Download doc - Example Workpack for Aod

Workpack No. RBG-WP-06-12345 Rev. D1

Aqua-Dyne Reference Number: AQD-123

Client - Platform

‘Online De-sanding of TBA’

Prepared by: Colin Sherwood, Delivery Manager – On Line Cleaning

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Contents

1. Introduction

2. Scope of Work

3. RBG, Client and Third Party Interface

4. Schedule/Project Plan

5. Site Drawings

6. Materials, Plant & Equipment

7. Personnel

8. HSE Management

8.1 General Considerations8.2 Completed Health, Safety & Environment Questionnaire8.3 Site Specific HAZID/HAZOP Checklist/Screening Study8.4 Toolbox Talks8.5 COSHH Assessments8.6 Manufacturer Material Safety Data Sheets (MSDS)8.7 Generic/Task Based Risk Assessments8.8 Environmental Issues8.9 Waste Disposal

9. Quality Control/Working Procedures

9.1 Operational Procedures9.2 HSEQ Procedures9.3 Inspection Reports9.4 Continuous Improvement9.5 Acceptance Certification

10. Workscope Completion Report

10.1 Worksite Completion Report

11. Appendices

11.1 Original Work Order/Site Instruction (if applicable)11.2 Qualifications11.3 Variations to Work Order (if applicable)11.4 Job Cards11.5 AOD System Operating Procedure

Workpack No. Prepared by: Date Prepared:WKPKNO PRPBY – JBDES, Online Cleaning NQRYDTE

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Workpack Review Approval

Workpack Title Online De-sanding of TBA

Location TBA

Workpack No. RBG-WP-06-12345 Rev. No. D1

DateTechnical Author Approval

Author Name Colin Sherwood

Position Delivery Manager

Signature DateProject Manager / Originator Approval

Author Name

Position

Signature DateHSEQ Approval

Name

Position HSEQ Advisor

Signature DateCommercial Approval YES / NO

Name N/A

Signature Date

Revision No. Document Status

D1 1st Draft – For CommentD2 2nd Draft – Revised & reissued for comment00 Formally Approved for Issue01, 02 etc. Document Revised after Issue


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Workpack Issue Approval

Workpack Title Online De-sanding of TBA

Location

Workpack No. RBG-WP-06-12345 Rev. No. D1

DateTechnical Author Approval

Author Name Colin Sherwood

Position Delivery Manager

Signature DateHSEQ Approval

Author Name

Position HSEQ Advisor

Signature DateClient Issue Approval

Name

Position

Signature Date

Revision No. Document Status

D1 1st Draft – For CommentD2 2nd Draft – Revised & reissued for (a change of workscope)00 Formally Approved for Issue01, 02 etc. Document Revised after Issue


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Amendment Summary

Rev.Status

Date Description of Amendment

D1

Incorporated by :Date :

D2


D3


Rev 1


Rev 2


Rev 3



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Amendment per Section

Section Date Description of Amendment1











Incorporated by :Workpack No. Prepared by: Date Prepared:

WKPKNO PRPBY – JBDES, Online Cleaning NQRYDTE

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Date :












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1. Introduction

1.1 The purpose of this proposal is to provide all the necessary information and details to carry out Online De-sanding Operations using RBG’s Advanced Online De-sander (AOD).

1.2 The identified vessels shall be ‘online’ under production pressure during de-sanding operations and at an operating pressure of 40 barg or less.

The client should have a contingency prepared to shut in the vessel for offline de-sanding operations, should problems occur during online de-sanding operations, such as the following:

- Ineffective single valve isolation- Ineffective valve operation- Unacceptable produced water quality.

1.3 RBG Aqua-Dyne propose to utilise the AOD to remove wastes, in the form of sand and particulate accumulations, from the identified vessel(s) without the need to take the vessel off-line, thus enabling the client to continue production with no reduction in production rate necessary.

1.4 Sand removal equipment comprises: A sand removal package comprising a hydraulic ram and jetting arrangement to

access the separator and allow the safe insertion of an HP water jetting nozzle into the base of the vessel while the separator remains online. This package also allows for the removal of agitated sand from the separator and transport by manifold and hoses to the AOD skid. Safety features include isolation valves and a shear valve assembly to allow disconnection of the AOD system from the separator in the unlikely event of the HP water-jetting nozzle becoming stuck in or when partially withdrawn from, the vessel.

A ‘High Flow’ Jetting Unit to provide the necessary motive force to agitate the sand within the vessel. This unit delivers 320 l/min at 200 bars to the inserted jetting nozzle. This provides agitation / fluidisation of the sand over an approximate 2m radius from the inserted nozzle.

The AOD skid to separate the removed sand, water and oil. The skid reject water is of suitable quality for re-injection to the client vessel by the jetting unit. The water is cooled and filtered prior to re-injection. The reject sand / solids are cleaned and treated to a quality suitable for disposal to sea or as directed by the client.

1.5 During the connection and disconnection of the AOD system to / from the vessel, it is recommended that the Client Area Authority shall be present to oversee this part of the operation, to visually identify and highlight each nozzle and verbally grant authorisation for breaking of integrity. i.e. removal / fitting of blind flanges, valves and / or hoses.

Full PPE will be worn for protection from NORM and / or other identified contamination, and potential leakage during the removal of blind flanges from the vessel drain valves.


