sphl emergency evacuation and rescue procedures (3) (2)

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DSV SHADDAD

Hyperbaric Evacuation and Rescue

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Contents 1 Summary ......................................................................................................................................... 3

2 GLOSSARY ........................................................................................................................................ 4

3 Self-Propelled Hyperbaric Lifeboat ................................................................................................. 6

4 Mobile Life Support Package (MLSP) .............................................................................................. 6

5 Manufacturer, Description and Specifications ............................................................................... 6

6 Procedure of Transferring Divers to SPHL....................................................................................... 8

7 Transfer unconscious diver from Saturation Living Chambers to SPHL .......................................... 9

8 SPHL Launching and Recovery Procedures ..................................................................................... 9

9 SPHL Recovery ............................................................................................................................... 10

10 Procedures for SPHL Connection to Mobile Life Support Package on Halul Island .................. 11

11 SPHL As a self-sufficient unit once landed. ............................................................................... 13

11.1 Electric chiller .................................................................................................................... 14

11.2 Hydraulic chiller ................................................................................................................ 14

11.3 Heaters and pumps ........................................................................................................... 14

11.4 Onboard chiller controls ................................................................................................... 15

11.5 Climate control board ....................................................................................................... 16

11.6 Climate control panel ........................................................................................................ 17

11.7 Main engine and emergency generator start procedures. ............................................... 18

11.8 Main engine start procedure. ........................................................................................... 18

11.1 Emergency generator start procedure. ............................................................................ 19

12 SPHL Photographs ..................................................................................................................... 20

13 General Arrangement of Hyperbaric Lifeboat .......................................................................... 21

14 BOAT HANDLING INSTRUCTIONS FOR CREW. SEE DIAGRAM BELOW ...................................... 23

15 Towing Arrangement ................................................................................................................ 25

16 Single Point Lifting Arrangement .............................................................................................. 26

17 Diving Bell and Living Chambers Technical Overview ............................................................... 27

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1 Summary

Diving work, by its very nature, can sometimes place the diver in situations that have inherent and unavoidable dangers. Even when using the best diving system, vessel and equipment manned by properly trained and competent personnel, the possibility of an emergency still exists. Emergencies require prompt, corrective action to rectify and prevent further worsening of the situation. Halul Offshore Services Company has emergency procedures in place for both Surface Supplied and Saturation Diving Operations. These procedures describe the fundamental steps required to be taken during emergencies and the personnel responsible for the corrective actions. This document goes past what can be termed as foreseeable emergencies to extreme circumstances where emergency procedures and operations for launching the Self Propelled Hyperbaric Lifeboat (SPHL) or Diving Bell have not been possible due to massive structural damage, fire, massive flooding or capsizing of the DSV Shaddad, or where the designated personnel are unable to carry out the emergency procedures in time. During such emergencies, the Diving Bell or the SPHL are recoverable. The Bell and the SPHL have a gas supply to preserve life for a minimum of 72 hours. There are many known cases in the diving industry where rescue by the diving team or even another vessel have been carried out successfully. The purpose of this document is to provide the relevant information for a diving intervention team or vessel to plan and execute a successful rescue.

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2 GLOSSARY

BIBS Built in Breathing System

CFM Cubic Feet per Minute

CO2 Carbon Dioxide

CO Carbon Monoxide

CV Control Valve

DDC Deck/Diver Decompression Chamber

DP Dynamic Positioning

DSV Diving Support Vessel

EPIRB Emergency Position Indicating Radio Beacon

ECS Environmental Control System

EL Entry Lock

He Helium

HeO2 Mixture of Helium and Oxygen

HP High Pressure

HOSC Halul Offshore Services Company

HW Hot Water

ID Internal Diameter

IMCA International Marine Contractors Association

JSA Job Safety Analysis

LARS Launch and Recovery System

LP Low Pressure

LPM Litres per Minute

LSS Life Support Supervisor

LST Life Support Technician

MSW Metres of Seawater

NDT Non Destructive Testing

OBG Onboard Gas

O2 Oxygen

OD Outside Diameter

PP Partial Pressure

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PRR Pressure Reducing Regulator

