting of technological innovations and forums on economic, social and political aspects of developing the ocean’s energy resources as well as discussions on environmental protection.

Hosting a stand at OTC is part of NOF Energy’s ongoing commitment to raise the profile of the UK supply chain to the global oil & gas sector and assist in building relationships between its members and companies in markets around the world.

It has in excess of 340 members from the energy sector supply chain and provides a range of business development services to support its members’ commercial activities in UK and international markets.

NOF Energy’s comprehensive range of events, which include hosting international buyer visits to the UK and themed seminars and workshops, ensure members are kept regularly informed of global opportunities.

Through exhibitions, such as OTC, and visits to members’ operations in the UK by organisations from across the globe, NOF Energy is helping provide a platform for the expertise, experience and quality of the UK oil & gas supply chain.

“International operators look to the UK for its skills, expertise and innovative products,” said Joanne.

In addition, NOF Energy provides advice and guidance for UK companies looking to trade internationally by supporting members’ entry strategies and international marketing programmes.

“NOF Energy also organises a range of market visits around the world, which provides the supply chain with the perfect opportunity to showcase their businesses,” she said.

In recent years, NOF Energy has led over 40 market visits to key energy regions of the globe including Brazil, Libya, USA, South Korea and Norway. NOF Energy also explores emerging markets on behalf of members to discover potential opportunities.

Brazil is one of the countries that will have a strong presence at OTC. Last year, NOF Energy visited the Pernambuco region in Brazil. The organisation met with its newly appointed in-country consultant, based in Rio de Janeiro, who will be working with member companies over the coming months, on an individual basis, to assist them with breaking into this profitable export market.

NOF Energy is returning to Brazil later this year as part of a market visit, which is being organised in partnership with the North East Process Industry Cluster (NEPIC) and UK Trade & Investment.

“Every level of the supply chain understands the importance of looking further afield to win new business,” said Joanne.

“NOF Energy works closely with members to provide market intelligence, contacts and introductions that will assist them in building new

relationships and ultimately win new work.”In the past five years, NOF Energy has assisted

members in securing in excess of £50 million worth of new business and, in 2009 alone, at least £10m worth of new business has been won by members as a result of NOF Energy activities.

One NOF Energy success story from within its membership came at OTC in 2009. At the event last year, Wessington Cryogenics sealed a new international partnership to take its products into Scandinavia.

The County Durham-based company, which is returning to OTC with NOF Energy this year, struck an agreement at the exhibition in 2009 with Stavanger-based Fluid Control to market and sell Wessington’s technology, initially in the Norwegian and Danish markets.

Wessington designs, manufactures and installs a broad range of cryogenic storage vessels including ISO tank containers for the oil and gas, bio-medical and science and research sectors.

Its key customer base is the oil & gas sector where its tanks are regularly installed on offshore installations and ships. Employing around 100 people, the company also produces and maintains nitrogen, argon, oxygen and helium vessels, which, like all of its products, are exported to countries across the globe.

Gill Southern, Director of Wessington, said: “The networking and intelligence gathering opportunities on offer at OTC are invaluable as it attracts the world’s major energy players.”

“Last year’s exhibition proved very fruitful for Wessington and played a part in our growing international presence. We hope to achieve similar success at this year’s event.”

• For more information about membership and NOF Energy’s range of business support services, log onto www.nofenergy.co.uk or call +44 (0) 191 384 6464.

NOF EnergyFirst Floorthames houseMandale business parkbelmont industrial Estatedurham dh1 1th, UKt: +44 (0)191 3846464F: +44 (0)191 3846611E: business@nofenergy.co.ukW: www.nofenergy.co.uk

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Instrumentation Systems For Oil & Gas Installations

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STRAINSTALL UK LIMITED have been involved in the design, manufacture and instal-lation of instrumentation systems for Oil and Gas installations, both on and offshore for over 40 years. The founding of the company in the 1960’s coincided with the development of both instrumentation for onshore oil terminals, and the offshore industry in the North Sea. In that time they have built up world-leading experience in meeting Client’s specifi c requirements and solv-ing their measurement problems.

The onshore systems have been predominantly in oil and gas import and export marine terminals. In the 1960/70s the shipping industry had been changing over from rope mooring lines (which ex-perienced terminal personnel could estimate the mooring line loads due to the catenary), to syn-thetic or steel hawsers, which did not show any signifi cant catenaries. This also coincided with the introduction of larger vessels which caused higher loads in the mooring lines. There were an number of incidents of mooring lines breaking due to high loads, and Strainstall, together with Exxon and the UK National Engineering Laboratory, were involved in research into methods of monitor-ing the loads in the mooring lines. From this the Strainstall patented MoorAlert system was developed using load measuring pins installed into quick release hooks to monitor the tensions in the mooring lines of oil tankers.

Then, with the advent of increased safety consciousness, other systems were developed and combined to provide an integrated monitoring system. These systems include DockAlert, a laser based system to monitor the distance and speed of a vessel approaching the jetty in order that the impact speed onto the fenders can be controlled; Loading Arm Monitoring, to monitor the position of the loading arm to ensure they remain within their operating envelope, thus preventing dam-

age/leaks; MetOcean Systems, to monitor both meteorological and oceanographic data; and interfaces to other systems, eg DCS, Ship/Shore Safety Links, etc.

All these modules are integrated into the Strainstall BerthManager System, which was originally developed in Japan during their con-struction of LNG import terminals in the early 1980’s. In fact Strainstall are still the only non-Japanese company to have supplied systems into every LNG terminal in Japan. Strainstall supplied the fi rst integrated system outside Japan to a coal terminal in Hong Kong in 1991, and BerthMan-ager is now a ‘standard’ system in LNG terminals worldwide, providing the terminal managers with data to monitor and protect the jetty infrastruc-ture, and ensure a safe transfer of cargo. A recent system for 2 LNG berths comprised of quick release hooks, integrated remote release of the hooks from a number of locations, BerthManager with MoorAlert, DockAlert, environmental monitor-ing, communication to repeat stations on-shore, carry-on laptop PC’s for taking on board the ves-sel, pagers and output to ship/shore links.

There are a number facilities, predominantly oil terminals, where accepted speed of impact of the vessel onto the fenders is being reduced in order to prolong the life of the facility, and Strainstall have designed a high accuracy laser based DockAlert system to monitor the speeds and have supplied these to a number of terminals.

Offshore systems that Strainstall have supplied have ranged from simple mooring load monitoring on single point mooring buoys, to more sophis-ticated systems, including product and position monitoring, anchor tension monitoring on FPSO’s, crane monitoring and control, winch monitoring and control, all the way through to fully integrated IMMS (Integrated Marine Monitoring System), for Tension Leg Platforms.

Tendon Tension and Riser Tension Monitor-ing systems (TTMS & TTRMS) for Tension Leg Platforms, measure tensions and bending in the tendons and tensions, bending and vibration in the risers, and utilise Strainstall designed and manufactured compression load cells. The TTMS load cells are designed for use underwater to a nominal depth of 100m and a 25 to 30 year life, with designs approved by the major Classifi ca-tion Societies. The design entails careful use of materials, sealing, connectors, cables, etc and the highest capacity so far have been 2,500Kips, (approx 1,200te), proof loaded to 150% rated load, though a 3,500Kips, (approx 1,600te), has been designed.➤ The IMMS systems have included:➤ TTMS,➤ TTRMS,➤ levels and fl ows in all tanks with valve and pump status,➤ ballast control,➤ hull stress, draft, inclinations,➤ absolute and relative positions,

➤ wind, temperature, atmospheric pressure, temperature, relative humidity, visibility,➤ sea current speeds and directions at various depths.

All of these are integrated into a complete distributed PLC based system. This system with Strainstall developed PLC logic and HMI display software provides the operator with data from all the sensors and interfaces, which are available at a number of locations through local touch screen interface panels.

A new market that is emerging is offshore facilities for LNG. These are Floating Storage and Gas Compression vessels to export LNG. These vessels are moored at offshore marginal gas fi elds and take the gas on board, liquefy it, and store it for loading onto LNG Carriers. As no offtake hoses suitable for cryogenic use, ie Liquid Natural Gas, are currently available, this requires that the LNG Carrier and the Floating Unit have to moor side-by-side to transfer cargo by conventional methods using loading arms. These vessels are designed to be on-station for many years without requiring any dry dock facilities, so equipment to be installed is required to be reliable and low maintenance. Strainstall have been able to dem-onstrate this and currently have an order for fully integrated systems for a number of vessels, com-prising of quick release hooks, integrated local and remote hook release, MoorAlert mooring load monitoring, GPS based DockAlert and environ-mental monitoring with portable displays to allow operators to view data in both Hazardous and Non-Hazardous Areas (a laser based DockAlert system would not be suitable, as the Floating unit has a higher freeboard that the LNG Carrier, so laser sensors would ‘shoot’ over the LNGC in-stead of locating on the ship hull). These systems will be utilised to provide operational data during production, storage and transfer of cargos.

Strainstall UK Limited 9/10 Mariners Way Cowes, Isle of Wight PO31 8PD UK T: +44 (0)1983 203600F: +44 (0)1983 291335E: sandy.thomas@strainstall.comW: www.strainstall.com

‘STRAINSTALL UK LIMITED HAVE BEEN INVOLVED IN THE DESIGN, MANUFACTURE AND INSTALLATION OF INSTRUMENTATION SYSTEMS FOR OIL AND GAS INSTALLATIONS, BOTH ON AND OFFSHORE FOR OVER 40 YEARS.’

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Instrumentation Systems For Oil & Gas Installations

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Using Wireless Gas Monitors for Confined Space Entry During Plant Turnarounds

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WhEn PoWEr PlanTS, oil refineries, food processing, pharmaceutical, chemical, paint or plastic plants need to have major service, be upgraded or retrofitted this is called a plant turn-around. These times of zero production are both high stress and high cost both in terms of labor and lost production revenue. Many times repairs need to be made in the “confined spaces” of pres-sure vessels, separators, feeders, storage tanks and valve systems. These limited access, limited ventilation confined spaces present a challenge to both worker safety and retrofit time. A “con-fined space” as defined by OSHA, has limited or restricted means of entry, exit or ventilation, is large enough for a person to enter and perform work, and is not designed for continuous occupancy.

Confined space entry is inherently dangerous, and in the high intensity environment of a plant turnaround, it becomes especially challenging to manage worker safety against the need for efficiency and the economic pressures of getting the plant back on line as quickly as possible. The atmosphere in a confined space can become hazardous for a variety of reasons. Welding opera-tions can produce toxic fumes, and decomposing organic material can release chemicals such as hydrogen sulfide or methane. Heavier than air gases like carbon dioxide can sink to the bottom of

a confined space and reduce the level of oxygen to fatal levels. Oxygen can also be consumed by many chemical processes such as the formation of rust or bacterial action in the fermentation process. There may also be residual chemicals from the production processes that can include volatile organic compounds (VOCs), or hydro-carbons, which are both toxic and flammable and potentially an explosion hazard.

The presence of VOCs immediately calls for the use of either a dedicated photoionisation detector or a multi-gas monitor that includes a PID. In the last several years 5-gas monitors have been available in both hand-held and wireless configurations.

As a turnaround work-shift be-gins each of the confined spaces on the facility would need to be monitored prior to entry. OSHA requires that confined space entry permits be reissued every twelve hours or when a new shift starts. This has traditionally been a manual process, and it takes several hours to revisit the work sites, resample the environment, and then reissue the permit. Hours of downtime during each shift of a plant turnaround can cost companies thousands of dollars. After each work break the confined space in question would again have to be monitored before work could resume. In addition to the work crew a “spotter” would be as-signed to each hole or worksite. This person would be responsible for making sure that the working atmosphere of the work site did not pose a safety threat. Typically the spotter would be issued a hand held monitor that might include a drop line of extended tubing to actually sample the work area. If there was a problem it was the spotter’s job to clear the worksite, begin ventilation and then even-tually give the approval to return to work. This pre-sented two problems, the spotter had to know how to interpret the alarm and had to get help if workers were endangered. Often, the spotter became tired or distracted and could make mistakes in judgment

when reading alarms on monitoring equipment. Initially, site safety officers began deploying

wireless monitor as a back up to the fixed-gas systems that were turned off during

the service cycle. They soon realized that they could also provide a back up to the spotter, and even continuously watch the hole when the spotter was

not there. The advent of wireless gas detection has given facility operators

and safety officers a new approach to this solve “hole watch” problem.

Using wireless gas detection networks with sensors at each confined space work-site and a central command center, safety officers could continuously monitor a work

site, even when workers where not present. Procedures were developed so

that if a work site had not alarmed during the break,

then is could be assumed that it was safe to re-enter the

work site immediately. This cut the wait time after each break and provided a cost effec-

tive way to safely increase productivity.One of the early adopters of wireless gas diction

was an oil refinery that needed to bring down each of six major areas for 60 days at a time. Significant time was saved by not having to recertify confined spaces for each work shift. This is done by using wireless gas monitors to monitor continuously and only re-quired recertification if there has been an alarm.

The Wireless MoniTor DeployMenTThe facility has six independent wireless networks that are linked to local control rooms. Data from each of the six control rooms is uploaded to an off-site data server that integrates all of the site data. The master control room monitors all six production areas through the web-based terminal viewer. The viewer provides visibility to all 36 deployed wire-less monitors as well as real-time maps showing the location and alarm data for all units.

AlArMsAlarm notification is handled in three layers:➤ Individual monitors provide local alarm notifica-tion at the work site.➤ The local control room is notified (visually and audibly) of an alarm over the wireless network and is displayed on the remote base station so that a response can be initiated if necessary.➤ As a backup – Email alerts are issued when-ever any wireless monitor on site goes into alarm.

As each local control room uploads the real time data over hardwire Ethernet cable onto the secure offsite data server, data is also monitored “real-time” on secure web terminal in the Master control room.