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1.6 Fluids removed from the vessel will be treated by the AOD skid to separate sand from produced water; the water will be filtered and pumped to the jetting unit for further agitating the separator sand content.

1.7 The separated sand / waste discharged from the hydrocyclones to the sand collection tank on the AOD skid will be treated to remove hydrocarbon content and disposed of to sea (or as per client instructions) via the pneumatic Scale Reduction Unit.

1.8 As per Ionising Radiation’s Regulations 1999 throughout this document, LSA - Low Specific Activity has been superseded by the term NORM - Naturally Occurring Radioactive Material.


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2. Scope of Work

2.1 Scope of work

The Scope of Work described in this workpack is to perform Online De-sanding of:

TBA

2.2 Personnel Competence

In performing this type of work RBG acknowledges the need for the highest standards of professionalism. Safe practice and procedural adherence are emphasised by all RBG Supervisors with all work being carried out in accordance with RBG Safety Policy, Procedure Manual and in conjunction with Client Local Rules.All RBG personnel will have undergone specific training in the operation of the AOD De-sanding equipment, covering TBRA, Flange Make Up and AOD Skid operation.AOD Team Leaders will be experienced in the operation of the equipment and qualified as Radiological Protection Supervisors (RPS).

2.3 Pre-mobilisation, Equipment and Containerisation Checks

Prior to mobilisation, all specialist equipment will be function tested at our Aberdeen base by our base supervisor. Where applicable, all certification shall be checked and copies given to our onsite AOD Engineer for reference at the worksite.

A copy of all equipment certification shall be passed on to the Client.

On arrival at site a full inventory shall be completed of all equipment mobilised to site by the AOD Team Leader / Engineer.

2.3 Worksite Preparation

All personnel will complete site induction’s and familiarise themselves with the worksite taking into account any site specific hazards that may be encountered, prior to commencing with operations.

All personnel will complete a Tool Box Talk with the AOD Team Leader on site arrival; this shall cover, but not be limited to, the following topics:

a) Objectives (Operation, Environmental & Safety)b) Personnel Responsibilitiesc) Method Statements & Pland) RBG Procedures & Local Rulese) Site & Operation Hazardsf) Conflicting Activitiesg) Chemical COSHH & MSDSh) Risk Assessments & Worksite Evaluation


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i) Equipment safe use & maintenance2.4 Equipment Set-up

Detailed below is the typical equipment layout to be utilised during the forthcoming works. All RBG personnel will be trained in flange make up.

2.4.1 Air Mover

A single air mover is mounted on the AOD skid. This has an independent air supply to ensure optimum ventilation of the sand collection tank in the event that other skid utilities ‘draw down’ the skid supply.

2.4.2 Vessel Tie-in Points

Nozzle tie-in points are highlighted on the client drawings attached to section 5.0 of this document. NORM Contamination and spillage PPE will be worn for the removal of blind flanges from the vessel drain valves.

Nozzle ID Size Schedule

The “flange break and make up” tag and register procedure shall be adopted and completed for all flange joints broken and made throughout this scope.

Three tie in points are typically utilised:

A central tie in used for the connection of the Sand Removal Package. This connection utilises a 3” 40 bar working pressure hose connected to an isolation valve and a ‘shear’ valve connected to the client valve. The 3” hose is terminated to the Hydraulic Ram from which a side stream carries the sand and water to the sand collection manifold.

Two tie ins at the extremities of the area of the vessel to be de-sanded. These connections are 2” or 3” 40 bar working pressure hoses connected to the client valves. The hoses are terminated to the sand collection manifold.

Depending on the progress of the de-sanding operation these connections may be changed around to ensure removal of the maximum amount of sand during the operation.

Suitable x-overs will be provided by RBG to ensure safe attachment of hoses to the client separator drain valves.

2.4.3 Sand Removal and Transfer Configuration

The sand jetting water is pumped through a 1” / ¾” / 5/8” high pressure polyflex hose which passes through the 3” 40 bar working pressure hardwall hose to access the vessel.


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The hydraulic ram is used to advance the water jetting / agitation nozzle through the 3” hardwall hose, isolation valve, shear valve and client valve(s) into the vessel.

The fluidised sand from the vessel flows through the annulus between the polyflex hose and the hardwall hose, to the hydraulic ram, through the side stream take off to the sand collection manifold.

The sand collection manifold is connected to the AOD by a 2” 40 bar working pressure hardwall hose.

Manipulation of the valves on the three separator connections will ensure that he maximum amount of sand is removed

2.4.4 Produced Water Return to Separator

The AOD skid separates sand and oil from the water removed from the separator and returns the water to the jetting unit for re-injection to the separator.

Water from the ‘clean water’ side of the sand collection tank is pumped through a pair of 10 micron fine filters to a plate heat exchanger. The heat exchanger cools the produced water to 40oC or lower to allow it to be pressurised to 200 bar by the jetting unit for re-injection to the separator for further sand agitation.

The hardwall hoses used to connect the AOD skid to the jetting unit are 3” 10 bar working pressure.

The jetting hoses are rated at 1” / ¾” / 5/8” x 500 bar working pressure.

The working pressure of the jetting system is 200 bar.