QP Qatar Petroleum

REV Revision

ROV Remote Operated Vehicle

S/B Stand-by

SCM Standard Cubic Metres

SCMH Standard Cubic Metres per Hour

SDC Submersible Decompression Chamber (Diving Bell)

SPHL Self-Propelled Hyperbaric Lifeboat

SPT Sound Powered Telephone

SWL Safe Working Load

TWC Through Water Communications

U/W Underwater

The DSV Shaddad is a class 2 dynamically positioned multi-purpose dive support vessel. The Shaddad is currently working offshore in Qatar. Owned by Halul Offshore Services Co. and leased by Qatar Petroleum. The vessel offers the following Services:

a. Saturation dive support capable of supporting divers up to 300 metres water depth

b. Air dive support for shallow dive work (Max 50m)

c. Subsea Construction, Inspection and Survey

d. ROV support

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3 Self-Propelled Hyperbaric Lifeboat

The SPHL is located on the Port side of the vessel, secured on a davit between the Accomodation-1 and Upper Forecastle Deck. The SPHL is used to evacuate the divers under pressure from the Saturation Chambers and maintain all life support functions for a maximum of eighteen divers for a duration of 72 hours. The SPHL is connected to entry lock-3 via trunking. All other Saturation Chambers are connected via transfer trunkings. The divers can simultaneously transfer into the SPHL when the saturation diving living chambers are held at the same pressure. The SPHL is launched by the use of a davit.

4 Mobile Life Support Package (MLSP)

The SPHL is supported by a Mobile Life Support Package (MLSP) that is held on Halul 41. The MLSP provides extended life support over the 72 hour built-in capability of the SPHL. The MLSP is containerized with the following facilities:

(1) Gas management manifold for the distribution of gases from quads held with the package to the SPHL.

(2) Power supply management system for the provision of mains power to the

MLSP and transformed down power to the SPHL. (3) Chilling and heating systems including circulation pump, to compliment and

supplement the onboard SPHL systems. (4) Storage of soda sorb and other consumables inside the SPHL required to

support an extended saturation decompression.

5 Manufacturer, Description and Specifications

Manufacturer

(1) Hull. Oceanwide S.a.S. "Rotterdam, The Netherlands (2) Hyperbaric Chamber. Hyperbaric Manufacturing BV (HYTECH) "Raamsdonksveer, The Netherlands" (3) Year of Manufacture: 2010 (4) Design Codes:

(a) Chapter III of the International Convention for the Safety of Life at Sea, 1974, as amended."

(b) The International Life Saving Appliance (LSA) code, MSC

48(66), Chapter IV, Section 4.4, 4.6, 4.8, & 4.9 and Chapter V." (c) Resolution MSC.81(70) revised recommendation on testing of

Life Saving Appliances Part 1, Chapter 6."

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(d) IMO Resolution A.692(17) ""Guidelines and specifications for hyperbaric evacuation systems"

(e) NORSOK standard for "Manned Underwater Operations" (f) NMD red book requirements.

Description

(1) Totally enclosed hyperbaric lifeboat. (2) Fire protected with self-contained air support system. (3) DNV ID Number: P10657 (4) DNV Certificate Number: ROT-09-6041-1. Issued 10/09/2010.

