Diving Procedures(uncontrolled).pdf

QUALITY MANAGEMENT SYSTEM

QM - LEVEL 3

Engineering Projects Manual REV.NO: 01/JUL14

1. Diving Procedure ITEM: 1.00 PAGE:

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Engineering Projects Manual

QM Level 3

1.1 Scope

The purpose of this procedure is to provide guidelines to perform diving operations, and present the minimum acceptable diving safety procedures to be employed in commercial diving operations.

1.2 Responsibility It is the responsibility of the Project Manager to ensure the following;

- The overall organizing of the underwater diving operation including inspection, survey,

diving and ROV equipments.

- Initiating action to prevent the occurrence of any non-conformance related to the process and EDC Quality Management System.

1. PTW for diving operations. 2. Risk Assessment for diving operations. 3. ERP for diving operations. 4. Rescue Plan is in place. 5. Check divers are in the approved list and their log books are updated. 6. Check equipment certificate of conformity and calibration certificates. 7. Ensure that EDC procedures are fully implemented. 8. Rescue Drill to be executed before diving operations start. 9. Ensure that standby divers are ready all time and good communication methods are in

place.

- Co-ordinating and scheduling activities of the underwater operation.

- Co-ordinating preparation of relevant input and documents from the Contractor.

- Co-ordinating overall planning of inspection, survey, diving & ROV resources.

- Administering the Contractor time frame agreements.

- Assisting in Emergency situations upon request of the Emergency Response Team

leader/Focal Point. - Having access to the yearly planning to assist in making maximum use of the available

resources. - Status of sea condition and weather.


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It is the responsibility of the OIM to ensure the following; - Ensure that all the above requirements are in place prior starting the task. - Ensure that EDC Safety Management System is implemented and all hazards are

addressed in the SJA, Pre-Job Safety Meeting and PTW.

- Exercise the response of the crew members by conducting the essential rescue drill before starting diving operations.

1.3 Procedure

It is highly recommended to have divers consultant from EDC to Supervise the job. Any Diver who has a cold, sinus infection, hearing problems or any other physical or mental problem that may interfere with his ability to perform his assigned task under water in a safe manner shall inform the person in charge and shall not be allowed to dive until he can dive in a safe manner. Any Diver that is taking medicine for any reason shall the person in charge of the type of medicine and what it is used for. On all diving operations, a standby Diver shall be dressed and be on deck ready to dive at immediate notice in case of emergency. All concerned diving personnel must be briefed in the course of action to be taken in case of emergency. Job planning with the Divers is essential to ensure a smooth operation. Tool Box Meetings shall be held at the start of each shift and whenever a new task or a new procedure needs to be discussed. The work scope for the diving operations needs to be agreed on and shall be known by all involved personnel, including where people will be placed both in the water and out of the water. Approved Diver List (IMCA or ADCI) is essential to be submitted prior to starting each diving operation, divers certificates shall be reviewed and submitted before joining the Rig.

Rescue Plans needs to be agreed on and known to all involved personnel, Rescue Drill to be performed before commencing operations).

Diving company shall be assessed by QM-HSSE Department prior adding to EDC Vendor Registration.


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1.3.1 Air and Gas Supply Requirements All diving operations shall have minimum two sources of air supply (primary and

secondary). Normally two compressors will be utilized. High-pressure air cylinders are acceptable if adequate regulators are used, volume and flow rates meet Divers needs.

Check oil and fuel levels in the compressor. Make sure compressor loader is set properly and compressor loads and unloads are at designated pressure settings.

Sufficient compressed air must always be available for two emergency dives to the full-intended diving depth as a reserve. This air must be either stored in containers or else supplied from two independent dedicated sources.

Sufficient compressed air must be available to pressurize both chamber locks of the deck decompression chamber to the maximum possible treatment depth in addition to sufficient air to carry out three complete surface decompression cycles. This air must be either stored in containers or else supplied from two independent dedicated sources.