The use of wireless toxic gas monitors has come of age. Today’s monitors are quick to deploy or reconfigure and offer the ability to use global positioning satellite technology to know exactly where and alarm is coming from. Wireless gas monitors have been found to provide both a better worker safety net and significant cost savings to industrial facilities that must continually improve their production and manage their costs.

rae systemsCentral and northern englandpeter J. BrattT: +44 (0)1865 408368M: +44 (0)7730 952901F: +44 (0)1865 408 301e: pbratt@raesystems.com

rAe systems - scotland, eire, n. irelandscott WilkieT: +44 (0)1865 408368M:+44 (0)7714 999268F: +44 (0)1865 408 301e: swilkie@raesystems.com

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www.caledyne.com

Safety ValvesEngineering ServicesSolutions for Gas Well DeliquificationCompletion and Intervention ToolsSeal TechnologiesWell Abandonment Artificial Lift ToolsDownhole Hydraulic Pump

CaledyneInnovation and Integrity by Design

Deliquification technologymaximizes gas well productionLiquid loading in gas wells is a well known phenomenon in mature reservoirs. At depletion stage, the energy of the reservoir is not high enough to transport liquid droplets to the surface, resulting in accumulation at the bottom of the well bore causing backpressure on the reservoir, reducing gas production and eventually killing the well. Caledyne has produced the first complete deliquification system suitable for offshore applications.

PHI System

Balance Pump

Complete solutionThe Caledyne complete deliquification system comprises of the balance pump, Torus Valve and pin hole injection (PHI) system. The patented Caledyne Torus Safety Valve was developed to retrofit artificial lift technologies into existing wells, previously restricted due to the flapper-type SSSV. The Caledyne balance pump is a hydraulically actuated reciprocating low-volume pump operated by two hydraulic lines, one filled with oil, the other with water. The PHI is a retrofit surface termination system that minimizes disruption at the surface when umbilicals are fed through the wellhead and avoids the insertion of spool pieces or flow line modifications.

Contact Caledyne for further information on how the system could bring your old gas wells back to life!

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for further information please contact:Graham Murray, Doosan Babcock, Porterfield Road, Renfrew, PA4 8DJTel: +44 (0)141 885 3996email: gmurray@doosanbabcock.com

www.doosanpowersystems.com

Doosan Babcock

Doosan Babcock provides a comprehensive range of full-scale testing services, with manyyears of experience, in support of the Oil & Gas, Energy , Aeronautical and Civil Engineeringindustries.

Component tests can be carried out in one of our test machines or in a custom made rig tosuit client requirements, whether to show proof load carrying capacity or as part of a designvalidation or qualification project, giving you the confidence in the product that can only begained through full-scale testing.

We can support you with the following types of test:

Fatigue tests up to 9MN

Tensile tests up to 20MN

Compression tests up to 30MN

Hydraulic pressure tests up to 2760BarG

4-point bend tests on 12m pipe joints up to 6MNm

Full-scale pipeline co-efficient of friction and wear tests

UKAS - Accredited material testing and CTOD

Strain gauge installation and stress analysis

Bespoke test-rig design and manufacture

Simulated Service Tests of insulated pipelines up to 300BarG and 150°C pipe bore temperature

Full-Scale Pipeline Coefficient of FrictionTest Rig

Simulated Service Test Rig 20MN Capacity Test Rig

Full Scale Component Testing

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BURST ALERT® MAGNETIC SENSOR SYSTEM - Designed to Provide Fast Detection of an Activated Bursting Disk

12

THE BURST ALERT MAGNETIC SENSOR uses a type BAM or BAML magnetic activation assemblies (see fi gure 1) and a magnetically activated type RBS sensor switch that is connected to a monitoring system. The magnetic activation assembly is installed at the downstream side of the bursting disk, between the disk and its safety head. Inserted once, the RBS sensor switch becomes closed circuit whenever a new BAM or BAML magnetic activation assembly is present. When the bursting disk activates, it causes the magnetic activation assembly to arc away from the RBS sensor switch causing it to change state to an open circuit from which an alarm signal can be generated. The RBS sensor switch is reusable and external to the process, automatically reset without the need of electrical work after initial installation. The sensor is installed to a blind threaded hole in the outlet of a BS&B type SR-7R safety head.

OPTIONS AVAILABLEThe Burst Alert Magnetic activation component Sensor, Type BAM, is approved for BS&B bursting disk models SKr, S-90 and RLS. For low pressure applications, Type BAML is designed for use with BS&B disk model LPS. The RBS sensor switch, which has an extended ambient temperature option (RBS-ST) and a high temperature option (RBS-HT) is the same for use with both BAM and BAML activation components.

The BAM and BAML assemblies are not infl uenced by back pressure conditions at the outlet side of the bursting disk. It requires the movement of the bursting disk during activation to push the BAM or BAML module aside, causing the RBS switch to change from ‘open circuit’ to ‘closed circuit’. In the case of the low pressure LPS bursting disk, the BAML engages the full diameter of the LPS bursting disk when it bursts, ensuring sensing of low pressure disk function. SR-7R SAFETY HEADThe SR-7R safety head, designed for use with the Burst Alert Magnetic sensor system, accepts BS&B reverse buckling bursting disk types S-90, RLS, SKr and LPS. An internal ‘bite seal’ located in the safety head inlet provides the best possible ‘metal-to-metal’ seal to the bursting disk. The bite seal is activated by application of the recommended companion fl ange bolt torque. The SR-7R is fi tted with side lugs to pre-assemble the disk and safety head before fi nal installation between companion fl anges.

The unique shape of the SR-7R fl ange adapter ring, which is permanently attached to the safety head inlet, is designed to properly center the bursting disk device inside the bolt circle of the companion fl anges. A correctly centered bursting disk device is required to provide the expected fl ow characteristics, as confi rmed by the certifi ed fl ow resistance factors of the bursting disk type (Kr value(s)). A slight offset will diminish fl ow capacity and increase pressure drop which must be below 3-percent for applications where a bursting disk is applied at the inlet of a safety relief valve. The SR-7R is available to suit standard companion fl ange specifi cations from nominal pipe size 25mm to 250mm according to ASME /ANSI

B16.5 (Classes 150, 300 and 600), EN (PN 10 through 40(), and JIS (PN 10 through 40). Safety head material options include stainless steel 316, Hastelloy and carbon steel.

BS&B MONITORING SYSTEMSType RBS-ST/HT Sensors with BAM/BAML Activation Assemblies are designed for connection to most monitoring systems. BS&B offers both hard-wired and wireless monitoring options:➤ Detec-Saf hard wired monitoring and alarm systems are available in modules to support from 1 to 15 bursting disk devices complete with back up battery power and intrinsically safe barrier protected circuits. ➤ Rupture Disk Manager to optimize the safety, integrity and total cost of ownership of bursting disk devices. The RDM collects pressure and temperature data at the bursting disk device and analyzes the information for characteristics detrimental to safety while providing immediate indication when a bursting disk has burst using a Burst Alert® sensor. ➤ BS&B SmartDisk® wireless monitoring system that connects up to 32 bursting disks to one monitor without the expense of cable, informing the user immediately when a bursting disk has activated.➤ BS&B Wireless A2B System for communication of Burst Alert® sensor information wirelessly from point ‘A’ to point ‘B’ for connection to the users instrumentation system. Both standard and A heavy-duty ver sions are is provided for applications required to meet both non hazardous and hazardous service NEC Class I Division I or ATEX Zone 1 requirements.

ABOUT BS&B SAFETY SYSTEMSBS&B Safety Systems Ltd. is the leading global manufacturer of bursting disk pressure relief devices, buckling pin relief valves, explosion protection systems and wireless monitoring devices that are marketed throughout Europe and world markets. The company is the inventor of the bursting disk and has shaped the growth of pressure relief technology for over 75-years. BS&B is an ISO-9001 certifi ed manufacturer with manufacturing facilities in Limerick, Ireland, as well as Tulsa, Oklahoma. USA; Minneapolis, Minnesota, USA; Monterey, Mexico; Suzhou, China; Chennai, India; Edmonton, Canada; and Sao Paulo, Brazil.

Bs&B Safety Systems LtdRaheen Business ParkLimerick, IrelandT: +353 (0)61 227022F: +353 (0)61 227987E: sales@bsb.ieW: www.bsb.ie.com

‘BS&B SAFETY SYSTEMS LTD. IS THE LEADING GLOBAL MANUFACTURER OF BURSTING DISK PRESSURE RELIEF DEVICES, BUCKLING PIN RELIEF VALVES, EXPLOSION PROTECTION SYSTEMS AND WIRELESS MONITORING DEVICES THAT ARE MARKETED THROUGHOUT EUROPE AND WORLD MARKETS. THE COMPANY IS THE INVENTOR OF THE BURSTING DISK AND HAS SHAPED THE GROWTH OF PRESSURE RELIEF TECHNOLOGY FOR OVER 75-YEARS.’

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Nautic is one of the world’s most respectedmanufacturers of fittings and flanges in alloys.

We’re out in front when it comes to copper nickel,6 Mo and a whole range of high nickel grades.

We make to your requirements or supply from ourextensive stocks. FromANSI to EEMUA, from½” to 36”, we’re quick off the mark supplyingupstream and downsteam projects worldwide.

To test the water, send us your next RFQ.You’ll find our response quite speedy.

alloys@nautic.co.uk

NAUTICThe Clear Leader

NAUTIC STEELS LTD. NAUTIC HOUSE CLAYMORE TAMWORTH B77 5DQ UK

NORSOK M-650

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Upgrading from Pellistor gas sensors to Infrared technology

info@crowcon.com www.crowcon.com

IREX - A NEW SOLUTION TO PAINLESSLY UPGRADE YOUR SAFETY

15

IntroductIonFlammable gases and vapours can present considerable dangers in many industrial applica-tions, none more so than the processes involved in extracting, transporting and processing oil and gas. Fast and reliable detection of gas accumula-tions in sub-LEL (Lower Explosive Limit) levels is essential in order to prevent potential explosions. The longest established and most prevalent sen-sor technology employed for detecting flammable gas is the Pellistor (or Catalytic Bead as it is otherwise known).

Pellistor-based detectors are widely available at low cost, but are vulnerable to permanent poison-ing by contaminants, do not fail safe, require very regular maintenance and calibration and have a limited life-span.

Infrared (IR) gas detectors over-come all of the

limitations associated with pellistors to provide fast and reliable detection of Hydrocarbon gases. IR detectors provide rapid gas detection, fail-safe operation, and in some cases compliance with the IEC61508 functional safety standard.

IR detector prices have fallen significantly in recent years, and although the price per point is still higher than pellistor based detectors, IR detectors quickly pay for themselves by reducing operational/maintenance costs.

Replacing pellistor-based detectors usually means that the control equipment will also need upgrading. This is due to the mV Bridge type signal interface between detector and controller. IR detectors typically require a power supply of between 12 and 30 Volts dc, and provide a 4-20mA signal to the controller. Thus a pellistor control card is inherently incompatible with conventional IR gas detectors.

‘Pellistor Replacement’ IR gas detectors simulate a pellistor mV type signal and are specifically designed to replace pellistor sensors with IR technology, whilst retaining the original control equipment, cabling and detector junction box. Thus the very significant cost associated with upgrading controller and re-installation is avoided.

One of the more difficult problems to over-come with pellistor IR replacement technology is signal drift. Systems operating using a mV

(Wheatstone) Bridge (ie pellistor based systems) are very vulnerable to this problem. In order for a control card to show a zero gas reading the four resistances in the bridge must be balanced. Resistance imbalances can however be introduced by poor cable connections either due to loose terminals or through oxidation of conductors. Any cable/terminal resistance changes are manifested as zero drift on the control card. An effective pellistor replacement IR detector must have very low power consumption (ie less than 1 Watt), and a well designed power supply so that potential cable influences on the signal are negated.

Pellistor replacement IR detectors should be rigorously designed and tested to ensure reliable operation at all times. High integrity products are designed to comply with the demanding requirements of IEC61508 (ideally to SIL 2) in terms of both hardware and software. Gas detection performance (response time, short and long-term stability, linearity, accuracy, temperature stability etc) should be verified to the performance standard EN61779:2000.

Finally, independent verification of the product by a recognized testing body should have been conducted. The product should be performance tested in simulated offshore conditions to ensure reliable performance in even the most extreme conditions.

crowcon detection Instruments Ltd2 Blacklands Way, Abingdon Business ParkAbingdon oX14 1dYunited Kingdomt: +44 (0)1235 557700F: +44 (0)1235 557733E: sales@crowcon.comW: www.crowcon.com

OffshoreReview_Crowcon.indd 15 18/04/2010 20:48

Flexitallic to the rescue with FRG

16

engineers globally, interested in Flexitallic’s design and technology and requesting further information on how, where and when to use the FRG. Many enquiries involve the use of the FRG to both shorten the time of unplanned maintenance and also the reduction of the damaging effects of corrosion on new and replacement equipment, both having major implications for engineers.

Russ Currie, applications engineering manager, Flexitallic, reports: “Shutdown season is rapidly approaching and the FRG offers engineers an exciting solution for upgrading equipment and processes especially when faced with the challenges which increased demands from health, safety and environmental legislation bring.

“Engineers and asset managers are instantly identifying that the FRG offers an opportunity to increase production up time, reduce maintenance down time, positively affect past and future corrosion damage to ultimately improve the profitability especially on ageing offshore assets. Feedback on the FRG from the industry includes many positive comments on the simplicity of the design, material development, innovative use of available technology and ease of installation.”

In line with the long list of features and benefits boasted by the FRG, Flexitallic has invested in a sophisticated marketing campaign to brand and launch the new gasket, to maximise awareness amongst engineers and asset managers to impact the gasket industry globally. Aspect Design & Marketing gave the flange rescue gasket a unique brand – a highly identifiable and recognisable industrial styled FRG “stamp” logo, and created a distinctive design style for use across all marketing communications.