Specifications

(1) Hull Designation: HLB1050/18 (2) Hull Serial Number: Hull No. 80 (3) Length: 10.50 m (4) Breadth: 3.35 m (5) Depth: 1.28 m (6) Weight of boat, fully equipped: 16150 kg (7) Weight of boat, fully manned 75 kg: 17800 kg (8) Hook manufacturer & type MadRock: LockRoc 12" (9) Hook SWL: 12000 kg (10) Hull material: GRP (11) Propulsion system: Inboard engine (12) Engine manufacturer and type: Steyr MO144M38 106kW (13) Bollard pull: 5.2 kN (14) Approved engine power: 106 kW (15) Maximum number of persons 75 kg: 18 divers and 4 crew (16) Maximum load of persons 75 kg: 1650 kg (17) Emergency beacon EPIRB - McMurdo E5 Serial No. 100-22654

(a) Frequencies: 121.5 MHz and 406 MHz (18) Hyperbaric Chamber Diver Decompression Vessel 2009082-01

(a) Volume: 12.0 m (b) Design pressure: 31.4 Bar (c) Test pressure: 47.1 Bar (d) Hyperbaric Fire Extinguisher: 80 Litres.

Serial No. 09.020 (19) Design ambient temperatures:

(a) Inner system: From -10 C to +55 C (b) Outer system: From -10 C to +55 C

(20) 6 x Nos. Heliox 50 litre cylinders:

(a) Maximum working pressure: 200 Bar (b) Test pressure: 450 Bar

(21) 5 x Nos. Oxygen 50 litre cylinders:

(a) Maximum working pressure: 200 Bar (b) Test pressure: 450 Bar

(22) 1 x No. FIFI cylinder 30 Litres: Serial No. 08330

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The SPHL is located on the port side of the vessel on the Accomodation-01 and Upper Forecastle Deck. The SPHL is connected to a davit with the RocLoc 12TM Release Mechanism system. The SPHL is connected to entry lock-3 via trunking.

6 Procedure of Transferring Divers to SPHL

a. DDC-4 occupants (if occupied) must preferably be the first to transfer to EL-3

as Top Door 17 lowers against door 16, impeding access to EL-3 for DDC-4 occupants, securing door 16 behind them. (IF NOT AT DEEPEST DEPTH DIVERS WILL BE BLOWN DOWN AT A RATE NOT TO EXCEED 40FSW PER MINUTE USING BOTTOM MIX TO DEPTH OF EL-3).

b. DDC-4 occupants on hearing call to make way through to SPHL for Vessel Abandonment, transfer into EL-3, securing door 20 behind them and setting equalization valves as per markings on door. i.e. NC normally closed, NO normally open

c. Inform Sat Control ready to lower top door 17. LSS will establish that hydraulic pressure is on door 17 and instruct divers to take the dogs off door 17. When divers have confirmed dogs off, door 17 will be lowered and ladder put in place. First man (Dedicated Internal Supervisor) climbs up trunk and enters SPHL and commences checks that lights, scrubbers are working and scrubber canisters in place. Confirm communications working with LSS in Sat Control.

d. DDC-3 occupants make their way through to EL-3, closing door 14 behind them and setting equalization valves as per markings on them.

e. DDC-1 and DDC-2 occupants will follow as soon as instructed to by LSS that EL-3 is clear, closing doors as above behind them.

f. Last man leaving EL-3 to climb into SPHL trunk must lower the ladder to EL-3 and instruct the LSS to raise door 17, informs LSS in Sat Control when closed and dogged. LSS will over-pressurise EL-3 10 FSW over trunk depth. (If waiting for the Bell to return then this may be delayed). Last man then climbs up and into SPHL and the bottom door is secured in closed position.

g. SPHL Internal Supervisor will then inform Sat Control Bottom door closed and ready to go for seal. LSS will then over pressurise the SPHL by 5fsw and confirm seal with SPHL Internal Supervisor. LSS will then decompress the SPHL trunk 10 fsw and observe that seal is good. At this point all occupants of SPHL must strap into their seats and prepare for launch.

h. After LSS in Sat Control is content that the seal is good between the trunk and the SPHL he will open the SPHL trunk exhaust fully and he will inform Launch Supervisor that seal is good and the trunk may be surfaced through the local exhaust at the clamp. Control of launch is then handed over to the launch supervisor. Communications will then be taken over by the LSS stationed in the cabin, between SPHL occupants and the SPHL cabin.

i. Control of SPHL Chamber gas, depth and temperature parameters is then controlled by the LSS in the SPHL cabin.