Once the 1” hose connects to the hydraulic ram the hose diameter is subject to variation and is contained within a 3” 40 bar working pressure hardwall hose.

2.4.5 Sand Disposal Configuration

The diaphragm pump discharging the sand from the sand collection tank is connected to a pneumatic Scale Reduction Unit by a 2” 10 bar working pressure hardwall hose.

The pneumatic Scale Reduction Unit shall be located at the most convenient location agreeable to all parties concerned. The area surrounding the unit will be designated a controlled area and appropriate barriers and warning signs shall be posted prior to start of work.

The discharge hose from the Scale Reduction Unit to the sea should be lowered 20m below sea level.During sand disposal to sea, no diving operations should be in progress and platform potable water makers should not be in operation.


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2.4.6 Chemical Addition

The initial water fill (6 m3) of the AOD skid will be provided by the platform and should preferably be either potable or produced water. No chemical treatment should be required. If any chemical treatment is required, the client shall supply the chemical itself and all relevant documentation, including COSHH Assessment and Manufacturers Safety Data Sheets.

If seawater is used as the initial fill then it may require to be treated with a scale inhibitor and / or oxygen scavenger and / or biocide to prevent adverse chemical reaction on injection to the separator produced water.If the process fluid is NORM contaminated then scale inhibitor may be required to ensure no deposits are left within the AOD system.

The AOD system is not a sealed unit and therefore oxygen may be absorbed into oxygen deficient water, which could prove problematic when re-injected to the separator.

These treatments should be discussed and agreed with the client prior to mobilisation

De-greaser / De-oiler

To assist the separation of oil, water and sand within the AOD skid, a quantity of chemical solvent (RBG preferred: AIC Supersolv) is required to be injected into the AOD skid inlet line. The chemical will be added via injection pump, CIP2, mounted on the AOD skid.Client clearance to use this or a substitute chemical must be obtained prior to deployment.

2.4.7 General Equipment Set-up Considerations

When securing hoses, kinking should be avoided, as this will accelerate wear of hose during pumping operations. It shall be the responsibility of the Team Leader to monitor hoses and equipment during operations on an ongoing basis.

All hoses shall be routed in a manner as to avoid walkways, hot surfaces and sharp edges as well as minimising tripping hazards wherever possible. If obstructing a walkway is unavoidable then highlighting tape will be utilised.

The area around the skid will be a restricted area due to the operations thus restricting access to equipment operators and invited, escorted personnel.


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2.5 Online Vessel De-sanding Method

The following method statement has been compiled to describe the use and operation of the AOD skid and associated equipment. This gives a clear, unambiguous statement as to how the online de-sanding works should be carried out.

Prior to online de-sanding operations commencing, the RBG AOD Team Leader and Client Area Authority should make final checks on the surrounding areas and equipment.

The Area Authority can be invited to witness the integrity checking but must be positioned as directed by the AOD Team Leader to ensure he does not expose himself to unnecessary danger.

Reference should be made to Appendix 11.5 (AOD Operating Procedure) of this workpack for detailed skid operating instructions.

Upon issue of the Permit to Work certificate for vessel de-sanding operations the following procedure shall be followed:-

2.5.1 Equipment Integrity Testing

Carry out the equipment pre operational checks as detailed in Appendix 11.5 (AOD Operating Procedure) of this workpack.

Prior to introducing process fluids to the AOD system the integrity of all hoses, connections and the skid itself must be demonstrably proven.

All hoses must be connected and connections competently made up.The de-sanding system (AOD skid, hydraulic ram, sand collection manifold and jetting unit must be connected and ready for operation.

The sand collection tank should be filled to just below the high level switch with either fresh water (not necessarily potable water), produced water or sea water. If using sea water the tank contents should be chemically treated as previously agreed with the client.

During the integrity checks any leaks should only be rectified once the system has been depressurised. Check the repair by pressurising the system again.Following the detailed procedure in the AOD Operating Procedure the AOD skid should be lined up for recycle mode.

Diaphragm Pump DP1A should be used to take suction from the sand collection tank, discharging to the three hydrocyclones. The hydrocyclones should be vented as they fill with water.The water outlet from hydrocyclone H3 should be closed allowing the diaphragm pump to reach ‘stall’ pressure. Check all hydrocyclone lines for leakage

Once the hydrocyclones have been successfully integrity tested the cross over between the hydrocyclone discharge and heat exchanger inlet should be opened allowing the diaphragm pump to pressurise the fine filters, heat exchanger and line to the jetting unit. Allow the diaphragm pump to reach ‘stall’ pressure. Check all lines and connections for leaks.


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Rectify any leaks before proceeding further.

DP1A should be S/D and pressure bled from the system on completion of the test.The sand outlet lines from the hydrocyclones must be opened prior to starting centrifugal pumps CF1 and CF2.

The sand collection manifold pressure relief valve will be set at approximately 2.0 barg above the agreed separator pressure for de-sanding operations.

The AOD Team Leader will ensure that the sand collection manifold is routed to the AOD skid and all valves are fully open. On the skid, BV3, the ESD valve should be closed

The jetting nozzle shall be energised by starting the jetting unit. By slowly adjusting the jetting unit bypass valve the pressure in the hose and ram assembly to BV3 on the AOD skid can be pressurised to the agreed pressure for de-sanding operations.All equipment, hoses and connections should be checked for leaks. Rectify any leaks before proceeding further.S/D the jetting unit and bleed off the pressure on completion of the integrity check.