Phil Kelshaw, sales and engineering director, Flexitallic comments: “The Flexitallic team has designed and manufactured an incredible product in the flange rescue gasket and rather than relying on traditional engineering gasket industry style marketing we felt the FRG warranted a striking brand and marketing communications which reflect the FRG’s innovative features.

“We maintain our position as an industry leader in sealing solutions through engineering expertise, pioneering gasket design, materials development and setting industry standards. We have strong, valued, long-term partnerships with customers

to identify problems and provide fast, innovative solutions. They rely on our knowledge of current health and safety and environmental issues affecting the industry. FRG is a great example of Flexitallic’s commitment to offering a superior sealing solutions package.”

The FRG is the latest in a long line of sealing technology innovations from Flexitallic which began with the invention of the spiral wound gasket nearly a century ago and include the flexible Sigma® range of high integrity, low maintenance gaskets across the pH range, wide range of temperatures and pressures and Thermiculite® for ultimate performance in fire-safe, high temperature applications.

ThermiculiTe® – innovaTive sealing maTerials improving asseT reliabiliTyThermiculite® sealing technology was developed by Flexitallic to provide a successful seal across the widest spectrum of chemical processing technologies.

Chemically an inorganic silicate, Thermiculite® possesses outstanding resistance to extremes of both chemical media and temperature; capable of sealing at temperatures ranging from cryogenics to in excess of 1000oC, even in oxidising environments.

The ability of Thermiculite® to withstand such media and process extremes lies in its basic chemical make up, structure and availability in different gasket styles.

Expansion of the crystal structure and packing optimisation of the resulting silicate plates ensures gas tight sealing under extreme process conditions.

Recent testing has proven the material’s low leak rates - thousands of times tighter than the requirements of Germany’s air quality standard (TA Luft VDI 2440).

Thermiculite® technology is available as soft cut gaskets for low pressure sealing applications and semi-metallic products for intermediate, high pressure or cycling applications.

Offering a single solution, Thermiculite® replaces the need for a range of sealing products based on a variety of other materials’ technologies. Inventory reduction, emissions compliance, increased gasket life and reduced potential for misapplication equate to real cost savings.

The Flexitallic Group is the international market leader in the manufacture and supply of high quality, high value industrial static sealing products.

Developer of the spiral wound gasket in 1912 in the US, Flexitallic continues to innovate with materials and products including Thermiculite®, Sigma® and the FRG (flange rescue gasket).

Flexitallic’s global customer service network of owned manufacturing facilities, licensees and global distribution network ensure local demand is met quickly, with a combination of the highest product quality and customer service.

With a varied product offering that includes spiral wound gaskets, semi-metallic gaskets, RTJ gaskets, FlexproTM Kammprofile, sheet gaskets, and dynamic and static packings, the Flexitallic Group draws upon its past and present day mixture of leadership, quality, service and technology to develop sealing solutions for industry globally.

Flexitallic ltdscandinavia millhunsworth lanecleckheaton bD19 4lnunited KingdomT: + 44 (0)1274 300300e: flangerescuegasket@flexitallic.euW: www.flangerescuegasket.com

Uniquely the gasket sits across the sealing face and the corroded area managing corrosion. With the FRG’s bolt locators, correct fitting is made easy.

Set to RevolutioniSe oFFShoRe aSSet maintenance, Flexitallic has launched the first-ever solution to sealing damaged flanges without the need for replacement or machining – the Flange Rescue Gasket (FRG).

The FRG is a unique invention developed in response to customer demand for a sealing solution to reduce the lengthy and costly process of flange maintenance in corrosive offshore environments. Flexitallic went further by creating the FRG which actually negates the requirement for flange replacement or machining, so dramatically reducing downtime.

Utilising Flexitallic’s revolutionary sealing technology, highly compressible Sigma® ensures the FRG conforms to damaged flange surfaces to seal and prevent further deterioration. Restructured Sigma® PTFE bonded to the high integrity serrated metal ring provides a leak-free seal and blow out resistance. The bright, easily identifiable FRG has a PTFE coated body which is corrosion resistant and features integral bolt holes for ease of installation and ensures correct location. Superior mechanical integrity allows the use of the full range of torque reducing the risk of operator error to meet stringent HSE standards.

Previously, sealing issues with corroded flanges have discouraged frequent inspection. Now, flanges can easily be inspected and sealed effectively enabling fast, accurate assessment of internal corrosion.

The FRG is the ultimate corrosion management tool which is proactive in helping inspection and reactive in enabling repair. By reducing leaks and slowing corrosion, the possibility of shut-downs with associated HSE visits are dramatically reduced, as is the huge loss of revenue associated with a stop in production.

From corrosion management to health and safety, through environmental impact to incident avoidance, the FRG is poised to dramatically change flange inspection and maintenance forever.

Flexitallic’s approach to the common problems experienced by the oil and gas offshore industry has resulted in high numbers of enquiries from

OTC_Flexitallic_Rev.indd 16 18/04/2010 20:49

OTC_Flexitallic_Rev.indd 17 18/04/2010 20:49

for superduplex

No.

superduplex

o.Langley Alloys

All grades available from stock in

BAR – PLATE – PIPE

FERRALIUM® 255-SD50 - 32550 - F61

Alloy 32760 - F55 - (Zeron 100)

Alloy 32750 - F53 - (SAF-2507)

Alloy 31803 - F51 - (SAF 2205)

Superduplex

Duplex

www.langleyalloys.com

Langley Alloys Ltd

18

Langley Alloys LtdThe Wharf 504-506 Lowfi eld Drive Newcastle Staffordshire ST5 0UUUnited KingdomT: + 44 (0)1782 610250 F: + 44 (0)1782 612219E: sales@langleyalloys.comW: www.langleyalloys.com

‘WHILE FERRALIUM 255-SD50 IS THE FLAGSHIP OF LANGLEY ALLOYS FOR THE OFFSHORE INDUSTRY, IT IS BY NO MEANS THEIR ONLY MATERIAL TO FIND WIDESPREAD USE IN SEAWATER ENVIRONMENTS. THE COMPANY’S BROAD RANGE OF DUPLEX STEELS, NICKEL ALLOYS AND BRONZES HAVE ALL BEEN SELECTED FOR THEIR PERFORMANCE IN THE MOST DEMANDING ENVIRONMENTAL AND INDUSTRIAL CONDITIONS.’

UNTIL THE OFFSHORE INDUSTRY GREW IN SIZE AND COMPLEXITY, applications for high alloy stainless steels were not widespread. Subsequently, most of the development has centred on such materials’ ability to resist attack by seawater for an extended number of years. This has been due to the need of the offshore oil and gas industry for engineering alloys that offer long service life and good structural integrity to components,

particularly those used in sub-sea applications. In the forefront of these material developments has been Langley Alloys

Ltd, a British company which developed the fi rst superduplex stainless steel - FERRALIUM.

Over the years, increased metallurgical understanding has enabled many enhancements to be introduced. One of the key requirements demanded is consistency of product, and much emphasis is placed on strict melting and process control practices, highly monitored process controls and a high level of destructive and non-destructive testing.

The latest superduplex developed by Langley Alloys is FERRALIUM 255-SD50. This has resulted from work to pi npoint the specifi c aspects of the composition and manufacturing process which maximise the mechanical properties while offering corrosion resistance.

One such aspect of development has been the understanding and careful control of sulphur levels in the alloy to prevent pitting and crevice corrosion in seawater. Inclusion of copper in the composition FERRALIUM 255-SD50 added to its corrosion resistance and helped make it a highly effective material with exceptional strength. It is now widely specifi ed in the offshore industries for components such as downhole tools, drill-string components (including those operating in sour conditions), plus a whole range of applications in ancillary equipment such as transponder housings, pumps and valves. The material is also ASME approved for pressure vessels and signifi cantly exceeds the NORSOK benchmark for superduplex stainless steels.

While FERRALIUM 255-SD50 is the fl agship of Langley Alloys for the offshore industry, it is by no means their only material to fi nd widespread use in seawater environments. The company’s broad range of duplex steels, nickel alloys and bronzes have all been selected for their performance in the most demanding environmental and industrial conditions.

For example, the high-strength cupro-nickel HIDURON 130 was also developed by the company. It too is corrosion resistant and also combats hydrogen embrittlement, making it particularly useful in the vicinity of cathodic protection systems. Other properties of HIDURON 130 give the benefi ts of resistance to galling and bio-fouling, rendering it particularly useful for connecting parts in contact with seawater such as stab plates and ROV tools and connectors.

With oilfi elds now opening up in deeper seas, there now a trend to ‘fi t and forget’ design solutions. Langley Alloys recognises this need and effectively brings materials to the market place through dialogue with equipment design engineers, use of its manufacturing expertise and the follow-through with competitive pricing, a wide range of stock for rapid distribution and shorter lead times for less than mill quantities. Surely Langley Alloys should be an early port of call for all who need engineering materials solutions in seawater environments?

OTC_Langley.indd 18 18/04/2010 20:53

Converteam, the power conversion company, provides customised solutions and systems converting electrical energy into productive performance. These solutions are built around three core components: rotating machines, variable speed drives, automation and process controls.

Our scope covers consulting, design, manufacture, system integration, installation, commissioning and a broad range of services. Our worldwide workforce remains fully committed to one overriding goal: to bring you the best in technology, backed up with truly effective service in all markets.

Many hundreds of ships have been fitted with Converteam’s electric propulsion systems, with extensive experience in FPSOs, dive support vessels, OSVs/PSVs and many other vessel types.

Converteam are world leaders in integrated electric power and propulsion solutions.

For more information visit Converteam at Offshore Technology Conference: Stand No. 2205, 3 - 6 May 2010, Reliant Center, Houston, Texas. USA

www.converteam.com

21st Century- OTC Houston Edition - Converteam.indd 1 16/03/2010 16:19:31OTC_Converteam.indd 19 20/04/2010 12:08

hybridhybrid (hī’brĭd)Something of mixed origin or composition

The Patent Pending Smart Band Hybrid system denotes the mixture of polymers within the buckle part which allows for a dramatic increase in strength.

High Strength Glass filled teeth are snapped into a more flexible plastic buckle to create the perfect combination allowing the Smart band hybrid system to become the strongest plastic band & buckle system in the world.

Typical applications include: Offshore: VIV Strakes, piggyback clamps (pipe lay), umbilical & riser impact protection, pile protection, buoyancy & flotation modules and sensor & anode attachment.

Onshore: street furniture, sign attachment, insulation, electrical, cooling towers, HVAC (flexible ducting) and chemical.

Smart Band Hybrid systems come in a choice of materials which offer Long life, Non corrosive and high strength/relaxation properties.Smart Band is an ideal alternative to a variety of alternative metallic strapping solutions such as Stainless Steel, Titanium, Monel & Alloy 625.

Band Width

32mm 1¼ inch

19mm ¾ inch

Max Strength (kg / lb) 2560 / 5640 1220 / 2680

Min final retention system force (N) 6500 3400

Max Temp (°C / °F) 115 / 240 125 / 257

Min Diameter (mm / inch) 400 / 16 100 / 4

Band Thickness (mm / inch) 4.6 / 0.18 3.6 / 0.14

Supply Condition Pre-cut/Reel Pre-cut/Reel

Hand Tool SM-FT-1000 SM-FT-1000

ALL WEIGHTS AND DIMENSIONS ARE ±2.5%

For prices, specification and sizing advice and answers to technical questions please contact one of our sales staff who will be happy to assist you.

“TheStrongest

Plastic Band & Buckle ClampingSystem in the World”

Smart Band® has been designed to provide a direct alternative to the widely used CRA Strapping solutions currently in the marketplace today.

We believe that not only does Smart Band® match the performance of the CRA alternatives it provides a number of distinct and important benefits.

These include:

Low Price:Smart Band® provides cost savings on CRA alternatives

Stable Price:Smart Band® raw materials are not exposed to large price fluctuations

Long Life:Smart Band® is made from Nylon 11 which has been proven to survive for extensive periods of time in the harsh offshore & subsea environments

Strength:Similar performance to CRA alternatives

Retention Force:Smart Band® can be tightened to a higher retention force than CRA alternatives

Safety:With no sharp edges the use of Smart Band® and installation tooling significantly decreases the risk of injury during installation.

“The Strongest Plastic Band & Buckle Clamping System in the World”

32mm (1¼”) Smart Band® PA11GF vs CRA Strapping Solutions

HCL – UK & Rest of the WorldTel: +44 (0)1761 417714 Fax: +44 (0)1761 417710 Email: sales@hclfasteners.co.uk

HCL – North AmericaTel: 281-717-1145 Fax: 281-717-1146 Email: sales@hclfasteners.com

Visit www.hclfasteners.com to view our complete range of products.

HCL_Doublepg_Advert_V2.indd 1-2 23/03/2010 12:29OTC_HCL.indd 20 18/04/2010 20:54

hybrid (hī’brĭd)Something of mixed origin or composition

The Patent Pending Smart Band Hybrid system denotes the mixture of polymers within the buckle part which allows for a dramatic increase in strength.

High Strength Glass filled teeth are snapped into a more flexible plastic buckle to create the perfect combination allowing the Smart band hybrid system to become the strongest plastic band & buckle system in the world.

Typical applications include: Offshore: VIV Strakes, piggyback clamps (pipe lay), umbilical & riser impact protection, pile protection, buoyancy & flotation modules and sensor & anode attachment.

Onshore: street furniture, sign attachment, insulation, electrical, cooling towers, HVAC (flexible ducting) and chemical.

Smart Band Hybrid systems come in a choice of materials which offer Long life, Non corrosive and high strength/relaxation properties.Smart Band is an ideal alternative to a variety of alternative metallic strapping solutions such as Stainless Steel, Titanium, Monel & Alloy 625.