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7 Transfer unconscious diver from Saturation Living Chambers to SPHL

a. When notice is given that an evacuation of the Saturation system to the SPHL is imminent and there is an unconscious diver in the system, that diver must be transferred to the nearest chamber to EL-3 i.e. EL-2, DDC-3, but not DDC-4 as when door 16 is lowered access to EL-3 from EL-4 is limited by this door being in the way. If already in DDC-4 then he will be moved to EL-3.

b. In the meantime the SPHL trunk will be equalized with El-3 and the top door lowered. At least 2 divers, called Diver 1+2 (dependent on the amount in the system at the time) shall climb up into the SPHL and secure the SPHL lower hatch open with the latch.

c. Diver 3 will climb up to the first bend in the SPHL trunk to assist with guiding the rope down to EL-3 and then guiding up with the stretcher.

d. Remaining divers will transport the unconscious diver onto the dedicated stretcher and strap him in also ensuring that the head and neck are immobilized.

e. Divers 1+2 in SPHL will lower the Masdam rope down through the trunk to EL3 where diver 4 will attached this securely to the head end of the stretcher.

f. Unconscious diver will now be raised up into and through the trunk assisted by diver 4 at his feet and diver 3 in front who will guide the front end of the stretcher so as to avoid the stretcher becoming fouled on a trunk ladder.

g. Unconscious diver on stretcher will then be placed on the port seats and held in place there while the remaining divers exit EL3 to the SPHL.

h. When the final diver is in the SPHL the SPHL bottom door will be secured and a seal obtained.

i. Unconscious diver on stretcher will be placed on the floor of the SPHL between port and starboard seats while the vessel is launched.

j. After launch the Patient will be attended to by the onboard DMT as required.

8 SPHL Launching and Recovery Procedures

SPHL Launching

SPHL launch to be conducted on instruction from Master or Superintendent.

Note: The Off-shift dive team is designated as the SPHL Launch team. Their muster station is to be on the Upper forecastle deck around the SPHL.

a. Automatic Launch Procedure

(1) Once all divers are in the SPHL and over pressured from the trunking then the trunk may be vented to surface. This will be conducted under the supervision of the on shift LSS.

(2) SPHL Coxswain and Deputy will prepare the vessel for launch. The off-shift LSS and one other will board the SPHL and prepare for launch.

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(3) 1 x diver will disconnect the SPHL to vessel connections.

(4) 1 x diver will remove the securing wires by releasing the pelican clip under the SPHL.

b. Automatic Launch Procedure

(1) On confirmation that the mating clamp is completely vented; Open the clamp fully.

(2) Confirm that the interlock lever has been fully activated allowing the hydraulic pump to be started.

(3) The Coxswain can start the engine as soon as possible to confirm operational. The engine can run for 5 minutes without cooling water.

(4) On the instruction to launch and confirmation from the deck crew that the SPHL is clear to launch the Coxswain may begin to manually launch using the two cables.

(5) PULL CABLE 1 (RED) and hold down. This activates the accumulator hydraulics, lifts the SPHL from its cradle and booms it out clear of the port side of the vessel.

(6) Once the booms are fully extended the coxswain will PULL CABLE 2 (YELLOW). This will activate the controlled decent and allow the SPHL to lower itself to the water.

(7) The Hydrostatic release mechanism can be activated and the SPHL is to be driven away from the vessel to a clear and safe distance.

(8) Once the SPHL is launched then the Launch team is to report to their designated Life boat muster station.

9 SPHL Recovery

Note: The SPHL is designed to be lifted on its bridle lifting points in a swell less than 2m.

a. The bowman & stern man to confirm that the lifting hooks are in position. Insert the safety pins (Blue Pins)

b. Winch driver to switch on power to the pump and then switch on the pump itself.

c. Lower the wires to allow the tenders to attach the lifting rings.

d. Confirm that both rings are in and secured.

e. Winch operator to slowly take the weight of the SPHL.

f. Lift the SPHL clear of the water and stop.

g. Crews inside the SPHL Cabin are to open the drain plugs and allow any water in the bilges to drain. Re-secure drain plugs.

h. All personnel should exit the SPHL before it is lifted to the deck.

i. Winch operator to lift the SPHL to its cradle and land it into its cradle.