Air intake shall be located away of any exhaust or air pollutant source.

The contents of all storage vessels banks and compressor receivers shall be analysed

onsite at weekly intervals prior recharging.

Reference for the above requirement is IMCA 014 guidelines.

1.3.2 Chambers

A Deck Decompression Chamber shall always be available on site whenever carrying out a diving operation or task.

Check that the chambers are two compartment types. If using surface decompression on

oxygen the main lock shall be blown down to the depth of the first stop and the entry lock left at atmospheric pressure. This will speed-up the operation and contributes to Diver safety. It will also allow the air banks to be left topped-up for emergency use. The chamber shall be situated in a place providing easy access from where the Diver leaves the water and a clear route to the chamber shall be maintained.

Make sure that two independent sources of air supply, (H.P. and L.P air), are available to the chamber.

Have adequate O2 available and on-line. Verify BIBS (Built in Breathing System). operation and check that B.I.B.S. overboard dump valves are operational.

Check Communications.


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Check lighting and heating.

Check O-rings and gaskets.

1.3.3 SCUBA Diving

The use of SCUBA is actively discouraged and it shall not be used if another means of diving e.g. SCUBA replacement or normal surface demand diving can be practically and safety utilized.

SCUBA diving equipment is very limited in its application (see limitations).

3.3.1 Limitations

It has very short endurance at depth. It is extremely difficult to track a free swimmer. There are no communications between the diver and the surface. There is a necessity of two divers in the water on all free swimming operations. A diver equipped with SCUBA cannot carry out any heavy task. SCUBA equipment can only be used for short duration, shallow inspection dives.

3.3.2 Restrictions SCUBA diving shall never be carried be out in a free swimming mode unless there are

two divers working together attached to each other by a buddy line. This buddy line shall never exceed two meters in length and shall be attached to both divers by a method preventing accidental release. When diving in free swimming mode on diver of the pair shall have a surface buoy attached.

SCUBA diver operating alone shall have a surface lifeline attached to him in a manner that prevents accidental release. This surface lifeline shall be attended at all times by a tender at the surface.

No SCUBA diving operation shall take place at night. No SCUBA equipped diver shall carry out any dive to a depth greater than 30 meters.

No SCUBA equipped diver shall carry out a dive of duration requiring decompression.

No SCUBA equipped diver shall carry out a diving operation in current speeds in excess

of 1 knot.

No SCUBA diver shall enter the water in any sea state in excess of Beauport number


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three.

No SCUBA diver shall use equipment charged with any other breathing media than air. No SCUBA in bad visibility.

1.3.4 SCUBA Replacement Diving

SCUBA replacement shall only be used when it is not practical to conduct normal surface diving operations.

Inconvenience is not accepted as a definition of impractical.

3.4.1 Restrictions Depth is restricted to 40 m maximum. SCUBA Replacement System Diving shall not take place in sea states exceeding Beaufort number 4.

SCUBA replacement diving shall not be carried out unless a surfacing diver can be recovered and placed under pressure inside a decompression chamber within a total time of 3.5 minutes. SCUBA replacement diving from small craft should not exceed bottom times that require water decompression stops than 10 ft (2m) main vessel shall be as close as possible but not within 120 ft (37 m) of the inflatable boat/small craft, when the main vessel is underway. SCUBA Replacement System Diving shall not take place using any other breathing media than air.

3.4.2 SCUBA Replacement Divers Equipment in Inflatable Boats The equipment available to SCUBA replacement divers shall consist of but not limited to: - A protective suit. - A Safety Harness. - An umbilical supplied breathing media package. Divers umbilical shall not exceed 50 m

length and standby divers umbilical shall be 4 m Longer. - A band mask or diving helmet of free flow and demand type. - Full two way communication system. - Main supply cylinder 50 litres floodable volume. - A reserve air cylinder assembly of 50 litres floodable volume of such a design that it is

independent of the main umbilical and cannot be depleted by free flow from a severed of leaking umbilical.