Band Width

32mm 1¼ inch

19mm ¾ inch

Max Strength (kg / lb) 2560 / 5640 1220 / 2680

Min final retention system force (N) 6500 3400

Max Temp (°C / °F) 115 / 240 125 / 257

Min Diameter (mm / inch) 400 / 16 100 / 4

Band Thickness (mm / inch) 4.6 / 0.18 3.6 / 0.14

Supply Condition Pre-cut/Reel Pre-cut/Reel

Hand Tool SM-FT-1000 SM-FT-1000

ALL WEIGHTS AND DIMENSIONS ARE ±2.5%

For prices, specification and sizing advice and answers to technical questions please contact one of our sales staff who will be happy to assist you.

“TheStrongest

Plastic Band & Buckle ClampingSystem in the World”

Smart Band® has been designed to provide a direct alternative to the widely used CRA Strapping solutions currently in the marketplace today.

We believe that not only does Smart Band® match the performance of the CRA alternatives it provides a number of distinct and important benefits.

These include:

Low Price:Smart Band® provides cost savings on CRA alternatives

Stable Price:Smart Band® raw materials are not exposed to large price fluctuations

Long Life:Smart Band® is made from Nylon 11 which has been proven to survive for extensive periods of time in the harsh offshore & subsea environments

Strength:Similar performance to CRA alternatives

Retention Force:Smart Band® can be tightened to a higher retention force than CRA alternatives

Safety:With no sharp edges the use of Smart Band® and installation tooling significantly decreases the risk of injury during installation.

“The Strongest Plastic Band & Buckle Clamping System in the World”

32mm (1¼”) Smart Band® PA11GF vs CRA Strapping Solutions

HCL – UK & Rest of the WorldTel: +44 (0)1761 417714 Fax: +44 (0)1761 417710 Email: sales@hclfasteners.co.uk

HCL – North AmericaTel: 281-717-1145 Fax: 281-717-1146 Email: sales@hclfasteners.com

Visit www.hclfasteners.com to view our complete range of products.

HCL_Doublepg_Advert_V2.indd 1-2 23/03/2010 12:29OTC_HCL.indd 21 18/04/2010 20:55

Is it a Belleville washer or a precision disc spring?

Belleville Springs is a member of the Springmasters® Group

Arthur Street, Lakeside, Redditch, Worcestershire B98 8JY. Tel: +44 (0)1527 500500 Fax: +44 (0)1527 517039 info@bellevillesprings.com www.bellevillesprings.com

Consultancy, Design,Manufacture andDistribution...

Your complete solution for

DISC SPRINGS AND BELLEVILLE WASHERS

Your complete solution for

DISC SPRINGS AND BELLEVILLE WASHERSArthur Street, Lakeside, Redditch, Worcestershire B98 8JY. Tel: +44 (0)1527 500500 Fax: +44 (0)1527 517039 info@bellevillesprings.com www.bellevillesprings.com

Belleville_A4fpAd 16/12/09 23:56 Page 1

22

WHEN JULIAN BELLEVILLE patented his coni-cal spring disc in 1861 it is unlikely he had any idea that it would have such wide-ranging applications.

Unlike the conventional helical compression spring that has a linear force/defl ection character-

istic, the same characteristic in a disc spring is a function of the variable cone-height to thickness ratio.

This is often a useful feature: for example, the seal on a spherical ball valve requires a spring force back-up to achieve suffi cient seating stress which must be maintained throughout a signifi cant amount of seal face wear. A disc spring with a cone height approximately 1.5 times the material thickness, offers a near constant force for a range of defl ections.

A constant force characteristic is also desirable in joints or bolting systems subject to thermal expansion and contraction.

STACKINGWhile the variation of cone height to thickness ratio can be employed to produce characteristics of a progressive, linear, or regressive nature, the full realisation of the versatility of the disc spring emerges with ‘stacking’ into spring columns. A disc spring ‘nested’ inside another – i.e., convex face placed to concave face (same way up ) – is described as two disc springs assembled in paral-lel. This arrangement results in a force capacity

double that of a single disc spring, yet the defl ec-tion capability remains that of a single disc.

It is a misconception that the resultant force from two disc springs assembled in parallel is equal to the force of a disc spring that is twice the thickness of the single disc. Not so, due to the fact that disc spring thickness is raised to the power of three in the force calculation formula. For example, for identical inside and outside diameters, the force to fl at of a single 2mm thick disc may be 5,423N and the force to fl at of a single 4mm thick disc is 26,697N.

Having multiplied the force of a single disc spring by nesting further disc springs of the same dimensions in parallel, it is possible to multiply the defl ection by adding further nested units to the column which are apposed to one another, - i.e. ‘back-to-back’. Single disc springs of the same dimensions can also be stacked back-to-back, termed stacking in series.

When disc springs are employed in series or parallel stacks, or a combination of both, Fig 1, friction occurs at the bearing points of opposed springs in series stacking, and to a greater degree across the interfaces of parallel nested discs.

Often the hysteresis due to friction is advantageous for those applications requiring a damping effect. A ‘rule of thumb’ for guidance on length of disc spring stacks to minimise friction, is that, in the unloaded condition, the stack length should not exceed 2.5 times the disc springs outside diameter.

DISC SPRING SELECTIONPrecision disc springs, produced to the DIN standards 2092 and DIN 2093, are pre-stressed( scragged ); machining and radiusing of edges also removes stress raisers, which could otherwise reduce fatigue life.

The term Belleville washer generally applies to the lower cost, less precise form of conical spring disc, normally used on applications of a less criti-cal nature. Scragging is omitted and the inside and outside diameters are not machined.

Select therefore disc springs to DIN 2092/2093 for critical loading or dynamic applications and the Belleville washer for static applications where some setting and /or loss of force can be tolerated.

BELLEVILLE SPRINGS LTD.Using computer software and our many years experience of the disc spring industry, Belleville springs are perfectly placed to help you select the correct component for your application. Whatever your questions give us a call.

‘UNLIKE THE CONVENTIONAL HELICAL COMPRESSION SPRING THAT HAS A LINEAR FORCE/DEFLECTION CHAR-ACTERISTIC, THE SAME CHARACTERISTIC IN A DISC SPRING IS A FUNCTION OF THE VARIABLE CONE-HEIGHT TO THICKNESS RATIO.’

Single Disc Spring

Disc Springs in series

Total Force = Force of single disc spring

Total Force = Force of single disc spring

Total Force = 2 x Force of single disc spring

Total Force = 2 x Force of single disc spring

Total Defl ection = Defl ection of single disc spring

Total Defl ection = Defl ection of single disc spring

Total Defl ection = Defl ection of single disc spring

Total Defl ection = Defl ection of single disc spring

Disc Springs in parallel

Disc Springs in series

and parallel

1

3

2

4

Stacking

Belleville Springs LtdArthur Street, Lakeside, Redditch B98 8JYUnited KingdomT: + 44 (0)1527 500500F: + 44 (0)1527 517039W: www.bellevillesprings.comE: info@bellevillesprings.com

OTC_Belleville.indd 22 18/04/2010 20:58

Is it a Belleville washer or a precision disc spring?

Belleville Springs is a member of the Springmasters® Group

Arthur Street, Lakeside, Redditch, Worcestershire B98 8JY. Tel: +44 (0)1527 500500 Fax: +44 (0)1527 517039 info@bellevillesprings.com www.bellevillesprings.com

Consultancy, Design,Manufacture andDistribution...

Your complete solution for

DISC SPRINGS AND BELLEVILLE WASHERS

Your complete solution for

DISC SPRINGS AND BELLEVILLE WASHERSArthur Street, Lakeside, Redditch, Worcestershire B98 8JY. Tel: +44 (0)1527 500500 Fax: +44 (0)1527 517039 info@bellevillesprings.com www.bellevillesprings.com

Belleville_A4fpAd 16/12/09 23:56 Page 1

OTC_Belleville.indd 23 18/04/2010 20:58

Scheduled and emergency valve maintenanceHow high quality aftercare is all part of the service at Koso Kent Introl

24

It’s hIghly lIkely that at some stage in its life, a control, choke or rotary valve will need to be either repaired or replaced. Although this might be during a scheduled shutdown, there might be an occasion when a valve fails in service, and until it can be fixed, this might mean a costly period of down-time.

Martin Broadbent, Spares and Service Manager at Koso Kent Introl (KKI) knows all about the challenges and frustrations that such emergency situations can create. “The failure of a single valve can result in a whole operation grinding to a halt. Our clients need to be sure that they can be up and running again as soon as possible, with no risk of the failure happening again any time soon.”

servIceMartin heads up the aftercare team at KKI, and supports the resolution of such incidents, week in, week out. His team is ready to travel the world at a moment’s notice, to tackle the problem valve on-site and get the process running again with minimum delay. Members of the team have travelled from their UK base in Brighouse, West Yorkshire to client sites as far afield as Australia and Alaska - and every point in-between.

In one notable incident, following the failure of a valve on an offshore oilrig, the client had initially estimated nine days’ unproductive downtime; Martin recalls that the team worked round the clock to ensure the job was completed within one week. He is adamant that no other service provider could have turned the job around so quickly and to such a high standard.

But life within the service team isn’t all about crisis management. Supporting scheduled shutdown programmes is a core activity, too. In fact, this month the team is busy supporting the maintenance, repair and upgrade of over 100 valves from one of its key clients during a three-week shutdown programme. In a project run with military

precision in conjunction with the client, the service team is focused on delivering the valves back in ‘as new’ condition, on time and within budget.

sparesOf course, spares are available for all the valves in the KKI range as well as associated actuators and instruments. OEM guarantees and certificates of conformance are supplied as a matter of course to give clients absolute certainty about the quality of spares they are receiving. Items are delivered anywhere in the world via a fast-track service and in eco-friendly packaging.

total qualItyMartin is justifiably proud of the fact that the KKI philosophy of total quality is as embedded into aftercare as it is in the design and production of new valves. He explains: “The two teams, service and manufacturing, often work together on aftercare client challenges. This combination of expertise ensures quality, reduces risk, controls

cost and can provide a much faster turnaround than could be expected elsewhere.”

KKI’s longevity certainly helps in the delivery of an exemplary service. Records exist for every valve ever produced and serviced in the factory’s 40-year history. This unique record of the life of a valve, along with the service conditions in which it is operating, means that the team knows exactly what they are dealing with before they begin to service it. There can be no more reassuring fact to a client looking for a safe pair of hands.

If you would like advice on any aspect of servicing or upgrading your valves, the KKI aftercare team is only a phone call away. Their world-class expertise is available on jobs of any size, in any location. Don’t wait for a crisis to happen before getting in touch!

• For a copy of Koso Kent Introl’s new Service Solutions brochure, visit www.kentintrol.com, or telephone +44 (0)1484 710311.

koso kent Introl ltdarmytage road, Brighouse, West yorkshire, hd6 1qFW: www.kentintrol.comt: +44 (0)1484 710311e: vector@kentintrol.com

WHETHER FOR VALVE OVERHAULDURING SCHEDULED SHUTDOWNFOR ON-SITE REPAIR DURING ANUNPLANNED OUTAGEOR FOR OUR FAST-TRACKSPARES SERVICE

kentintrol

™

™

Our customers trust us to provide anunparalleled aftercare service thatwill return them to full operations inthe shortest time possible.

Drawing on four decades ofengineering excellence from our UKfactory in Yorkshire, our dedicated andexperienced aftercare team is highlyskilled, fully qualified for UK andNorwegian sector offshore work, andcan be mobilised within 24 hours toattend incidents anywhere in the world.

All spares are issued with an OEMguarantee and a certificate ofconformance, and our unique tracingsystem gives us a complete historyfor every valve ever manufactured oroverhauled in our factory.

At Koso Kent Introl we are proud toprovide our customers with anaftercare service based on qualitywithout compromise. Talk to us todayto get expert advice on yourmaintenance, overhaul andunplanned service requirements.

KOSO KENT INTROL LIMITEDARMYTAGE ROADBRIGHOUSEWEST YORKSHIREHD6 1QFUK

TELEPHONE+44 (0)1484 710311

FACSIMILE+44 (0)1484 407407

EMAILinfo@kentintrol.com

WEBSITEWWW.KENTINTROL.COM

KKI Service FPFC advert:Layout 1 26/2/10 12:27 Page 1

‘Before’ valve

‘After’ valve

OTC_Koso_Kent.indd 24 18/04/2010 21:00

Scheduled and emergency valve maintenanceHow high quality aftercare is all part of the service at Koso Kent Introl

WHETHER FOR VALVE OVERHAULDURING SCHEDULED SHUTDOWNFOR ON-SITE REPAIR DURING ANUNPLANNED OUTAGEOR FOR OUR FAST-TRACKSPARES SERVICE

kentintrol

™

™

Our customers trust us to provide anunparalleled aftercare service thatwill return them to full operations inthe shortest time possible.

Drawing on four decades ofengineering excellence from our UKfactory in Yorkshire, our dedicated andexperienced aftercare team is highlyskilled, fully qualified for UK andNorwegian sector offshore work, andcan be mobilised within 24 hours toattend incidents anywhere in the world.

All spares are issued with an OEMguarantee and a certificate ofconformance, and our unique tracingsystem gives us a complete historyfor every valve ever manufactured oroverhauled in our factory.

At Koso Kent Introl we are proud toprovide our customers with anaftercare service based on qualitywithout compromise. Talk to us todayto get expert advice on yourmaintenance, overhaul andunplanned service requirements.