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j. Winch operator is to ensure that the rope tension pistons are fully extended before turning off the hydraulics, making the system ready for the next launch.

k. Once in position and instructed to do so, dive crew to close clamp and secure the sea fastenings.

l. LST will attach all the vessel feed lines to the SPHL.

m. Control of the SPHL is then handed over to the LSS.

10 Procedures for SPHL Connection to Mobile Life Support Package on Halul Island

a. The designated personnel on Halul Island/Halul 41 to ensure that the Life

Support Container is in a state of readiness and good order to connect to SPHL in case of an emergency. Also ensure all the quads are in good order and pressure readings taken once every week.

b. Ensure power is connected to the life support container and to chiller

compressor unit for the cooling system of the SPHL. Start the chiller unit, check all the parameters and ensure it is running correctly and standby for the imminent arrival of the Shaddad SPHL

c. Once the Shaddad SPHL arrives at Halul Island/Halul 41, it will be lifted and

placed on a supporting cradle close to the life support container. (this will require a crane that can lift 20 ton and a cradle that will clear the bottom of the SPHL from the ground/deck by 1.5 meters) Ensure that the SPHL is secure using strong points and then connect all the umbilical hoses to the respective connectors on the outside of the life support container. The end fittings are quick-connect for easy operation and connection. (Please see attached Flypack Control Package)

d. The LSS will attach the helium and oxygen HP hoses stored in container and connect the following:

(1) 16% quad to the panel on the life support container (2) 2% quad to the panel on the life support container (3) O2 quad to panel on the life support container (4) Should the need of commencing a deco arise, the therapeutic quads should be ready for immediate connection to the panel. (5) Blowdown line to left hand side panel in life support container (6) Exhaust line to left hand side panel in life support container (7) Pneumo/Depth line to left hand side panel in life support container (8) Analysis line to left hand side panel in life support container (9) Power line to local power mains (10) Cooling water hoses to local chiller compressor (11) Connect comms box to the local power mains (12) Connect O2 analyzer to local power mains (13) Connect CO2 analyzer to local power mains

e. Connect all hoses to the external penetrator fixing panel on the SPHL f. Ensure that all is on line, all analyzers, communications, chillers are working

correctly and pressure gauges reading correctly

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g. Dive Tech will ensure the power source reaching the life support container is

kept constant. h. Dive Tech will look after the chiller compressor unit and ensure it is running

smoothly for the SPHL cooling. i. The designated personnel on Halul Island should start the chiller compressor

at least once every two months to make sure it is kept in good working order.

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11 SPHL As a self-sufficient unit once landed.

The SPHL supports the Chamber well when it is in the water. Once arrived at a safe haven then the LSP should be prepped to take the SPHL and then simply supply the necessary delivery to enable the unit to continue working when on the stand.

This is achieved by simply supplying the SPHL with a constant water supply to its intakes, allowing all onboard systems to remain functioning. In order for the electric controls, the chamber scrubbers and lights, and electric onboard chiller/heaters to remain functioning, either the onboard emergency generator must be running, or an external 230Vac, 50/60Hz, 16Amp electrical supply must be provided, plugged in to the SPHL penetrator plate (fig1 & 2). The 230Vac change-over switch will have to be set to the correct powersource. (fig 3.) This 230Vac needs to remain switched on as long as there are occupants inside the living chamber of the SPHL as its also supplying the battery chargers for the onboard CO2 scrubbers and other life support equipment!

Fig 1. SPHL penetrator plate.

Fig 2. SPHL penetrator plate 230VAC connection.