The skid should now be lined up for de-sanding operations.Diaphragm Pump DP1A should be used to pump to a closed valve at the Particle Reduction Unit. Allow the pump to reach ‘stall’ pressure.Check the discharge line for any leaks.Rectify any leaks before proceeding further.

This completes the integrity check of the de-sanding system.

2.5.2 Flow Establishment

Refer to Appendix 11.5 (AOD Operating Procedure) for detailed skid operating instructions

During all separator de-sanding operations, radio communication shall be maintained between the AOD Operators and the Process Control Room. Regular updates will be communicated to the Process Control Room during the operation.

Prior to commencing operations, secondary means of communications shall be established, e.g. locating the nearest telephone and knowing the number of the Process Control Room.

Only when the integrity of the temporary hose system has been accepted will the vessel isolation valves be opened.

Chemical Injection (AIC Supersolv) should be started in the circulation route.

The diaphragm pump, DP1A, should be used to establish flow circulation around the AOD system. Centrifugal pumps CF1, CF2 and CF3 should be started establishing pressure and flow capability to the jetting unit.


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With the jetting nozzle located within a valve or steel spool (not within a hose section), the jetting unit should be started and, using the by pass valve, used to establish the forward flow throughout the system. This flow will be returned to the AOD skid.The vessel drain valves on the 3” hose containing the jetting nozzle should then be opened and the agitation nozzle should be gradually extended and inserted into the vessel. Sand and/or water will now flow to the AOD skid.As flow is established diaphragm pump DP1A should be changed from circulation mode to normal operation mode, being allowed to pump excess sand / water to the disposal route under tank level control.As DP1A is changed to normal operation mode the chemical injection should be re routed to the skid inlet injection point.

2.5.3 Sand Removal

On energisation, the polyflex hose and jetting nozzle is pushed through the shear valve, client valves and approximately 100mm into the vessel, this agitates and fluidises the sand / water mixture.

The sand / water mixture flows through the annulus between the polyflex hose and the hardwall hose to the sand collection manifold and onwards to the AOD skid. The flow is controlled by the AOD pressure reducing valve (BV1) in conjunction with the hydrocyclone liner capacity, typically about 400 l/min.

This mode of operation will continue until samples from the hydrocyclone sand outlet indicate virtually no sand.

At this point one of the adjacent hose connections can be slowly opened up allowing sand from further along the separator to flow to the AOD. When the hydrocyclone sand outlet sample again shows very little sand this outlet should be closed off and (if fitted) the other adjacent hose connection slowly opened.

If these adjacent vessel nozzles are too far from the jetting nozzle for the sand to be fluidised it may be necessary for the jetting nozzle to be moved to the adjacent nozzles. Re-testing of the integrity of the connections will be required if the nozzle is relocated.

On completion of that part of the de-sanding operation the jetting nozzle should be retracted to its starting point and the client valves closed. Jetting should continue for a couple of minutes to ensure that the manifold and hoses are flushed free of sand.

The jetting unit can now be S/D and manifold and hoses depressurised.

Prior to disconnection of any hoses the integrity of the client vessel drain valves must be confirmed. Following depressurisation the pressure gauge on the ram should be monitored for any rise in pressure, indicating a leaking valve. In the event that there is an indication of the vessel isolations passing, all vessel isolation valves will be operated one nozzle at a time until complete vessel isolation is proven.

During the de-sanding operation the vessel flow and pressure will be continually monitored. The sand collection tank levels and discharge filtration flow will also be continually monitored.


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The AOD skid is fitted with its own S/D system designed to S/D and isolate the skid from the separator in the event of any parameters exceeding design. Additionally the skid operator can S/D the skid by operating the Emergency Stop Button.

In the event of a GPA the power to the skid (via a welding socket) will be isolated, initiating a skid S/D. Additionally the GPA causes a loss of 110v supply to the jetting unit and hydraulic ram package. This causes the jetting unit and hydraulic ram to S/D. On loss of the 110 v supply the hydraulic ram automatically retracts the nozzle from the vessel, allowing the client valves to be manually closed.

In the event that the system is to be left unmanned, all vessel drainage isolation valves will be closed and power supplies to de-sanding equipment isolated.

2.5.4 Sand Collection Tank (within RBDSU 01)

All agitated sand and water is transferred to the AOD system for chemical treatment and separation by the hydrocyclones.

The hydrocyclones serve to thoroughly mix the chemical with the dirty sand causing the oil to be released from the sand as the sand and water are separated.

The solids are deposited in the sand collection tank. Inside the tank, a weir plate and baffle arrangement is used to retain the sand in the ‘dirty’ half of the tank, allowing oil and water to pass over the weir into the ‘clean’ half of the tank.

Within the ‘clean’ half of the tank the oil is skimmed of for return to the drains.

The ‘clean’ water is recycled for use in sand agitation in the separator.

The sand is continuously cleaned and discharged to the disposal point.

Throughout de-sanding operations, an air mover ventilates the sand collection tank to ensure that the hazardous gasses associated with the sand / water removed from the separator are vented to a safe area.