KOSO KENT INTROL LIMITEDARMYTAGE ROADBRIGHOUSEWEST YORKSHIREHD6 1QFUK

TELEPHONE+44 (0)1484 710311

FACSIMILE+44 (0)1484 407407

EMAILinfo@kentintrol.com

WEBSITEWWW.KENTINTROL.COM

KKI Service FPFC advert:Layout 1 26/2/10 12:27 Page 1

OTC_Koso_Kent.indd 25 18/04/2010 21:00

www.harshandhazardous.com www.ehawke.com

HARSH AND HAZARDOUS AREASHARSH AND HAZARDOUS AREASHARSH AND HAZARDOUS AREASHARSH AND HAZARDOUS AREASHARSH AND HAZARDOUS AREASOFFSHORE PLATFORMSOFFSHORE PLATFORMS

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UK Office Hawke InternationalOxford Street West, Ashton-under-Lyne,Lancashire 0L7 0NA. UK.Tel: +44 (0) 161 830 6695Fax: +44 (0) 161 830 6698 E-mail: sales@ehawke.com

World leading range of hazardous area and industrial cable glands, providing unrivalled safety

Extensive range of stainless steel Exe enclosures, with global certification options

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Singapore Office Hawke International130 Joo Seng Road, #03-02, Olivine Building,Singapore 368357Tel: +65 (6282) 2242Fax: +65 (6284) 4244 E-mail: asia@ehawke.com

USA Office Hawke International4140 World Houston Parkway, Suite 130, Houston, TX. 77032 USA.Tel: 00 (1) 281 445 7400 Wats: (800) 354 9189Fax: 00 (1) 281 445 7404 E-mail: america@ehawke.com

Complete range of Exd Instrument, Control and Power connectors, allowing for greater flexibility

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OTC_Hawke.indd 26 18/04/2010 21:01

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UK Office Hawke InternationalOxford Street West, Ashton-under-Lyne,Lancashire 0L7 0NA. UK.Tel: +44 (0) 161 830 6695Fax: +44 (0) 161 830 6698 E-mail: sales@ehawke.com

World leading range of hazardous area and industrial cable glands, providing unrivalled safety

Extensive range of stainless steel Exe enclosures, with global certification options

CABLE GLANDS STAINLESS STEEL ENCLOSURES

Extremely robust anti-static Exe enclosures, providing extreme corrosion and impact resistance

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Singapore Office Hawke International130 Joo Seng Road, #03-02, Olivine Building,Singapore 368357Tel: +65 (6282) 2242Fax: +65 (6284) 4244 E-mail: asia@ehawke.com

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USA Office Hawke International4140 World Houston Parkway, Suite 130, Houston, TX. 77032 USA.Tel: 00 (1) 281 445 7400 Wats: (800) 354 9189Fax: 00 (1) 281 445 7404 E-mail: america@ehawke.com

Complete range of Exd Instrument, Control and Power connectors, allowing for greater flexibility

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OTC_Hawke.indd 27 18/04/2010 21:01

ExIN

STAL

LATIO

NS CERTIFICATION

TRAINING & COMPETENCY

Risk Assessment -& Area Classification

Legacy Equipment - Assessments

Plant Verification & -Inspection

Compliance Support -(including ATEX)

- ATEX- IECEx- IEC 61508- EN13980 Quality

System- Service Facility

(equipment repair)

Training solutions covering Baseefa services, delivered to International audiences in the UK and abroad, plus online personal competency assessment to IECEx guidelines

Helping to make the world saferwww.baseefa.com

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OTC_Baseefa.indd 28 18/04/2010 21:21

The UK’s Premier Marine &Fabrication Company

Major Steel and Aluminium Fabrications

New TYNE Fabrication FacilityTel: +44 (0)191 430 8600

Email: enquiries@ap-group.co.uk www. ap-group.co.uk

IMG Panel Line (13.5*20m)

OTC_AP_Group_Final.indd 29 18/04/2010 21:21

Bedford Opto Technology Limited

30

BedfOrd OpTO TechnOLOgy specialise in the design,development and manufacture of ATEX/IECEx certified Opto Couplers. The current range consists of 3 products;10kv tubular OPI 110/1264 series with phototransistor output and CTR’s of up to 100% minimum at 1mA If; the OPI1000L series phototransistor output giving 40% min CTR at 1mA If in surface mount configu-ration supplied taped and reeled: the OPI2000M with a High Speed Logic output coupled to a high speed IR emitter operating up to 2MHz with very low propagation delays,supplied in surface mount

or through board configuration.A new surface mount ATEX/IECEx coupler, the

OPI5000 is under development that will comply with the Lead Free directive and be compatible

Bedford Opto Technology1 Biggar Business ParkMarket RoadBiggarML12 6FXScotlandT: +44 (0)1899 221221F: +44 (0)1899 221009E: lorna@bot.co.ukW: www.bot.co.uk

BEDFORD OPTO TECHNOLOGY LIMITED

Design, development and manufacture of ATEX certifiedOpto Couplers. Through board or surface mountin tape and reel. High speed logic output. Special selections and lead formsreadily available.

BEDFORD OPTO TECHNOLOGY LTD. 1 BIGGAR BUSINESS PARK, BIGGAR, LANARKSHIRE ML12 6FX TELEPHONE: 01899 221221 FAX: 01899 221009 E-MAIL bill@bot.co.uk www.bot.co.uk

IECEx CERTIFICATIONAPPLIED FOR

SS BOT Plex 23/1/06 3:11 pm Page 1

A new surfAce mount AteX/IeceX coupler, the opI5000 Is under development thAt wIll comply wIth the leAd free dIrectIve And be compAtIble wIth the solderIng temperAtures AssocIAted wIth the chAnges to solderIng processes.

with the soldering temperatures associated with the changes to soldering processes. Samples are available now.All BOT ATEX products meet the RoHS directive and are now IECEx certified.

Luxion type high luminous flux white LED arrays are available to customers requirements, ideal light sources in hazardous environments.

• For further information,data,samples and pricing please contact Bill Stott or Lorna Wyllie on 01899 221221(Ph) or 01899 221009(Fax) or visit our NEW Web site www.bot.co.uk

OTC_BOT.indd 30 18/04/2010 21:23

R&M Electrical Group Limited

R&M Electrical Group LimitedYour source On-shore for everything electrical Off-shore‘ ’

R & M Electrical Group LtdUnit 2, 362A Spring Road, Sholing, Southampton SO19 2PB

Tel: +44 (0) 2380 685668 Fax: +44 (0) 2380 685673 email: sales@rm-electrical.co.ukwww.rm-electrical.com

R & M are extensively involved in supplyingelectrical products for hazardous areaapplications worldwide.

Two R & M Caspian Region Companies aresupporting major oil and gas exploration operatorsin this area.

We are stockists for some of the worldʼs leadingmanufacturers and also assemble populatedHazardous Area Junction Boxes.

To learn more ask for our NEW Information Pack

R&M 1-2 A4 AD:R&M 1/2 A4 AD 2/7/07 15:03 Page 1

31

R & M Electrical Group Ltd(Project and Export Division)Units 1 & 2, 362A Spring SholingSouthampton S019 2PB United Kingdom T: (0)2380 341444F: +44 (0)2380 444366E: info@rm-electrical.comW: www.rm-electrical.com

ThE R&M ELEcTRicAL GRoUP formed in Southampton in 1987 now enjoys an annual turn-over exceeding 40 Million GBP with a combined company stockholding of over 4.5 Million.

The group consists of 6 electrical distribution stocking branches based in Southampton, Portsmouth, Bournemouth, Oxford, Swansea and Neyland. In addition we have 3 specialist divisions incorporating R&M Cables, R&M Fixings and Supports and R&M Assembly Division. Overseas we have branches in Dubai, Azerbaijan and

Kazakhstan. We also have joint venture partners in the USA and Australia. Our head office is based in Southampton along with the Project, Export and Assembly Divisions.

In addition to our core electrical distribution businesses our specialist divisions provide our customers with the opportunity to utilise R&M Electrical Group as a total solution provider covering every aspect of their electrical requirements. Our cable distribution division based in Bristol holds large stocks of power, instrumentation, data and control cables whilst our fixings division based in Southampton is a specialist stockist and supplier of fixings, power tools, pipe supports and cable management and containment products. Both of these businesses operate on a national basis so regardless of your location we can provide next day delivery of products vital to the completion of your project or contract.

We are licensed to assemble in-house hazardous area and industrial junction boxes, control stations and distribution boards for a number of leading manufacturers such as Cooper Ceag Crouse Hinds, Group Schneider, Weidmuller and Dorman Smith and provide excellent lead times and fast turnaround delivery of fully populated and drilled Junction boxes and enclosures and wired and tested LV panel and distribution boards for safe area applications. All equipment supplied by our Assembly division is provided complete with GA Drawings and hazardous area certification if applicable.

R&M are Stockists for some of the World’s Leading Manufacturers, each Branch holds stock

utilising a variety of different manufacturers including large stocks of Flameproof and Hazardous Area Equipment so R&M with its diverse product ranges can supply a solution for all your electrical needs whatever your specific application.

Our Particular strengths lie in the supply of specialist electrical equipment and cable to the Oil, Gas, Petrochem, Industrial & Marine Sectors.. Our Export and Project Division, launched in 1996 specialises in the supply of Electrical Bulk and Cable Packages to major oil, gas and EPC companies for both onshore and offshore applications. We have an extensive track record in supplying projects globally and have successfully exported materials to over 75 Countries worldwide.

Whatever your electrical requirement, however large or small and regardless of your location R&M feel confident that we can meet your needs both competitively and efficiently. Please Phone or Email us for further information and let us show you why we are “Number One in our Field”, alternatively please visit our recently re-launched website on www.rm-electrical.com

OTC_R&M.indd 31 18/04/2010 21:24

Benoil Services - Increasing Your Ability

32

BENOIL SEEKS TO HELP CUSTOMERS in the oilfi eld business by offering an ever-widening range of products, and increasingly services. We have been doing this for the past 25 years and are confi dent we are well placed for the challenges of the future. Originally just producing simple pigs, packers and rollers from tiny premises, we have twice relocated in expansion and now offer some 3000 items across an extended range covering coil tubing, wireline, downhole tools, drilling, casing and tubing products. A constant attempt to develop the best items for customers drives this and we remain customer-led in making new products and improving current ones.

Our greater storage capacity enables us to hold stock of all the most signifi cant products enabling us to respond very quickly to most needs. Our manufacturing support enables early production of additional items. New products come from our design capabilities and our testing facilities. Services include special testing of products for special conditions. Overall, this is designed to offer customers what they want, when they want it, and at acceptable prices.

Innovation is the key to Benoil products. It created the original CT shear pin cementing darts, our fi rst move beyond the simple, and also the improved current forms based on burst discs. Further refi nement means customers can specify their own required pressure values in the later versions. Additional tubing sizes, especially heavily tapered strings, increasingly used on deeper or longer horizontal wells, keep adding to the range. Meanwhile, a newer CT technique - bottom end reverse loading before installation in the well - shows much promise since we developed new reversible cement darts.

Innovation was also required in the development of stripper rubbers with 2-3 times the life of those previously used; these are now standard specifi cation. This was extended to HTHP wells in two stages and a current third stage is in progress to ever higher temperatures (so far to 360F) and wear capability. The knowledge gained has been applied in other areas and certain pipeline and tubing products have benefi ted almost at once. A range of swab cups is one result. A series of tubing fl exible darts is another, and this is also likely to lead to further improvements in the CT cement darts. There is also a real possibility of extending this to improved BOP products, for use as wells

become simultaneously hotter, more sour and at greater pressure. This becomes important too for geothermal operations for which fl uorocarbons are not recommendable.

Benoil’s use of burst disc ideas in cement darts enabled it to respond to other rupture disc enquiries. Again, the innovative approach improved a simple concept (the clamped “tin hat” style) and has created a world-wide standard for welded discs. These have much greater consistency of pressure rating and greater reliability in function, so that it is now possible to carry out controlled operations with a certainty not previously available. Our keeping a wide range of these items available for immediate delivery has been widely appreciated; the oilfi eld does not wait! Benoil also has short lead times when customers require modifi cations for special purposes, and in fact supplies many custom products in this area.

Many standard discs are supplied with a cross-cut drive, valuable, especially for larger discs, as we also make fi tting tools for their safe insertion, but an increasing number of smaller discs are supplied with a hex drive.

Research and development has enabled Benoil to supply discs up to 25,000 psi so far, and tailored for accuracy at particular well temperatures. This remains a growing area of interest and specialised burst disc products are always in demand. These are rarely without development problems and Benoil has assisted several customers to optimise disc and tool design. Many customers fi t discs to their own subs, so Benoil does not seek to compete, but has nonetheless made several special purpose subs when requested. For example, we made a double pump-out sub carrying wide-bore discs, because

the accuracy of discs was so much closer than the shear-pin sub it replaced. This in turn led to a major riser relief system for one operator, while, at the other end of the scale, we produced a chemical injection relief valve, essentially a fi nger-sized sub with built in disc and fi lter.

Developments continue particularly in extending the life of components for subsea assemblies. Several major customer projects will depend on the continuing reliability of parts for extended periods because access for maintenance will be restricted. Naturally, such work is confi dential to the customers involved, but Benoil is making a positive contribution in several areas, including pipeline and tidal energy systems, and continues to seek new opportunities. Our standard disc materials are increasingly being substituted by special corrosion-resistant alloys.

The services aspect of the company lies in several testing programmes carried out at customer request, such as evaluating the effects of repeated cycling on a burst disc. Currently we are looking at the relationship of pressure and temperature on different materials for balls and suitable ball seats. But it also lies in our assistance in helping customers correctly to specify their needs, particularly in the choice of cement darts, or when things go wrong, in tracing causes and gaining understanding in cooperation with them. Thus a ‘failed’ disc in Thailand was shown to have inverted due to sticky tar in a jarring operation, though it had been thought ‘impossible’. There are a good many other instances of discs inverting in vibration systems, and this has led us to propose solutions. A different type of disc failure, still in current evaluation, seems to be due to unexpected abrasion circumstances.