Fig 3. 230Vac change-over switch. Two x Blue water drums are kept in the LSP shack. These are to act as header tanks for the water supply. Kept inside the SPHL (along the port side) are the hoses and fittings for the intake connections. Using a fire hose from Halul 41 to constantly feed the header tanks this will allow all onboard systems to be run as if the unit were still in the water. Generator, Main engine, Hydraulic chiller and electrical chiller can all then be run as normal.

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The Top side unit can be connected as a back up to these, Note: The LSP chiller unit can only be run as an independent unit, as the onboard systems are open circuit and will drain the system through the SPHL overboard dumps. The Gas supply can be connected as above and used either directly or as a top up to the onboard bottles. This will be at the discretion of the LSS. Do not lift the SPHL out of the water until all services are ready.

11.1 Electric chiller

Under normal circumstances the electric chiller would be used for the supply of chilled water to the chamber. For the electrical supply to this chiller either a shore supply can be used, which plugs into a 3 pin female connector(fig 2.) on the penetrator plate of the SPHL (fig 1.), or the SPHL onboard emergency generator can be used to supply the electrical power. The required supply is 220-240Vac 50/60Hz, 16Amp. A cooling water hose needs to be connected to the generator cooling water supply connection when the generator is used. The electric chiller will require a cooling water hose to be connected to its condenser inlet water connector.

11.2 Hydraulic chiller

When the electrical chiller is not available, the hydraulic chiller can be used to supply chilled water to the chamber. In order to be able to run the hydraulic chiller, the main engine needs to be started in order to supply the hydraulic power to the hydraulic chiller. A cooling water hose needs to be connected to the main engine cooling water supply connection when the main engine is used. The hydraulic chiller will require a cooling water hose to be connected to its condenser inlet water connector.

11.3 Heaters and pumps

The heaters can be switched on from the climate control board (Fig. 9)

The chilled water and hot water circulating pumps can be switched on from the 12 & 24Vdc

distribution board

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SPHL external cooling water connections;

Fig 4. Port stern cooling water connections

Fig 5. Starboard stern cooling water connections.

Fig 6. Starboard bow cooling water connection.

11.4 Onboard chiller controls

When an external heater/chiller is connected, the 4 change-over valves on the aft starboard

bulkhead will all need to be in the horizontal position, when using the onboard electric or hydraulic

chiller, theses valves need to be in the vertical position.

Fig 7. Heating/cooling change-over valves (shown in external heater/chiller configuration).

Hydraulic chiller

condenser inlet

Electric chiller

condenser inlet

Emergency

generator cooling

water inlet

Main engine

cooling water

inlet

Internal / external change-over valves

(Shown in the external chiller

position) Change to horizontal

position when internal chillers are

used!

Chiller / heater

control solenoid

valves

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The chiller/heaters supply circuitbreakers need to be switched on in the 12/24Vdc distribution board

situated on the port aft bulkhead inside the SPHL. (Fig. 8), the essential breakers to switch on are;

Main switch 24Vdc, heating system circ. Pump, control panel, electric chiller, hydraulic chiller.

Fig 8. 12 & 24Vdc distribution board.

11.5 Climate control board

Once 24Vdc power is supplied to the control circuit, the climate control board (Fig. 9) becomes

active, and chillers and heaters can then be switched on from there.

There are manual override switches which can be used to individually switch on equipment in case

of a climate control board failure

Fig 9. Climate control board.

Manual override

switches

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11.6 Climate control panel

The actual temperature of the living chamber of the SPHL is controlled from the climate control

panel (Fig. 10).

Under normal circumstances the temperature control selectorswitch is set to the auto position.

In this position the chiller and heater solenoid valves (Fig. 7) are automatically controlled to maintain

the inside temperature to the desired setpoint, as set on the temperature controller.

Fig 10. Climate control panel.

The temperature control setpoint can be adjusted on the temperature controller (Fig 11.)

To access the setpoint press once, then modify the setpoint with the and keys.