Methane and Hydrogen Sulphide gas detectors are incorporated into the AOD system.In the event that the amount of associated gas is sufficient to overcome the ventilation rate the methane gas detector will operate to S/D the skid at 40% LEL; the H2S detector will operate to S/D the skid at 10 ppm. (Alarms levels are set at 20% LEL and 5 ppm respectively).

During the vessel de-sanding, close radio contact shall be maintained with the Process Control Room to ensure that the level within the separator does not increase / decrease significantly.

In the event there is a significant high liquid level fluctuation within the sand collection tank, the skid will be S/D by the operation of a High Level Switch.If the flow to the tank reduces below the rate that is returned to the separator for sand agitation the skid will be S/D by the operation of a Low Level Switch.


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2.5.5 Fines Filtration Unit

Water from the ‘clean’ half of the tank is routed through a duplex 10 micron fine filter prior to returning to the HP water jetting unit.During de-sanding operations the filter DP will be monitored, when required the filters will be changed over. If the filters become blocked they can be changed independently of each other whilst the AOD is online. NORM contamination monitoring will be carried out at this stage.

In the event that the filters are contaminated they will be placed within NORM logo bags and placed within the confines of the restricted area. On completion of the de-sanding operations the filters will be washed with all waters being held within the confines of the filter chamber. The wash waters will be disposed of to the designated overboard disposal route.

The filters will be monitored and once classed as none contaminated will be disposed of as within the s waste disposal policy.

2.5.6 Sand Collection Tank – Sand Removal

Regular sampling will be performed throughout the de-sanding operations to estimate the quantity of sand being discharged by diaphragm pump DP1A.

The estimate of the amount of sand removed from the separator shall be recorded on the ‘Contaminated Waste Disposal Sheet’; this will be based on the results of the regular sampling taking place throughout the AOD operation.

All sand and oily water within the sand collection tank shall be cleaned to an acceptable level as required on the disposal licence, prior to disposal via the particle reduction unit. All recovered oil will be disposed of to the agreed drains disposal point.

If necessary, the AOD system will be put on a re-circulating cycle until the sand has been cleaned to an acceptable level.

To check that the pneumatic scale reduction unit is operating to the correct legal requirements, a sample of pulverised grit shall be taken by the RPS prior to NORM disposal operations.

It shall be ensured that any diving operations within the immediate vicinity of the platform have been suspended and the potable water makers are not operational during discharge of NORM contaminated material to sea.

All sand and scale removed from the sand collection tank shall be passed through the scale reduction unit before disposal to sea.

The above process shall be repeated until it is apparent that no more sand is being removed from the separator.


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2.6 Equipment De-rig

On completion of de-sanding operations, all equipment shall be flushed clean with water and degreaser prior to back loading to the beach.The manifold flushing point shall be utilised for flushing of the hose and valves.

Particular care must be taken with the AOD system to ensure that all traces of sand / scale are removed. Cleaning will continue until monitoring demonstrates that there is no NORM contamination remaining.

To accomplish this there may be a requirement for vessel entry of the sand collection tank. If required this will be completed in compliance with the permit to work system.

The worksite shall be left clean & tidy.


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3 RBG, Client & 3rd Party Interface

Details of all key RBG, Client & 3rd Party interface personnel specific to this workscope are listed below.

RBG INTERFACEJob Title Name Contact No. Area of Responsibility

Operations Manager John Walker 01224 215161 RBG – Aqua-DyneSnr Delivery Manager Neale Watson 01224 215137 RBG – Aqua-DyneDelivery Manager Colin Sherwood 01224 722888 RBG – Aqua-Dyne - Online CleaningShipping / Logistics John Strother 01224 722888 RBG – R PlantGroup HSEQ Manager John Fraser 01224 722888 RBG – Health and Safety Department

CLIENT INTERFACE

Job Title Name Contact No.Area of

Responsibility RBG Interface

3RD PARTY INTERFACE

Job Title Name Contact No.Area of

Responsibility RBG Interface


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4. Schedule / Project Plan

4.1 No RBG Project plan has been completed for this scope of works.


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5. Site Drawings

This section contains detailed list and copy of all drawings associated with the workscope including issue and revision numbering.

Drawing No.Issue/Rev No.

Drawing Title

NID-PID-AOD-001 0 Advanced Online Desander Process and Instrumentation Diagram

NID-GA-AOD-001 0 Advanced Online Desander General Arrangement DrawingClient drawings showing vessel connections


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6. Materials, Plant & Equipment

A list of all additional materials, plant and equipment required to undertake this workscope is attached as Appendix 6.1.

The RBG AOD Team Leader is responsible for ensuring all equipment is regularly maintained and operated strictly in accordance with manufacturer’s instructions.

He shall also ensure that all items are fit for purpose and comply with the relevant safety legislation.


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Appendix 6.1


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6.1.1 PLANT AND EQUIPMENT REQUIREMENTS

6.1.2 The AOD Team Leader shall ensure that all equipment is regularly maintained and operated strictly in accordance with the manufacturer’s printed instructions. He shall also ensure that the equipment is fit for purpose and complies with all relevant safety legislation.