Interestingly, Benoil has been able to tackle problems recently in a wider scope, linking with others in co-operative developments requiring expertise in several fi elds simultaneously, including electrical controls, connections and testing, as well as metal machining and moulding. Taken with its welding and fabrication capabilities, Benoil now offers much more in special development, manufacture and testing.

Could this be useful to you?

Benoil Services LtdKennet Building, Trade St, Woolton Hill, Newbury, RG20 9UJ United KingdomT: +44 (0)1635 253412E: sales@benoil.comW: www.benoil.com

‘RESEARCH AND DEVELOPMENT HAS ENABLED BENOIL TO SUPPLY DISCS UP TO 25,000 PSI SO FAR, AND TAILORED FOR ACCURACY AT PARTICULAR WELL TEMPERATURES. THIS REMAINS A GROWING AREA OF INTEREST AND SPECIALISED BURST DISC PRODUCTS ARE ALWAYS IN DEMAND. ’

Reversible cement dart

OTC_Benoil.indd 32 18/04/2010 21:25

Benoil Services - Increasing Your Ability

Kennet Building, Trade Street, Woolton Hill, Newbury RG20 9UJ, United KingdomContact +44 (0) 1635 253412 E-mail sales@benoil.com www.benoil.com

OTC_Benoil.indd 33 18/04/2010 21:25

Dynamic-Ceramic Limited

Unit 15, Bordon Trading Estate, Bordon, Hampshire GU35 9HH Telephone: 08708 50 90 50 Fax: 08708 50 90 60 www.bowers.co.uk offshore@bowers.co.uk

As exclusive UK distributor, Bowerscan deliver Gagemaker’s

industry-standard thread inspectionproduct range

METROLOGY SOLUTIONS

THAT PERFORM….

Bowers’ range of flexible andadaptable bore gauges areperfect for use in the mostdemanding environments

Partners in Precision

Bowers has launched some great Special Offers acrossits range of Precision Measuring Solutions.

For more information visit www.bowers.co.uk/current-offers

109396_Oil_and_gas_Ad_125x180.qxd:Layout 1 25/6/09 16:14 Page 1

3434

Dynamic-ceramic LimiteD, an innovative manufacturer of world beating ceramic solu-tions is pleased to announce the completion of a substantial investment program that has expanded manufacturing and office facilities by 50%.

“This significant investment will enable us to respond effectively to our customers’ needs,” states Harry Hodgson, Managing Director of Dynamic-Ceramic. “We have invested in the latest grinding and inspection technology which has enabled us to stream-line our production processes and offer even greater levels of customer service.”

Advanced ceramics developed by Dynamic-Ceramic are playing a major role in improving the efficiency of components at oil and gas industry sites around the world. Its “transformation-toughened” Technox® zirconias and other ceramics offer greater resistance to the effects of wear, corrosion, erosion, abrasion and heat than conventional materials such as metallic alloys and polymers. Advanced ceramics are also electrical

insulators and transparent to electromagnetic waves. Typical applications in downhole and oilfield installations include parts in MWD and LWD tools, fluid metering systems, valve plugs, stems, seats, retainers, cages and trims, moveable orifice and ball valves, mud pump nozzles and pistons, and turbo-drill components. Photograph 1 shows a Technox 3000 valve plug after service; note the damage to the steel work but the light polishing of the ceramic. Photograph 2 shows part of an alumina cyclone.

Dynamic-Ceramic, which won the Institute of Materials 2006 Gold Medal, develops products to deal with specific issues of wear and corrosion or electrical or thermal insulation. Ceramic powders are compacted and then shaped using computer numerical control (CNC) machine tools. Firing at high temperatures (above the melting temperatures of most metals) bonds the powder particles together densifying the material and developing the unique combination of high strength, hardness and toughness. Machining of the now ultra-hard material is carried out by diamond grinding, with

finished tolerances of ±1µm being achieved. High degrees of flatness and surface finish are obtained by lapping and diamond polishing.

Wear-resistant Technox® materials are also suitable for oil refinery applications, especially in the highly erosive environment of air grid nozzles within the fluidised catalytic cracking unit (FCCU). A specialised fixing method – patented by Dynamic-Ceramic to solve problems caused by ceramic and steel having different coefficients of thermal expansion – extends the working life of nozzles, providing a more consistent fluidised bed and reducing turnaround costs.

Catalyst withdrawal tubes made from Technox® materials have lasted ten times as long as a refractory liner in the same application, giving a more controllable flow through the discharge port and causing less wear damage to local pipe and valve areas, reports the company. Other components within the FCCU, such as orifice plates and feed injectors, have, it says, also had their performance and service life increased when made from Technox® materials.

According to Managing Director Harry Hodgson, “the number of possible uses of advanced ceramics within the oil and gas industry is unlimited but it is up to companies such as ours to inform engineers and designers of the capabilities of modern advanced ceramics and help them choose the correct ceramic for their particular application”.

Dynamic-ceramic Limitedcrewe Hall enterprise Park, Weston road, crewe cW1 6Ua United Kingdomt: +44 (0)1270 501000F: +44 (0)1270 501423e: sales@dynacer.comW: www.dynacer.com

Photograph 1 Photograph 2

OTC_Dyamic_Ceramic.indd 34 18/04/2010 21:26

Wessington Cryogenics - A World Class Manufacturer of Cryogenic Storage Vessels

35

WeSSington CryogeniCS is a manufac-turer of a broad range of cryogenic storage vessels from small general purpose dewars to multi-coded vessels, bespoke road tankers, custom build trail-ers and 10ft & 20ft ISO framed tanks for the global Oil & Gas Industry.

In 2009 Wessington Cryogenics celebrated its 25th year and during the last 15 years has become recognised amongst the best in the world for quality and reliability, vessel design and manufac-ture. In addition to this, Wessington Cryogenics is able to offer a full tank and frame refurbishment program and re-certification service at its UK fac-tory. Wessington can also offer a vessel repair and testing service (on-site) and is ISO 9001:2000 and ASME registered.

Wessington has proven technical expertise and design capability to build to all current international

standards including: ADR & RID (Transport), PED & TPED, DNV 2.7.1 (Offshore), EN 12079/13530, CSC, IMDG (Container Transport and Mari-time), Worksafe Australia, ASME VIII & US DOT (Transport America). Wessington Cryogenics is also the preferred supplier to many of the major organizations in the Oil & Gas Industry including the international Oilfield Service Companies and cryogenic Tank Rental & Leasing Companies. Many of these companies placing multiple repeat orders for 10ft and 20ft ISO containers – year after year, for delivery into some of the most hostile environments all over the world.

Wessington has made substantial investment in production, training, and the implementation of lean manufacturing techniques in the last two years and with a new 70,000 square ft produc-tion facility have doubled its production capacity, for the standard 10ft ISO offshore tank. This new facility gives us an additional 30,000 square ft (production capacity) allowing the company to take on large scale manufacturing projects and custom designed cryogenic vessels and trailers. The company remains a family run business with the directors having a combined experience of more than 75 years in cryogenic engineering & manufacturing and with more than 80% of its an-nual total production, being exported globally.

In 2008 and 2009 Wessington Cryogenics was recognized for outstanding achievement by a panel

Wessington Cryogenics2 Gadwall RoadRainton Bridge SouthHoughton le SpringTyne & Wear DH4 5NLUnited KingdomT: +44 (0)191 512 0677F: +44 (0)191 512 0745 E: info@wessingtoncryogenics.co.ukW: www.wessingtoncryogenics.co.uk

of industry leading experts and awarded Company of the Year, International Business of the Year and Exporter of the Year by respected independent or-ganizations in the UK. This success has come from continued growth with global partners within the Well Service Industry. The majority of our 10ft and 20ft offshore tanks are being used in coiled tubing, nitrogen pumping and well intervention services by most of the major international operators.

Wessington Cryogenics is a truly international company, but remains strongly committed to its traditional manufacturing routes in the North East of England and is passionate about its people, strong business heritage, and cryogenic manufac-turing expertise…

10ft ISO framed units, 20ft ISO framed units, 2000, 3000, 4000 and 5500 gallon capacity, Dual Certified ISO units, cryogenic road tankers, custom build trailers.

OTC_Wessington.indd 35 18/04/2010 21:28

Cutting Underwater Technologies Ltd

info@cut-group.com www.cut-group.com

Norway Houma USA Aberdeen Group HQ Brazil Norway Houma USA Aberdeen Group HQ Brazil SingaporeSingapore

““TheThe””DiamondDiamond

WireWireSpecialistsSpecialists

OfferingOffering

Any CutAny Cut--

Any WhereAny Where--

Any IndustryAny Industry

Onshore

Offshore Oil & GasOffshore Oil & Gas NuclearNuclear

Bespoke SolutionsBespoke Solutions

3636

DIAMOND WIRE CUTTING is a Technology that has been advanced signifi cantly in recent years. This advancement has been primarily achieved through the pioneering research and development work of CUT’s Italian parent company TS Tecno-spamec based in Genoa.

A Diamond Wire Cutting Machine (DWCM) is a hydraulically activated machine used for cutting subsea and topside structures, pipelines and other industrial plant or equipment of any size, shape or composition.

To achieve the cutting action a continuous loop of diamond impregnated wire is mounted on a number of pulleys, one or more being driven. The span of wire between the front two pulleys will form the ‘cutting-face’ as it comes into contact with the target.

Once located on to the structure that is to be cut, the DWCM uses its own hydraulic clamping system to lock itself into the correct position. All operational functions of the DCWM are powered

and controlled either from the surface, using a stand alone spooler, multi-core umbilical, control panel and hydraulic power unit package, or through the hydraulic supply of a Workclass ROV. Thus the system is 100% safe for the operator who controls the wire speed, working pressure and fl ow rate, for maximum cutting effi ciency, from a remote location.

In 1999 Tecnospamec established the CUT (Cutting Underwater Technologies) Group of companies, headquartered in Aberdeen, Scotland, Their mission? To offer a range of services that utilise the advanced DWCS (Diamond Wire Cutting System) that Tecnospamec had developed. The initial focus for the new technologies was to be the platform and pipeline decommissioning markets, especially in the North Sea region.

Since that time, CUT have expanded globally, with operational branches now established in the United States (Houma, LA), Norway, Singapore and Brazil.

To date CUT have successfully completed over 500 projects, encompassing over 3000 cuts.

2008 and 2009 have seen major decommissioning projects in the North Sea with the award of a number of prestigious contracts which involved CUT operating in both the British and Norwegian sectors. Projects such as: MCP01, Frigg DP1, DP2 & QP, NW Hutton and Ekofi sk all benefi ted from the use of CUT’s advanced technology and methodologies.

CUT’S ability to design, build, and successfully test and deploy bespoke diamond wire cutting machines, has been a major factor in these contract

awards. This capability allows the machines to be confi gured to cut in different positions, confi gurations and angles, all to comply with the client’s particular project requirements. Additionally technological innovations such as “Castellated Cutting” (international patent pending) and the new 60 – 120 inch “Modular Machine” design have cemented CUT’s position as a major player in the decommissioning and abandonment industries.

A major step forward for the CUT Group is the introduction to the decommissioning and wellhead removals markets of the patented Sub Bottom Cutter. This innovative and unique combination of self dredging and Diamond Wire Cutting Technologies allows cuts to be performed to a depth of up to 3 metres below the seabed without the need for the area to be pre-excavated, thus minimising environmental impact.

Currently the machine is having its cutting capability and electronic controls signifi cantly upgraded at CUT’s Aberdeen HQ facility such that the system will be ready for offshore deployment in 2010.

Such technology and fl exibility allows the most effi cient and cost effective methodology to be determined by the project team, leading to signifi cant project fi nancial and time savings.

The CUT Group continues to expand their capabilities seeking, always, to offer enhanced services that will better meet their client’s current and future needs for:

“Any Cut ... Any Time … Any Where”.

Cutting Underwater Technologies LtdCUT HQ, Aberdeen Science and Energy ParkClaymore Drive, Bridge of DonAberdeenAB23 8GDScotlandT: +44 (0)1224 222950 F: +44 (0)1224 826006 E: info@cut-group.com W: www.cut-group.com

OTC_CuttingUnderwater.indd 36 18/04/2010 21:45

• Worried about seeing in hazardous locations?

• Worried about the risks of man entry?

• Worried about downtime?

Equipment Rental, Contracting or Project Engineering - Inspectahirehas flexible solutions. Using our inspection technology we can findthe weak spots, and reduce the safety and cost worries.

Discover how at www.inspectahire.com/oilandgas

“Making a Visible Difference”

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ENERGY OIL & GAS PHARMACEUTICALS PETROLEUM RETAIL PROCESS INDUSTRIES PHYSICAL ASSETS

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OTC_Inspectahire.indd 37 18/04/2010 21:43

OTC_Sonar.indd 38 19/04/2010 10:52

Sonar Equipment Services specialize in the rental, sales and manufacture of leading marine survey equipment for the global offshore industry.

Our mission is to provide our customers with a competitive edge by providing cost effective solutions and services with fl exibility and support along the way.

Offering over 50 years combined experience, the SES engineering and sales team provides the highest level of customer focussed support around the clock from project planning to completion.

With extensive technical and manufacturing expertise in the fi eld of sidescan sonar and sub-bottom profi lers, SES has been providing innovative engineering solutions to the Oil and Gas Industry, Construction Industry and Renewable Energy Sector for over 15 years.

Continued investment in the rental pool offers our customers the latest survey equipment to support offshore and near-shore operations.

E: enquiry@sonar-equipment.comW: www.sonarequipmentservices.co.uk

Units 3 & 4 Enterprise Court, Gapton Hall, Great Yarmouth,

Norfolk NR31 0ND

SONAR EQUIPMENT SERVICES LTD

Tel: 01493 443363Fax: 01493 443387

OTC_Sonar.indd 39 19/04/2010 10:52

Our service also includes Offshore Site Surveys and Turnaround/Shutdown

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OTC_Ross.indd 40 18/04/2010 21:47

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REX THE HEAT EXCHANGER PEOPLE.

