5. hydraulic workover operations
TRANSCRIPT
Nov 2008Nov 2008
Advanced Cementing to Increase Well Productivity
November 12 – 14, 2008
The University of OklahomaNorman, Oklahoma
Nov 2008
New Workover TechniquesSnubbing and Hydraulic Workover
Operations
Nov 2008
Hydraulic Workover Operations
● Snubbing, sometimes referred to as hydraulic work over (HWO) is a method used to run pipe into and pull pipe out of the well both with & without pressures.
Introduction
Nov 2008 What is Snubbing?
● Snubbing: The process of overcoming forces acting against tubulars; by mechanical means. While maintaining well control by an external sealing device (BOP, Rotating Head, Annular, etc…).
● Force > Tubing Weight = Snubbing
Hydraulic Workover Operations
Nov 2008 What is Stripping?
● Stripping: The process of controlling well bore pressure; while running or pulling tubulars.
● Force < Tubing Weight = Stripping
Hydraulic Workover Operations
Nov 2008 Definitions frequently used in
Snubbing/HWO operations
●Snubbing/Stripper Snubbing/Pipe Light Stripping/Pipe Heavy
●Hydraulic Rig Assist●Conventional Unit●Guide Tubes●Stripper Bowl
●Stripper Rams●Safety Rams●Slip Rams●Access Window●Back Pressure Valves● “N” Nipple●Snub
Hydraulic Workover Operations
Nov 2008
The HWO Unit
• The HWO unit provides the pipe handling capabilities needed to move pipe in or out of the wellbore against pressures. The major components typically include:
– Hydraulic jack system with power rotating head
– Pipe guide tubes
– Stationary & traveling slips
– Access window
– Work basket & hydraulic control panels
– Self-contained hydraulic power unit
Nov 2008
The HWO Unit
HES offers a wide range of units to best meet the needs of the customer:
Nov 2008
Snubbing/HWO Unit Selection“Things To Consider”
• Well Conditions• Well Data:
Maximum anticipated surface pressures
PerforationsProduction tubing &
down hole equipment limitations
• Customer’s ObjectiveWill well be entered
through the existing production string?
Will the production string be removed from the wellbore by the use of the unit?
Nov 2008
Selection of the HWO Equipment
• Selection Criteria
– Wellbore Conditions
– Well objectives
– Work string requirements
– Maximum lift & snub loads required
– Minimum restriction in wellbore
Nov 2008
Selection Criteria
– HWO stack arrangement for operation objectives
– Adequate wellhead & surface casing designs for additional loads
– Site space available for HWO operations
– Availability of equipment & experienced personnel
Selection of the HWO Equipment
Nov 2008
1 Maximum load that may need to be lifted: Weight of workstring at maximum planned working depth: = 3.02 lbf/ft X 15,200 ft = 45,904 lbf Maximum pull that may be desirable if workstring got stuck: = 77,500 lbf (80% of the workstring minimum yield rating)
2 Maximum force that may need to be snubbed against: Maximum well pressure X cross sectional area of largest pipe to be snubbed
plus ram friction: = 6,800 psi X 0.785 (1.662- in)2. + est. 5,000lbs ram friction = 19,700 lbf During snubbing through an annular, the snub:
Maximum “allowable” snubbing pressure through the annular X cross sectional area of tool joint + ram friction
3,000 psi X 0.785 (1.927-in)2 + est.. 5,000 friction = 13,700 lbf
Considerations in Selecting the Unit
Nov 2008
● Buoyancy may contribute to lighten the maximum potential lift but is generally considered a safety factor and not used in planning:
● Anytime snub loads are anticipated, guide tubes are required to reduce the ID of the jack
Considerations in Selecting the Unit
Nov 2008
●Special purpose stack arrangements and procedures may be required for situations where severely corroded, collapsed, full of holes, etc.., tubing string have to be stripped out of the well.
Considerations in Selecting Stack Conf.
Nov 2008
Safety Standards for Snubbing Operations
● Personnel safety should always be the primary concern during snubbing operations.
● A daily safety meeting. Prior to the start of the operation each day, should include the work to be done and any related safety precautions.
Nov 2008 Safety Standards for Snubbing
Operations
● There should always be at least two methods for the basket personnel to evacuate the basket in the event of an emergency.
Nov 2008
HRA (Hydraulic Rig Assist)● The HRA combines the best of both worlds. The unit
comes equipped with everything needed to perform the snubbing and stripping operations; while maintaining work over rig speed and efficiency.
● ONE LIFT - ONE FLANGE
● In most applications the Rig Assist can be rigged up and ready to go in less than an hour!
Nov 2008
Performance Specifications
1. 180K & 120K
2. Lift Rating (Hook Load): Self Lift or Equivalent to Rig Hook Capacity
3. Snub Rating: 95,000lbf & 60,000lbf respectively
4. Pressure Limitations: Up to 8,000 psi – with current configured BOP’s, ability to accommodate 15M equip
5. Slips: 125Ton, 250Ton, 500Ton
6. BOP Config: 5M Annular, (3) BOP Rams, Equalizing and Bleed Off loop- all flanged
7. Pipe Handling: Dual Counter Balance Winch System
Nov 2008
Rig Up and Lubricator Limitations● Physically there are no limitations to the rig
up height.
● All BHA dimensions must be known
● All BHA will have to be lubricated in or stripped in. If stripping a BHA is needed; then the OD’s have to be common sized.
● We have means to lubricate in excessively long BHA’s.