6.1.3 Advanced Online De-sanding Package

Description Qty

High Flow Water Jetting Package, including: 1- Flame trap

- Foot Control Valve

- Spares package

- Certification

- Operating Manual

AOD Skid, including: 1- Spares package

- Operating Manual

-

- NORM Waste Transfer Package comprising: 1- Radiation Contamination monitor (2)

- Radiation dose Rate monitor

- stainless steel deluge shower

- BA full face respirator mask (4)

- Pneumatic Scale Reduction Unit

- 2” Hardwall hose (No. as required)

- 3” Hardwall hose (No. as required)

- Catchment Tray (3)

Air Supply Package 1Hydraulic Insertion System 1Plant and Equipment Shipping Container 2

6.1.4 Equipment Dimensions


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Item Width Length Height Weight

High Flow Jetting Unit 2.44m 3.10m 2.44m 7500kgAOD System (RBDSU01) 3.03m 5.30m 3.11m 8500kg (Dry)

14500kg (wet)Plant / Equipment Containers 2.44m 3.10m 2.44m TBCPneumatic Scale Reduction Unit 2.00m 1.10m 1.60m 1100kgHydraulic Ram 0.40m 2.50m 0.40m 450kgHydraulic Power Pack 0.80m 0.80m 1.15m 400kg

6.1.5 Equipment Electrical Requirements

Description Voltage

High Flow Jetting Unit 110 volt shutdownAOD System (RBDSU01) 440 volt Welding SocketHydraulic Power Pack 110 volt shutdown

6.1.6 Equipment Air Consumption

Description

Pneumatic Scale Reduction Unit 30 ft3/minAOD System (RBDSU01) 3100 ft3/min check this figure!!

6.1.7 Equipment Lay Down Area

Item Lay Down

High Flow Jetting Unit Skid DeckAOD System (RBDSU01) tbaPlant / Equipment Containers tbaPneumatic Scale Reduction Unit tbaHydraulic Power Pack Adjacent to Separator


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7. Personnel

The RBG team will comprise of the following personnel disciplines;

No. Discipline Shift1 AOD Team Leader Dayshift2 AOD Engineer Dayshift1 AOD Fitter Dayshift

Team Responsibilities

AOD TEAM LEADERThe AOD Team Leader is responsible for;1. Undertaking the responsibilities associated with the normal duties of the Radiation

Protection Supervisor.2. To ensure all work carried out by Aqua-Dyne is performed in accordance with the Local

Rules.3. To control the activities of all persons, whether or not Aqua-Dyne employees, who have

reason to enter the controlled areas designated by RBG.4. To supervise the activities of all persons, whether or not Aqua-Dyne employees, who have

reason to enter or remain in the controlled areas designated by Aqua-Dyne.5. To supervise all radiation protection measures put in place by Aqua-Dyne. To restrict the

exposure to ionising radiation’s of all persons in the vicinity of these works.6. To ensure that Aqua-Dyne employees working at this location are fully and properly

instructed and supervised with regard to the work in hand.7. To ensure that safety devices, monitoring equipment and emergency tools are properly

maintained and are available and used in accordance with these Local Rules.8. To implement contingency procedures in the event of an emergency, accident or incident

involving ionising radiation’s at this location.9. To advise and consult with the RPA in the event of any change in the working conditions or

working practices occurring which may require a change or revision to the Local Rules in force for this location.

AOD ENGINEERThe AOD Engineer is responsible for;1. Completion of work under supervision2. Waste Handling & transfer under supervision3. Assisting with work site establishment and maintenance thereafter4. General Site Cleaning5. An AOD Engineer will be designated as a Standby Man when vessel entry is required.AOD FITTERThe AOD Fitter is responsible for;1. As detailed above for the AOD Engineer2. Set-up / Safety Checks / Function test of plant and equipment3. Ongoing servicing and maintenance thereafter4. Performance of plant and equipment


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8. HSE Management

8.1 General Considerations

Prior to any work undertaken general considerations will apply. Refer to Appendix 8.1.

8.7 Health, Safety & Environment Questionnaire

Prior to workscope commencement, a Health, Safety & Environment Questionnaire should be completed in full. Refer to Appendix 8.2.

8.3 Site Specific HAZID/HAZOP ‘Checklist/Screening Study’

A copy of the completed client/site specific HAZID/HAZOP ‘checklist/study’ will be attached within Appendix 8.3 on completion at the worksite.

8.4 Toolbox Talks

In line with The RBG ‘Tool Box Talks’ procedure HSEQP015 (See Appendix 8.4), the AOD Team Leader will be responsible for performing regular discipline specific Tool Box Talks. He shall satisfy himself that the work content and working methods to be adopted are fully understood by all personnel under his supervision, and obtain signatures from each person under his control. Items to be discussed during the Toolbox Talk include but should not be limited to, adjacent operations, manual handling, escape routes, PPE, specialist tools or procedures and worksite cleanliness. Interim Toolbox Talks shall be carried out and recorded at the start of each shift change as well as at regular intervals and it is the responsibility of the Site Supervisor to ensure that the method statements are still suitable and adequate to the task in hand.

8.5 COSHH Assessments

Listed below are material/product COSHH assessment sheets required to be read in full prior to execution of the workscope.

A copy of all referenced assessments are attached to this section under Appendix 8.5

Material ProductSolvent AIC Supersolv

8.6 Manufacturer Material Safety Data Sheets (MSDS)

Manufacturers Material Safety Data Sheets (MSDS) for all materials being used in this workscope are included as Appendix 8.6.