Once the desired setpoint is set, press the again to enter the new setpoint, and return to the

main screen again.

Fig 11. Temperature controller.

Temperature control

selectorswitch

Temperature

controller

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11.7 Main engine and emergency generator start procedures.

Fig 12. Cockpit dashboard.

11.8 Main engine start procedure.

When the hydraulic chiller is to be used, the main engine needs to be run in order to supply the

hydraulic power to the chiller.

A cooling water hose needs to be connected to the main engine cooling water supply connection.

To start the main engine, depress the button on the main engine control panel (Fig 13)

which is situated on the Cockpit dashboard, and then press . Ensure the safety lanyard

switch is engaged!

Fig 13. Main engine control panel.

Safety lanyard switch.

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11.1 Emergency generator start procedure.

When the electric chiller is to be used, the emergency generator needs to be run in order to supply

the electrical power, unless a shore power is supplied through the penetrator plate, see Fig. 2

Fig 14. Emergency generator.

To be able to start the generator, first ensure that the battery isolator switch is on, this switch is

located on the forward starboard bulkhead near the emergency generator.

Fig 15. Emergency generator control panel.

To start the generator, briefly press the button on the emergency generator control panel

which is situated on the Cockpit dashboard.

Emergency generator

Emergency generator

battery isolator switch

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12 SPHL Photographs

Towing Bridle Centre Lifting Bridle

Emergency Gas, Water and Electrical Connection Panel

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13 General Arrangement of Hyperbaric Lifeboat

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Saturation Diving System and SPHL

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14 BOAT HANDLING INSTRUCTIONS FOR CREW. SEE DIAGRAM BELOW

a. Procedure for tanker lifeboats in case of fire.

(1) Check remote control of brake wire is fed through (2) Be sure hanging off-pendant is disconnected (3) Check painter is connected to the painter release hook (4) Enter the lifeboat, close entrance hatches and fasten the seat belts (5) Check starting of the engine (Batt 1 & Batt 2). Stop the engine (6) Open the compressed air bottle valves (7) Be sure the sea inlet valves is always open (8) Open valve of the waterspray system (9) Close ventilation hatch (10) Lower the boat by pulling the remote control wire of the brake When the boat is waterborn. (11) Open the main valve of the air supply (12) Start engine using Batt 1 or Batt 2 (13) Release lifting hooks (14) Release painter

b. Procedure for lifeboats in case there is no fire. (1) Check remote control of brake wire is fed through (2) Be sure hanging off-painter is disconnected (3) Check painter is connected to the painter release hook (4) Enter the lifeboat, close entrance hatches and fasten the seat belts (5) Check starting of the engine (Batt 1 or Batt 2). Stop the engine (6) Lower the boat by pulling the remote control wire of the brake When the boat is waterborn. (7) Release lifting hooks (8) Release painter

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Boat Handling Instructions

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15 Towing Arrangement

a. 75m Dynema Line 12T SWL stored inside the boat b. Release the steel wire from the attachment on deck c. Attach the aft end of the Dynema Line at the shackle of the steel wire d. Attach the Orange Buoy at the fwd end of the Dynema Line OR make contact

with the towing vessel by means of a line throwing device e. Give the 75m Dynema Line in a controlled way

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16 Single Point Lifting Arrangement

The diagram below describes the various components of the Single Point Lifting arrangement for the SPHL.

a. 1 x Hoisting ring for chain, dia. 22mm, SWL 21.2t. TWN 0831 size 22-8 b. 2 x Chain shackle for chain dia. 20mm, SWL 12.5t. TWN 0829 size 20-8 c. 2 x Chain dia. 20mm, L = 4.0m, SWL 12.5t. Make Thiel size 20 d. 2 x Chain shackle for chain dia. 20mm, SWL 12.5t. TWN 0829 size 20-8 e. 2 x H-Shackle, green pin SWL 17t

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17 Diving Bell and Living Chambers Technical Overview