● Units come equipped with ALL Necessary Slip Bowls & Power Tongs
Nov 2008
Nov 2008
What makes Halliburton different?Our Telescoping Tube Guide™ allows us to snub tubulars with un-matched safety, speed and assurance. The Telescoping Tube Guide can be used to snub up to 2 7/8” tubing within excess of 8000 psi at surface. No other company any where offers this service with a Rig Assist package.
Nov 2008
HAL-Snub Work Sheet : HWO Supervisor inputs real job data to determine all parts of the activity. Work sheet can be changed at anytime during the job as conditions change. The work sheet contains Halliburton’s exclusive Tubing Buckling diagram.
What makes Halliburton different?
Nov 2008
Tubular Stress Management: : Allows the user to input tubular’s and well conditions prior to the job to determine maximum pipe limits and safety factors. Can be changed real time as conditions change.
What makes Halliburton different?
Nov 2008
Cerberus For Jointed Pipe: : Allows the user to input tubular’s, well conditions and well bore geometry prior to the job to determine maximum pipe limits, hydraulics, drag and foam wash. Can be changed real time as conditions change.
What makes Halliburton different?
Nov 2008 Got Snubbing?? What can it do?
• Pin Point Stimulation ~ Surgi Frac, Delta Stim Sleeve Operation
• Prop Stop Treatment
• Conformance Solutions ~ Water Web, Therma Tek
• Well Control
• Anything a Rig Can do; PLUS doing it under pressure
Nov 2008
Rig Assist with Crane Support Movie
Nov 2008 Next Generation Snubbing Unit currently
under development• Ability to run pipe minimum 60jts per hour• Hydraulic Rotary minimum 3000ft/lbs @
100RPMS• 300K Hook Load• 150K Snub Load• Fully Guided• Rig up times 2 hours or less• Highly Mobile Small Footprint
Next Generation Snubbing
Nov 2008
Nov 2008
Appendix
Nov 2008
Current Market ShareINTERVENTION SERVICES(CT/SLICKLINE/WELL CONTROL/SEWOP)
Major Competitors - Global· BJ Services· Schlumberger
Competitors - Specific Markets· Cudd
Market Share - 1999· HES 27%· Schlumberger 24% · BJ 9%· Cudd 3%· Others 37%
Total market - $777MM
COMPLETION PRODUCTS
Major Competitors - Global· Baker Hughes· Schlumberger· Weatherford
Market Share - 1999· HES 30%· Baker Hughes 30%· Schlumberger 13%· Weatherford 8%· Others 19%
Total market - $1.05B (for products that HES supplies)
Nov 2008
Competitor Strategies - Schlumberger
● CADE Software deployment● Holditch (SIGMA)● Integrate Camco, MI & DS
names with “Schlumberger image”
● Integrate remote data transmission, Shunt Screens and ClearFracTM Fluids for Sand Control package
● New Marine Vessels for Deep Water capabilities
● Client Link
● Invest in Intelligent Completions/Multi-laterals
● Invest in CT operations CT tools, and CT spoolable completions
● Strengthen Camco product line. Acquired Secure oil tools in Canada
● Market total capability in West Africa with SEWOPs (leased)
● Possible Acquisitions:● Sensor Highway or CIDRA
for Fiber Optic Technology
Nov 2008 ● Continue strong
investment in Marketing
● Add Stim Vessel for FracPac capability
● Leverage market perception to move into Frac Pac
● Continue to improve ExcluderTM Screens
● Develop Intelligent Completion offering
● Continue to invest in Intellectual Property
● Integrate Atlas, Western Geophysical and INTEQ
● Reduce inventory and improve pricing to strengthen BVA
● Invest in CT tools and CT drilling technology
● Possible Acquisitions: Sensor Highway or CIDRA
for Fiber Optic Technology BJ or OSCA for pumping
services and FracPac capabilities
Competitor Strategies - Baker
Nov 2008 ● Power Vision
(similar to TIMS)
● Low Cost Provider
● International Expansion
Canada South America
● ViSTARTM Fluids
● High Temp Markets
South Texas
● Strengthen and align its CT services globally
● Possible Acquisitions: Cudd for CT and
Well Control Services
OSCA for pumping services and FracPac capabilities
Competitor Strategies - BJ
Nov 2008
● Continue its aggressive acquisition strategy to buy technology rather than develop
● Fill gaps in its product offerings mainly in Completions and Sand Control
● Integration of multiple business units with focus on product sales and bundling of products
● Low Cost Provider
● Invest in and combine assets to improve Screen sales with expandable screens (Petroline) and commodity screens (Houston Well Screen)
● Maintain perception with HAL, SLB, & BHI that WFT is NOT a direct competitor
● Possible Acquisitions: Smith, TAM, TIW or
Wood Group
Competitor Strategies - Weatherford
Nov 2008
The Future - V2003
Extranet
Virtual HalliburtonGlobal Tech Team:
24/7 Support
Customer#1 Dubai
Customer#6 Norway
Customer#5 London
Customer#3 Angola Customer
#4 Dallas
Customer#2 KL
Provide advice, consulting andother engineering servicesthrough e-mail or live chats.Could be a real-time functionand a training media forRTRS.
24a
Nov 2008
The Future - V2003Real Time Reservoir Solutions
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24b
Nov 2008
CPE PSL Group - H1 Strategy Update
● What’s Different?
● Focus on specific target markets to position as #1
● Improve focus on smaller business lines in PSL Group by managing businesses in four groups of common lines
● Addition of PES and “Smart technology” to CPE technology portfolio
● Added knowledge management and RTO strategies
● Improved marketing and commercialization plans
● Must increase technology and capital spending on CPE as core profit generator for HES 1a