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Heat Exchangers, Coolers, Radiators and Plate Packs.offshore, for most types of

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Ross Offshore has over thirty

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OTC_Ross.indd 41 18/04/2010 21:47

Oil & Gas Industry Lifted by Increased CAPEX in Asia Pacific Participation at OSEA2010 sets new record high as companies step up operations in Asia

4242

Singapore, 9 March 2010 – The global oil and gas sector capital expenditure in 2010 is project-ed to see a hike of 12 per cent and the total capex of the leading listed oil and gas companies is expected to exceed US$798 billion. With the majority of the oil and gas discoveries made last year happening in the Asia Pacific (35 per cent), the bulk of the exploration and production investment in the coming years is likely to be spent in this region.

Oil and gas companies from across the globe have signaled their intentions to increase their business footprint in Asia with their unprecedented participation in one of the top industry events in the world. OSEA2010, the largest oil and gas exhibition and conference in the Asia Pacific region, continues its strong growth on this industry backing and will feature 1,500 companies over 22,600 square metres of space at Suntec Singapore when it returns for its 18th showing from 30 November to 3 December this year.

Attendees to OSEA2010 are expected to hail from 60 countries and regions and will be looking to cater to demand for exploration and production operations across the regions of the Pacific, Southeast Asia and the Indian Ocean. Singapore is the largest oil and gas supply base and technology hub in the region, accounting for 70 per cent of global market share for floaters/rigs for instance. The island state is an ideal focal point for industry professionals, business leaders and government officials to congregate. The previous edition of OSEA attracted over 20,000 attendees and

represents the largest industry gathering east of the Middle East and West of Houston.

The rise in the 2010 capex activity is driven mainly by large National Oil Companies (NOCs). The total capital expenditure by the listed NOCs is expected

to register a 16 per cent growth to around $375 billion. OSEA2010 will be key business networking arena for companies looking to gain headway with NOCs, as well as IOCs, in the region. Exxon Mobil, PetroChina, CNOOC, PNOC, Timor Leste & MIGAS are amongst the invited NOCs and IOCs slated to have a strong presence at the event.

”As the economy recovers and crude oil and natural gas prices stablise, we expect exploration and development activities, particular in the Asia Pacific Offshore regions, to increase,” said Mr. BT Tee, Project Director of OSEA at Singapore Exhibition Services (SES). “OSEA2010 provides an efficacious platform for the global oil and gas community to network, source for the latest technologies for prospecting to production and share market insights, right in the heart of Asia.”

The OSEA2010 International Conference will be held concurrently with the exhibition and will feature an array of topics and panel discussions from the areas of exploration to production, and gas technology and recovery. The conference this year will see the debut of a high-level OSEA Leaders’ Summit and the Offshore O&G Communications Conference. Delegates can expect the 2010 conference to once again bring together leading experts and professionals to deliberate the pertinent issues and technologies shaping the industry.

More information is available at www.osea-asia.com.

‘Attendees to oseA2010 Are expected to hAil from 60 countries And regions And will be looking to cAter to demAnd for explorAtion And production operAtions Across the regions of the pAcific, southeAst AsiA And the indiAn oceAn. singApore is the lArgest oil And gAs supply bAse And technology hub in the region, Ac-counting for 70 per cent of globAl mArket shAre for floAters/rigs for instAnce.’

OSEA.indd 42 18/04/2010 21:49

OSEA.indd 43 18/04/2010 21:49

Seatrax Pedestal Cranes

Global Approvals Simplified by Sira & CSA

4444

Seatrax haS eStabliShed a reputation across the globe for excellence and innovation, pioneer-ing many of the technologies and designs that are now standard in the offshore crane industry. As the leader in deepwater lifting instal-lations, Seatrax is un-rivalled in its ability to provide safe, cost-effective, easily maintained and high quality offshore cranes.

To serve customers better, our professional engineers are constantly breaking new ground in technological advances, making us leaders in marine

offshore crane production. Seatrax’s numerous U.S. and international patents are testimony to its success and proficiency in engineering, safety and manufacturing, with each Seatrax crane based upon its state-of-the-art kingpost concept and configured to meet each client’s specific needs.

Seatrax cranes are in service worldwide on semi-submersibles, jack-ups, tension leg platforms, SPAR facilities, drillships, FPSO’s, fixed platforms and quayside locations, demonstrating its expertise and continued focus on providing a product that remains unmatched in quality , reliability and superiority.

With crane manufacturing facilities in Houston, Texas,

Louisiana and Great Yarmouth, Seatrax provides its clients in the worlds oil, gas and marine industries with excellant delivery options and continuous technical service and support on a 24/7 basis.

in July 2009, leading ATEX Noti-fied Body, Sira Certification, was acquired by CSA International, part of the CSA Group, a world-leading certification provider.

The acquisition brought together two leading approvals businesses creating an offering that had a global reach, enabling manufactur-ers of Ex equipment to market their products on an international scale, using combined approval schemes whilst enjoying quicker lead times to market.

As part of the CSA Group, Sira forms part of an International conformity assessment company with a £100M turnover, over 1400 employees and a network of offices

Seatrax uK limitedGreat yarmouth, uKt: +44 (0)1493 651311e: sales@seatrax.co.ukW: www.seatrax.co.uk Seatrax inc.houston, uSat: +1 713 896 6500e: seatrax@seatrax.comW: www.seatrax.com

Sira test & Certification limitedrake lane ecclestonCheshire Ch4 9Jnunited Kingdomt: +44 (0)1244 670900t: +44 (0)1244 681330e: info@siracertification.comW: www.siracertification.com

Sira, the principal UK ATEX Notified Body, is delighted to announce its recent acquisition by CSA International, the testing and certification division of the CSA Group.

This enables Sira to build on its position as one of the world’s foremost certification businesses for both the European ATEX and International IECEx certification schemes, and together we form the world’s leading IECEx certification provider.

ATEX & IECEx ProductCertification

International Approvals

IEC 61508 Functional Safety

ATEX Training & PersonnelCompetence Scheme

Ex QA NotificationTel: +44 (0) 1244 670 900Fax: +44 (0) 1244 681 330Email: info@siracertification.comWeb: www.siracertification.com

Wherever your organisation is based, Sira can provide a fast and effective route intointernational marketplaces. Sira’s range oftechnical agreements enables manufacturersto market their products on a global scale, including the following countries:

• Australia • Brazil • Canada • China • Japan • Russia • South Africa • South Korea • U.S.A.

These agreements enable Sira to carry out tests and assessments required to meet the standards set by particular overseas national bodies and by requesting additional international certification early in the project, there can be significant savings in both cost and timescale.

a CSA International company

SIRA_CSA_A4port_Ad 23-09-09:SIRA AD A4 PORT 23/11/05 25/9/09 11:20 Page 1

and laboratories in 60 countries. Sira now has access to expertise and testing/certification facili-ties specialising in environmental, hazardous location and safe area products.

Sira continues to offer all its existing services under the same respected brand, which is synony-mous with responsiveness, techni-cal excellence and innovation.

SirA And CSA in 2010Customers of Sira will see a much more streamlined approach to European and North American approvals, and an expansion of the services that Sira offers. With an enhanced international presence, and a brand further strengthened by our association with CSA, Sira’s clients will enjoy a number of benefits that, in turn, will help to promote their products in a global market.Sira’s ability to offer a ‘value for money’ service has been recog-nised by its clients, and project timescales on average of around 70 days show that Sira doesn’t just ‘talk the talk’.

How doeS tHiS ACquiSition benefit you, tHe CuStomer?Existing Sira clients, and manufacturers of Ex products can all benefit from the CSA/Sira partnership. Sira now provides a truly global certification service, providing the most compre-hensive range of international approval schemes that enhance the marketability of our clients’ products. Key benefitS ➤ Combined Global Approvals (European, North American & International) ➤ Quicker lead time to international marketplaces ➤ Enhanced technical knowledge – access to specialists around the world allows Sira to stay at the forefront of innovation and technical excellence with respect to certification principles ➤ Increased service offering - put simply, Sira now offers the most comprehensive range of ‘Ex’ related services than any other certification body

➤ Together we form the world’s leading IECEx certification provider wHAt ServiCeS doeS tHe ACquiSition Provide?Sira’s acquisition means that clients can reduce the time to market and the associated costs of this by a combined approach of using the range of Sira/CSA services to deliver their products on time and on budget: ➤ ATEX Product Certification➤ IECEx Product Certification➤ CSA Certification➤ Auditing aspects in the above principles ➤ Ordinary Locations assessments➤ Gas detector performance testing ➤ IEC 61508 Functional Safety➤ Management Systems Certification ➤ Training and Competence Emissions Monitoring Certification (MCERTS) International product approvals schemes including: Australia, Brazil, China, Japan, Russia, South Africa, South Korea & USA

OTC_Seatrax.indd 44 20/04/2010 12:21

Sira, the principal UK ATEX Notified Body, is delighted to announce its recent acquisition by CSA International, the testing and certification division of the CSA Group.

This enables Sira to build on its position as one of the world’s foremost certification businesses for both the European ATEX and International IECEx certification schemes, and together we form the world’s leading IECEx certification provider.

ATEX & IECEx ProductCertification

International Approvals

IEC 61508 Functional Safety

ATEX Training & PersonnelCompetence Scheme

Ex QA NotificationTel: +44 (0) 1244 670 900Fax: +44 (0) 1244 681 330Email: info@siracertification.comWeb: www.siracertification.com

Wherever your organisation is based, Sira can provide a fast and effective route intointernational marketplaces. Sira’s range oftechnical agreements enables manufacturersto market their products on a global scale, including the following countries:

• Australia • Brazil • Canada • China • Japan • Russia • South Africa • South Korea • U.S.A.

These agreements enable Sira to carry out tests and assessments required to meet the standards set by particular overseas national bodies and by requesting additional international certification early in the project, there can be significant savings in both cost and timescale.

a CSA International company

SIRA_CSA_A4port_Ad 23-09-09:SIRA AD A4 PORT 23/11/05 25/9/09 11:20 Page 1

OTC_Seatrax.indd 45 20/04/2010 12:21

HEAD OFFICE : sales@adcomtec.co.uk Tel : 00 44 (0) 8707 576664 www.adcomtec.co.ukU.S. OFFICE : sales@adcomtec-us.com Tel : 713 780 3997 www.adcomtec-us.com

Contact us for your local stockist

OTC_ADV_&_Cengar_&_Rotaflow.indd 46 20/04/2010 12:21

Tel: +44 (0)1803 869292E Mail: sales@valeport.co.uk Web: www.valeport.co.uk

The UK’s leading manufacturer of hydrographic and oceanographic instrumentation.

• Tide Gauges

• Wave Recorders

• Current Meters

• Echo Sounders & Bathymetry

• Sound Velocity

• Ocean Engineering

• CTD & Multiparameter

OffshoreReview_Valeport.indd 47 18/04/2010 22:17

A silent Killer? The dangers of occupational benzene exposure

4848

Concateno1A Harbour Quay 100 Preston’s Road London E14 9PHUnited KingdomT: +44 (0)20 7712 8000E: maritime@concateno.comW: www.concateno.com

ARE yoU ExPosEd To BEnzEnE? The chances are very likely, especially if you work in the petrochemical industry. The dangers of benzene have been realised for a long time now, but it is becoming more apparent that we may have not fully recognised the true extent of the threat. The risks involved through long term, low level benzene exposure are still not fully known, but the increase in the occurrence of serious diseases of the blood, including leukaemia, in those exposed is sufficient to cause concern.

There are numerous scientific studies looking at benzene exposure, from Canadian petroleum industry employees to Chinese chemical production workers, from Scandinavian seafarers on oil tankers to British coke oven operators. The question preoccupying the scientific community is no longer “is benzene causing illness?” It has become “how is benzene causing this range of illnesses?”

So what is benzene? Benzene is a naturally occurring chemical present in crude oil and, therefore, petroleum and refined gas. There are entire industries utilising benzene as a starting material to build products, most notably polymers and plastics, although drugs, pesticides and lubricants can also be derived from this useful molecule.

However, benzene is a hazardous, toxic chemical with mutagenic properties, which means it can damage the DNA. Occupational exposure can produce a range of diseases, including leukemia and a decrease in white blood cells, which help the body to fight infections. Benzene damages the bone marrow and can cause a decrease in red blood cells, leading to anemia. It can also cause excessive bleeding. Benzene is a carcinogen and is associated with cancers and pre-cancers of the blood.

Benzene targets the liver, kidneys, lungs, the heart and the brain. Short term exposure to low levels can irritate

eyes, cause drowsiness, dizziness, rapid heart rate, headaches, tremors, confusion and in some cases unconsciousness. Exposure to high concentrations can result in death. It is mostly ingested into the body by inhalation, but can also be absorbed through the skin.

Human exposure to benzene is a global health problem. As with so many dangerous chemicals, the problems were realised quite late, however the regulations concerned with the exposure to benzene have become increasingly stringent over the last few years. Controls are issued by a number of bodies, including the United States environmental protection agency and the Health and Safety Executive in the UK.

An awareness of these dangers within the workforce and taking the necessary precautions will dramatically reduce the chances of these harmful effects. It is essential to follow procedure and protocol, such as wearing the correct personal protective equipment, and ensure that care is taken when working in environments where exposure is possible. Health and safety guidelines state that an exposure below 1ppm of benzene over an 8 hour time period is safe. In order to assess whether employees are being exposed to unsafe levels, regular monitoring should be carried out.