General

The vessel is equipped with a saturation dive system designed for use in water

depths up to 300 metres and supporting up to 18 divers in saturation. The system is

comprised of:

(1) Combined Air and Sat Diving Control Room

(2) Surface Compression Chambers, DDC 1 to 4

(3) Bell Launch and Recovery System

(4) Diving Bell

(5) Bell Handling System

(6) Life Support Control

(7) Diver Heating System

(8) Diver Gas Reclaim

(9) Chamber Gas Reclaim and Purification

(10) Gas Management System

(11) Air Dive Decompression System

Diving System The Saturation Chambers and Saturation Control Room are situated on the Tween deck of the vessel. The Diving Bell handling system is located on the main deck and the SPHL is located on the port side between the Accomodation-01 and Upper Forecastle Deck. The saturation system is comprised of four twin lock Decompression Chambers and a Diving Bell. The Diving Bell is deployed through the moon pool which is situated in the after part of the diving area amidships on the centre line of the vessel. The Saturation system is designed to accommodate eighteen divers under compression at any one time. Hyperbaric rescue facilities are provided to evacuate two teams of six divers and two teams of three divers at the same pressure level. The Diving Bell is handled by an overhead trolley arrangement and deployed through the moon pool. The operating system is designed to handle the Bell up to a maximum heave of 3 meters.

Diving Bell The Submersible Diving Chamber (SDC) or more commonly known as the Diving Bell has an internal volume of 6.30m3 and is capable of supporting 3 divers. The purpose of the Diving Bell is to transfer the divers to and from the worksite while under pressure. The Diving Bell also provides onboard gas and life support equipment in case of a diving emergency.

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Bell Winch

The Bell Winch is located in the moon pool area and is capable of raising the combined mass of the Bell and the cursor, and deploying the Bell through the moon pool, leaving the cursor on the stops at the bottom of the cursor rails. The Bell can be deployed and recovered to a maximum depth of 300msw.

Clump Weight and Guide Wire System

The purpose of the clump weight is to allow the bell to be lowered to the correct working position and preventing it from rotating. In an emergency it is possible to recover the bell into the cursor by using the Clump Weight as a secondary recovery system.

Umbilical Winch

The umbilical winch is used to deploy and recover the main umbilical. The winch maintains a constant tension during launch and recovery operations

Transfer Trolley and Cursor

The transfer trolley runs on an overhead gantry system and is used to traverse the bell to the moon-pool from the entry lock-3 trunking. The cursor is a frame work which fits closely around the Bell. It guides the Bell through the moon-pool during launch and recovery. Air Dive Stations

The Air Dive Control is located in a common room with Saturation Dive Control on the starboard side amidships. The system consists of four dive baskets, two on the port side and two on the starboard side, along with their respective Launch and Recovery Systems. There are two twin lock chambers located in a compartment on the port side of the vessel on the main deck.

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Diving Bell Specifications

MANUFACTURER LEXMAR ENGINEERING YEAR OF MANUFACTURE 2009 SERIAL NUMBER LME-00-530 TYPE

300M

WEIGHT ON SURFACE

11.74 TONNES

BELL ON BOARD GAS

8 X 50L HEO2 BOTTLES 1X 50L O2 BOTTLE

EMERGENCY TRANSPONDER SONAR DYNE AODC

THROUGH WATER COMMS

OCEAN TECHNOLOGY STX-1015B

POWER SUPPLY 24V BATTERY BELL EMERGENCY LIFTING POINTS

2 x 40mm DIAMETER HOLES

BOTTOM DOOR MATING FACE 800mm INSIDE DIAMETER

Emergency Gas, Water and Electrical Connection Panel

Diving Bell Manufacturers Plate Diving Bell Emergency Lifting Points

Diving Bell Mating Clamp

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Bell External General Arrangement

sphl emergency evacuation and rescue procedures (3) (2)

Documents

sphl recovery

sphl connection

sphl photographs

recovery procedures

main engine

emergency generator

electric chiller

hydraulic chiller