8.7 Generic & Task Based Risk Assessments

RBG produced Task Risk Assessments relating to all tasks required to be carried out to complete the workscope are included in Appendix 7.All Generic Task Risk Assessments should be used in conjunction with any Task Based Risk Assessments and should be discussed during the Toolbox Talks onsite.


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Document No. Risk Assessments

Risblk. Blank Risk Assessment FormRisk 004. Manual HandlingRisk 017. Working with Harmful SubstancesAQD044 Ultra High/High Pressure Water JettingAQD047 Naturally Occurring Radioactive Material (NORM)AQD092 General CleaningAQD119 Non Intrusive Cleaning

Document No. Task Based Risk Assessments

TBRA-AQD-11 AOD Skid Operation

Document No. Proforma

AQD005 Daily Safety Check sheet for HP/UHP Jetting UnitsAQD010 Shift Record Sheet for Operations involving NORM

DecontaminationAQD011 Controlled Area Monitoring DiagramAQD012 Contaminated Waste Disposal SheetAQD022 Daily ReportAQD028 Thermoluminescent Dosimeter (TLD) Lost / Damaged

Report FormAQD031 Employee Performance ReviewAQD038 Area Monitoring DiagramAQD039 Backload AdviceAQD040 Thermoluminescent Dosimeter (TLD) ChecklistAQD052 NORM Reduction Unit Maintenance Report SheetAQD094 Controlled Area Entry Control SheetAQD097 Supervisor Monitor ChecklistAQD116 Equipment Certificate of Cleanliness

AQD0123 Daily Safety ChecklistForm 063 Hazardous Substance Work Place Assessment

HSEQF015 Toolbox Talk Record

8.8 Environmental Issues

All environmental issues will be managed in accordance with the RBG EMS manual (a copy of this document should be held by the RBG AOD Team Leader). A blank copy of the ‘Hazardous Substances Acknowledgement Form is attached as Appendix 8.8 to this section and should be used in conjunction with the Clients worksite specific procedures.


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8.9 Waste Disposal

All waste should be disposed of as per the Clients Environmental Management System and the RBG Document No. SPRO99 – ‘Site Waste Management /Packing Obligations and Monitoring’.The Aqua-Dyne proformas for the discharge to sea of NORM contaminated scale and sand – AQD054 and Discharge to sea of Oily produced sand - AQD055, are attached as Appendix 8.9.


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Appendix 8.2


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Health, Safety & Environmental QuestionnaireJob Description Job No.

Platform Advanced Online Non-intrusive Sand Removal

Completed by Checked by RBG Approval Client ApprovalColin Sherwood

1.0 Hazard IdentificationComplete?Yes/No Comments

Has a client/site specific Hazard Screening Study been carried out? (If yes, a copy should be inserted under Appendix 8.3)

No To be completed onsite.

2.0 Safety Case ImpactWill the ‘Safety Case’ be affected by this work? if YES, Client must be formally notified immediately.

Yes No

3.0 Safety Criticality AssessmentAnswer Yes or No to the following questions. When considering the questions, please bear in mind that despite isolations, depressurisation, draining and purging, the complete removal of hydrocarbon liquids, gases and other hazardous substances cannot be absolutely guaranteed. There is always a possibility of residual materials being released when breaking joints etc. It is usual that 2 or more positive answers will indicate that a job is Safety Critical.

Yes Noa) Does the system/equipment contain or has it contained hydrocarbons? b) Does the system/equipment contain or has it contained toxic gas or

asphyxiating gas?

c) Does the system/equipment contain or has it contained corrosive fluid? d) Does the system/equipment contain or has it contained high-pressure fluids or

gases?

e) Is high voltage electricity involved? f) Does the work involve any complex or heavy lifts? g) Does this job involve entry into any confined spaces etc.? h) Does this job involve exposure to high or low temperatures? i) Is it a low frequency job? j) Have there been any incidents when performing similar works? k) Is a Standard 3 (single valve) isolation involved? l) Does the work involve or create sources of ignition within a hazardous area? m) Does the work involve multiple trades? n) Does the work conflict with Standing Instructions? o) Does the work involve working outwith handrails (other than a properly

approved scaffold)?

p) Is the job weather sensitive (wind, heat, cold, daylight, lightning etc.)? q) Is the work in a remote location? r) Does the work affect escape routes or systems? s) Will the work inhibit a safety system? t) Is the job Safety Critical?


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4.0 Occupational SafetyYes No

a) Toolbox Talk Planned? (a toolbox talk should be held prior to commencement of all works, and if the nature of the job has changed at any time during the operation).

b) COSHH Assessment Required? (a copy of all COSHH assessments should be included under Appendix 8.5 of this document).

c) Have all isolations been clearly identified within the site specific ‘Hazard Identification Checklist / Screening Study’? (see Appendix 8.3).

d) Is Ionising Radiation involved? e.g. LSA Scale / NORM Removal / Radiography?

e) Are any hazardous or other hazardous substances involved? 5.0 Environmental

Yes Noa) Will any special waste materials be sent onshore for disposal? e.g. sludge,

used or unused .

b) Will any LSA / NORM contaminated equipment be returned for decontamination prior to servicing or repair?

c) Will the work result in emissions of harmful substances to atmosphere? If ‘Yes’ is there any Ventilation required?

d) Will any waste product be disposed of to a drainage system (If ‘Yes’ has the UK Prevention of Oil Pollution Act Exemption Certificate been reviewed)

If the answer to any of the questions contained in 4.0 or 5.0 above are ‘Yes’ or ‘Don’t Know’, please obtain further advice from the HSE Department.