- Standby divers apply cylinder (1x50 litre floodable volume). - A Diving Control Panel.


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- A weight belt and weight (The belt to be of the heavy duty equipped with a quick release buckle).

- A Diving Knife. - Fins. - Bailout Cylinders for main and standby diver.

The following supply pressure must be noted on the dive sheet Divers main supply. Standby divers main supply, diver and standby divers bail out pressure.

1.3.5 Surface Demand Diving

3.5.1 Restrictions

Surface demand diving operations using air as the breathing media will not exceed 50 meters. Surface demand diving operations shall not take place in sea states exceeding Beaufort number 4 except in those cases where the diver is called to go to the assistance of another diver of diving support system in distress.

3.5.2 Surface Demand Divers Equipment The Equipment available to and worn by a surface demand diver consists of the following: - A protective suit. - A Safety Harness. - An umbilical supplied breathing media package. The standby divers umbilical shall be 4

m longer than the divers. - A band mask or diving helmet of free flow and demand type. - Full two way communication system. - A reserve air cylinder assembly of such type that is independent of the main umbilical

and cannot be depleted by free flow from a severed of leaking umbilical. - Standby divers apply cylinder (1x50 litre floodable volume). - A Diving Control Panel. - A weight belt and weight (The belt to be of the heavy duty equipped with a quick

release buckle). - A Diving Knife. - Fines Boots (Depending upon the type of diving task).

The following supply pressures must be noted on the dive sheet; - Main and secondary supplies to diver. - Standby divers independent supply. - Divers and standby diver bailout supplies.


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1.3.6 Minimum Manning Levels

The minimum number of persons employed on any SCUBA diving operation will be four (4). One additional person is required when diving in the surface demand role. This minimum team will consist of the following;

3.6.1 SCUBA

- One Supervisor. - Four Qualified Divers.

3.6.2 Surface Demand

- One Superintendent/Supervisor. - Four Qualified Divers.

1.3.7 Divers Equipment

Please refer to Divers Equipment Check List (Appendix A).

1.3.8 Pre Dive

Please refer to Pre Dive Check List (Appendix B).

To be completed pre every dive.

1.3.9 Divers checklist

Please refer to Divers Check List (Appendix C). To be completed by both Diver and Stand by Diver.

1.3.10 Continuous Operations

Please refer to Continuous Operations Check List (Appendix D). To be checked every six hours during continuous operations.


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1.3.11 Diving Station

Stop watch. Diving tables and treatment tables Two radios. Nemo-box. First Aid Kit and Ambu bag. Diving logs. Diving ladder or rigged stage. Display Diving Flag. Secondary means of Diver recovery.

1.3.12 Diving Umbilical Marking

The umbilical shall be marked using the following method:

Umbilical Length Black Tape Ref Tape 5 meters 1 turn 10 meters 1 turn 15 meters 1 turn+ 1 turn 20 meters 2 turns 25 meters 2 turns+ 1 turn 30 meters 3 turns 35 meters 3 turns+ 1 turn 40 meters 4 turns 45 meters 4 turns+ 1 turn 50 meters 1 broad turn 55 meters 1 turn 60 meters 1 turn 65 meters 1 turn+ 70 meters 2 turns 75 meters 2 turns+ 80 meters 3 turns 85 meters 3 turns+ 90 meters 4 turns 95 meters 4 turns+ 100 meters 2 broad turns

Each Divers Umbilical must be secured / tied off at least 5 meters shorter than the distance

of the nearest hazard i.e. thruster or intake. All Divers and Tenders shall be familiar with this Marking System, a chart of the markings shall be displayed at the tending position


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Appendix A - Divers Equipment Check List


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Appendix B - Pre Dive Check List


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Appendix B - Pre Dive Check List (Continued)


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Appendix C - Divers Check List


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Appendix D - Continuous Operations Check List

Documents

Diving Procedures(uncontrolled).pdf