One method involves analysing biological samples to check exposure levels. A urine sample can be easily analysed for specific metabolites of benzene. Regular testing of employees in positions where benzene exposure is possible will verify that exposure levels are within recommended limits and that the safety measures imposed by the company are fit for purpose.

Concateno offers benzene testing using urine samples in addition to our range of drug and alcohol services currently employed by the shipping, oil and petrochemical industries.

Concateno’s Graham Birch explains: “The advantage of this test is its simplicity – everything you need to carry out the test is provided, including the necessary bio-packaging for ready dispatch to the laboratory. Analysis takes a few hours and the results can be faxed or emailed within two days of receipt.”

“The Concateno test is for a benzene specific biomarker, S-PMA, and will help employers assess and monitor not only the health of their employees who may be exposed to benzene, but will also help to check and to measure the effectiveness of their company’s health and safety procedures.” said Mr. Birch.

“Our network of staff across all the major shipping routes and international petrochemical locations, along with the self-test kits, allows companies to benefit from easy access to this top-rated benzene exposure biomonitoring service.”

Such testing is starting to prove useful, Norwegian shipping company, Seatrans AS, are utilising the service to monitor the potential exposure of its seafaring crew to benzene.

Concateno will establish and implement an effective programme to test and monitor benzene levels among crew members and assess the risk of exposure onboard Seatrans vessels.

Erik Mohn, crew manager at Seatrans, says “the health and safety of our employees is paramount and we must ensure that every sensible precaution is taken to avoid risks. Without the services of Concateno’s biomonitoring testing, risks of benzene exposure are invisible and impossible to identify. This new procedure allows us to rapidly screen at-risk individuals to ensure our operations are safe. Benzene monitoring onboard our vessels will enhance our strict health and safety procedures and help to confirm the effectiveness of our safety procedures.”

Increasing awareness and implementing measures to protect workers and regular monitoring for exposure can ensure that, although we cannot eliminate benzene from certain environments, we can reduce the chances of needlessly developing preventable diseases.

• To find out more please contact us:E: maritime@concateno.com

OTC_Concateno_Medscreen.indd 48 18/04/2010 22:16

Tel: +44 (0)1803 869292E Mail: sales@valeport.co.uk Web: www.valeport.co.uk

The UK’s leading manufacturer of hydrographic and oceanographic instrumentation.

• Tide Gauges

• Wave Recorders

• Current Meters

• Echo Sounders & Bathymetry

• Sound Velocity

• Ocean Engineering

• CTD & Multiparameter

OffshoreReview_Valeport.indd 47 18/04/2010 22:17

Turner Explosion Protection Systems

5050

FLAMETEC LTD HAVING BEEN A MEMBER of the Turner Group for the past 12 years, we recently changed names from Flametec Ltd to Turner Explosion protection systems as part of the newly formed Turner EPS Group within the Turner Group of Companies.

FlameTec Ltd commenced trading as Turner Explosion Protection Systems (Turner EPS) a trading division of Turner Engine Powered Services Ltd as from February 2010. The company is and remains wholly owned by Turner & Co. (Glasgow) Ltd. The name change reflects improvements within the business to better allow us to serve our customers by encompassing the broader skills of the Turner Group companies formerly known as Turner Diesel Ltd, Tilsley and Lovatt Ltd, Turner Engine Controls and FlameTec Ltd.

Collectively we will be known as Turner EPS.

Address and Telephone / Fax numbers remain the same. Existing Email addresses will remain the open for the foreseeable future. New email addresses are issued to individuals under the new format with general or specific enquiries to be directed to tepsystems@turner-eps.co.uk

Only the name of the business, The VAT number and the company registration numbers will change. We remain at the same address as the heading above and we will continue to trade from that address. Our new company registration number is Reg. No 26728 registered in Scotland.

We would be grateful if you would bear with us during this transition from old to new name and be assured that any orders received will be dealt with efficiently and expeditiously.

Turner Explosion Protection Systems (Turner EPS) Design & Manufacturer Flame / Explosion Protection Systems.

Incorporated in our 3G PAC® Engine Packages they feature Exhaust Gas Cooling, Exhaust Flame Traps (Flame Arrestors) and Ex Rated Electrical Control & Safety Shutoff Systems and optionally 3G AIR® (Advanced Infra-Red) self-powered stand-alone fail-safe Gas Detection Systems.

Our Explosion Protected Systems are fully

Turner Explosion Protection SystemsNewstead Trading EstateTrenthamStoke on TrentST4 8HTUnited KingdomT: +44(0) 1782 657331F: +44(0) 1782 644600E: Tepsystems@turner-eps.co.ukW: www.turner-eps.co.uk

integrated for use in the Offshore Oil & Gas Industries, Well Servicing,

Pump/Compressor Drivers and Generating Sets for a wide range of various makes / models of engines selected for their suitably and compatibility for Hazardous Area applications.

Turner Explosion Protection Systems 3G PAC® Diesel Engine Packages are all Explosion Tested with verification from reputable third party test house.

The 3G PAC® is available for open self-ventilated or IP56 enclosure installations primarily to conform to EN1834-1:2000, designation Ex II 3G Ex d e nA IIA or IIB T3.

Alternative configuration with pressurised enclosure arrangements designed to EN/IEC 60079-2:2007 for Ex II 3G Ex d nA nC pz IIA or IIB T3 Gc designations are also available.

Our 3G PAC® Diesel Engines and Generating Sets are for use in Zone 2 Hazardous Areas Offshore and Onshore World Wide, for operations in potentially flammable and explosive gaseous atmospheres.Equipment compliance is provided as standard as per the requirements of Annex II, VII & VIII of the European Directive 94/9/EC (ATEX 95) with optional Annex IX Unit Verification by Notified Body for 3G equipment.

Limited selection of 2G PAC® engines also available as per Annex III & VII.

OTC_Flametec_Rev2.indd 50 20/04/2010 12:10

Deep Casing Tools

51

time and signifi cantly reducing risk. The Turborunner™ delivers the same results with all completion systems. The Turboblade™ is the best-in-class solid centralizer providing maximum turbulence for a cleaner borehole and excellent stand-off, both of which result in better cementation. These tools deliver increased reliability and effective performance for the most demanding well bore and completion scenarios, including highly deviated or horizontal wells, and screen or ICD completions.

Deep Casing Tools is a dynamic independent engineering company providing precision well construction technologies to the oil & gas industry, with a successful track record in the North Sea, Europe and Middle East. Deep Casing Tools received a Smart Award in 2007, a BP industry endorsement in 2008 and a special commendation from the Offshore Industry in 2010.

Deep Casing Tools: Innovative tools to target depth: OTC Booth 2363-3

Deep Casing ToolsSuite 3Riverside Business CentreNorth Esplanade WestAberdeenAB11 5RJScotlandT: + 44 (0)1224 572070F: + 44 (0)1224 572030E: sales@deepcasingtools.comW: www.deepcasingtools.com

‘THE TURBOCASER™ IS A DRILL-THRU CASING LANDING SYSTEM, SUITABLE FOR ALL RIGS AND CASING STRINGS.’

DEEP CASING TOOLS, based in Aberdeen, Scotland, has a range of innovative technology that delivers major benefi ts in the construction of oil and gas wells, and geothermal wells. The company provides a range of equipment designed to ensure fi rst time casing and liner placement and better cementation.

The Turbocaser™ is a drill-thru casing landing system, suitable for all rigs and casing strings. It is independently powered and avoids the need to rotate the casing, saving

OTC_Futuretec_Rev.indd 51 20/04/2010 12:11

The Need For Subsea Leak Detection

52

NepTuNe OceaNOgraphicS LTD is a global leader in the field of detection of leaks from subsea pipelines, risers and control systems and has made, and continues to make, significant technical advances in this field.

Neptune has developed several new leak detection systems based on fluorometric, acoustic, differential temperature, MEG and direct hydrocarbon detection techniques.

FLuOrOmeTryIn the past detecting subsea pipeline leaks has relied on ‘black light’ (unfiltered ultraviolet light) to visually detect leaked fluorescent dyes either by diver or underwater camera, however, this method is very inefficient and relies on high dye concentrations and optimum visibility and tidal flow conditions for any chance of success. More recently, deploying submersible ‘tuned’ fluorometers that send data up to the attendant vessel providing a real time visual display has largely solved these problems. These submersible fluorometers are capable of measuring concentration levels thus allowing the operator to ‘home in’ on the highest values found at the leak source. They are very sensitive and will detect dye at concentration so low as to be invisible to the naked eye or underwater camera. However, with normal submersible fluorometers spatial coverage is poor and the dye has to be in contact before it is detected.

To overcome the problem of spatial coverage and the need for dye contact with the fluorometer, Neptune Oceanographics has developed a family of ‘Long Ranger’ leak detection systems that detect tracer dyes remotely.

The ‘Long Ranger’ sensors have forward facing ‘tuned’ light sources (like torches) producing beams of excitation light. The fluoresced light generated by leaking fluid is detected by the sensor without the need for contact. Because the sensors have high spatial coverage and long range, quick and easy scanning for leaks is achieved without needing to consider tidal flow direction to ‘capture’ dye.

The latest versions of Neptune’s ‘Long Ranger’ leak detection sensors have the potential to detect leaking fluorescent dyes and crude oil, etc. at distances of up to 20m.

Other significant advantages of the ‘Long Ranger’ include the detection of leaks from risers while working at safe operating distances and detecting leaks within confined structures such as manifolds where ROV access is not possible or too hazardous.

For many years the fluorescent dye typically used for leak detection has been Fluorescein, however, this is being phased out of general use as it no longer complies with the latest legislation for discharges at sea. Other tracers such as Castrol’s SPF, Champion Clear Dye and other clear UV dyes, MacDermid’s Oceanic range of fluids, Rhodamine, Roemex’s 9022 red dye, etc., have been tested to demonstrate their compliance with the latest

legislation and are now widely used. Neptune’s family of ‘Long Ranger’ fluorescent leak detection sensors are capable of detecting these dyes and by deploying the UV version can detect crude oil, lubricating oil and hydrocarbon based control fluids such as Castrol’s Brayco fluid.

acOuSTicSHydrophones are effectively underwater microphones that can be tuned to ‘listen’ for ultrasounds generated by fluids leaking under pressure. For small leaks these leak generated signals tend to be at frequencies well above the audible range, i.e. above 20kHz, thus requiring sophisticated sensors and software to reliably determine the difference between leak generated and ambient ‘noise’. The major problems with this method are the sounds caused by the attendant (ROV) and other vessels in the vicinity.

In collaboration with Aquatec Group, Neptune Oceanographics have produced an acoustic leak detection sensor that incorporates a directional hydrophone with a high pass filter that significantly reduces the effects of non leak generated sounds. The sensors have been tuned to respond in the range of frequencies known to be emitted by high pressure leaks through small apertures.

Acoustic signals are sent to an onboard PC via an ROV umbilical or diver cable where acoustic intensity is displayed graphically and also recorded for later playback.

Typical applications are detection of leaks of gas from subsea installations, locating fluid leaks from buried pipelines and from pipe within pipe configurations. More recently, Neptune Oceanographics supplied a modified acoustic detection system complete with acoustic modem that successfully monitored the opening and closing of a large control valve during pipeline maintenance and replacement operations.

DirecT DeTecTiON OF hyDrOcarbONSHydrocarbons in liquid form such as crude oil can be detected using a ‘Long Ranger’ leak detector, however, a different method is required for gas. A direct reading hydrocarbon sensor has been added to the range of Neptune Oceanographics leak detection systems. This sensor is essentially a methane detector but it is equally a general hydrocarbon detector that will respond to most hydrocarbons, however, the potential for oil contamination on the sensors membrane make it less suitable for oil detection but good for gas detection. The very high sensitivity of the sensor also makes it ideal for the detection of gas leakages, gas in trapped in structure voids, seepage from the seabed, etc.

DirecT DeTecTiON OF mONO eThyLeNe gLycOL (meg)A new addition to Neptune’s subsea leak detection capability is a MEG (Mono ethylene glycol) sensor. This sensor detects leaks of MEG from the subsea systems without the need to add tracer dye. By eliminating tracer dye, leak detection can be accomplished with no additional environmental downside.

DiFFereNTiaL TemperaTure meaSuremeNTSUnder some circumstances such as with water injection flow lines, leaks can be identified using the temperature difference between the surrounding seawater and the water leaking from the flowline. The flowline water temperature is normally above ambient seawater temperature due to the high pressure pumping required. Neptune has developed a differential temperature technique that can detect very small temperature changes. The sensors comprise fast, high precision thermistors connected through the Neptune leak detection system to the ROV umbilical for onboard display and recording.

The 2 channel on-board PC displays data as a colour time series plot in real time allowing the operator to easily see changes in signal that indicate the presence of a leak. The software also allows the user record data and set alarm levels.

OTher NewSDuring 2006 Neptune Oceanographics formed a strategic alliance with Aberdeen based Dynamic Positioning Services (DPS) who provide full workshop facilities, equipment deployment, technical expertise and experienced offshore engineers to support Neptune’s global leak detection operations.

Neptune’s growing list of agents includes established companies in:- Norway, Singapore, Houston, India and UAE

Neptune Oceanographics Ltd Sapharey House, Sturt Road, Charlbury, Oxon OX7 3SX, United KingdomT: +44 (0)8453 707177F: +44 (0)8704 581979E: chris@neptune.gb.comW: www.neptune.gb.com

‘NeptuNe OceaNOgraphics Ltd is a gLObaL Leader iN the fieLd Of detectiON Of Leaks frOm subsea pipeLiNes, risers aNd cONtrOL systems.’

Long Range Sensor: Two blue excitation light beams are visible. Fluoresced light produced by the dye shows as a green cloud at the leak location. Tracer dye is Fluorescein. Leak detection system output is graphically displayed on the onboard PC.

Typical screen display

OTC_Neptune_Edit.indd 52 19/04/2010 09:33

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