6.0 Safety SummaryNote: if there are any deviations from the above or if there are any unusual HS&E issues which need to be highlighted, please consult the HSE Department for further advice and provide clear details below.


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Appendix 8.3


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8.3 Site Specific HAZID/HAZOP ‘Checklist/Screening Study’

8.3.1 A copy of the completed client/site specific HAZID/HAZOP ‘checklist/study’ will be attached within Appendix 8.3 on completion at the worksite.


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Appendix 8.4


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Appendix 8.5


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Appendix 8.6


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Appendix 8.7


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Appendix 8.8


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Appendix 8.9


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9. Quality Control/Working Procedures

All works will be undertaken strictly in accordance with the Scope of Work / Method Statement detailed in Section 2 of this document and the following Operational & Safety Procedures.

9.1 Operations Procedures

The following RBG Operational Procedures relating to the work scope / programme will be held by the senior RBG Supervisor on all work sites.

Document No. Title

QP/OPS/007 NORM Scale Removal and Disposal OffshoreQP/OPS/009 NORM Scale Reduction Unit – Particle Size ControlQP/OPS/014 High Pressure Water Jetting Incorporating Ultra High Pressure

Water Jetting for Offshore WorksQP/OPS/022 Procedure for Manual HandlingQP/OPS/028 Manual Handling QP/OPS/029 Local Rules for Working with NORM Offshore

9.2 Safety Procedures

The following RBG Safety Procedures are attached as Appendix 9.2 to this section;

Document No. Title

HSEQP004 Continuous ImprovementHSEQP009 Incident Reporting and InvestigationHSEQP014 Task Based Risk Assessment HSEQP015 Tool Box Talks (See Section 8.4)HSEQP017 COSHH - Use of Chemical ProductsHSEQP018 Control of Dangerous Substances and Explosive AtmospheresHSEQP030 Protective Clothing and EquipmentHSEQP048 Materials Handling and Storage

9.3 Inspection/Acceptance Reports

N/A

9.4 Continuous Improvement

A blank copy of the RBG ‘Continuous Improvement’ is included as Appendix 9.4 of this section.

9.5 Acceptance Certification

A blank copy of the RBG ‘Acceptance Certificate’ is included as Appendix 9.5 of this section.


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This certificate must be formally approved by the Client on the successful completion of the workscope and inserted back into Appendix 9.5 of the document as part of the workpack closeout process.


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Appendix 9.1


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Appendix 9.2


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Appendix 9.3


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Appendix 9.4


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Appendix 9.5


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10. Workpack Completion

After the successful completion of the workscope and when in receipt of a confirmed client approved ‘Acceptance Certificate’ the Workpack Close Out Form WPK002 should be jointly completed by both the AOD Team Leader and the RBG Delivery Manager – Online Cleaning.It is recommended that this report be completed at the Workpack Close-Out Meeting.

In order to complete the ‘Workpack Closeout Process’ a copy of the ‘Workpack Completion Report’ Form WPK001 must be filed back into the Workpack under Appendix 10.1


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Appendix 10.1


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11. Appendices

11.1 Original Work Order / Request / Site Instruction

The original Work Order/Request/ Client Instruction etc. should be attached to this section under Appendix 11.1.

11.2 Qualifications

Where applicable any qualifications/conditions to the proposed workscope should be filed under Appendix 11.2 of this section.

11.3 Variations

Where applicable any variations to the original Work Order/Request should be filed under Appendix 11.3 to this section.

11.4 Job Cards

Where requested, Client specific job cards should be completed and maintained under Appendix 11.4 of this document.Blank RBG job cards may also be attached under Appendix 11.4 for convenience.


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11.5 AOD System Operational Procedure

The operational procedure for use with the AOD system has been attached under Appendix 11.5 for reference prior to and during system operation.


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Appendix 11.1


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Appendix 11.2


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11.2 QUALIFICATIONS

11.2.1 Client to provide the initial fill of the AOD system, approx 6m3 fresh or produced water. If sea water is to be used and chemical treatment is required, the client should specify dosage and provide the chemical for treatment

11.2.2 RBG Aqua-Dyne to carry out all necessary sampling during cleaning operations. These will then be on passed to the Safety Department.

11.2.3 Client to provide 110v ESD tie in to shutdown system for the Jetting Unit, and hydraulic power pack. Client to provide the 440v supply (welding socket) to power the AOD skid.

11.2.4 RBG Aqua Dyne to ensure all equipment that requires lifting slings are supplied with full certification.

11.2.5 Client to provide scaffold services for hose carrier over walkways as required.

11.2.6 Client to confirm the requirement for any scale inhibitor, oxygen scavenger or other chemical and, if required, provide them for use by the AOD operating team.


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Appendix 11.3


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Appendix 11.4


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Appendix 11.5
