GS_EP_SPS_027_EN

Exploration & Production

This document is the property of Total. It must not be stored, reproduced or disclosed to others without written authorisation from the Company.

GENERAL SPECIFICATION

SUBSEA SYSTEMS

GS EP SPS 027

WOROV spread minimum requirements

00 10/2008 First issue

Rev. Date Notes


General Specification Date: 10/2008

GS EP SPS 027 Rev: 00


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Contents

1. Scope .......................................................................................................................3

2. Reference documents.............................................................................................3

3. Definitions................................................................................................................4

4. Abbreviations ..........................................................................................................5

5. WOROV spread: material requirements ................................................................5 5.1 Generalities........................................................................................................................5 5.2 Operator control cabin .......................................................................................................6 5.3 Workshop cabin .................................................................................................................7 5.4 Launch and recovery system.............................................................................................7 5.5 Umbilical winch ..................................................................................................................7 5.6 ROV tooling package.........................................................................................................7 5.7 TETHER management system ..........................................................................................8 5.8 Remotely operated vehicle ................................................................................................8 5.9 Operational limitations .....................................................................................................10

6. WORKROV spread: personnel requirements .....................................................10 6.1 ROV Superintendent Qualification...................................................................................10 6.2 ROV Supervisor Qualification ..........................................................................................10 6.3 ROV Pilot/Technician Qualification..................................................................................11

7. Maintenance requirements...................................................................................11

8. Interfaces ...............................................................................................................11 8.1 Interfaces with vessel ......................................................................................................11 8.2 Interfaces with subsea production systems .....................................................................12





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1. Scope The purpose of this General Specification is to define the minimum requirements for each WOROV spread, equipment and personnel, to be installed on vessels for the following applications:

• Drilling support

• Construction support

• IMR operations

• Survey applications.

The intent of this General Specification is to allow sufficient flexibility to maximize the benefits from CONTRACTOR’s experience and designs.

The use of equipment and components that are field proven is strongly recommended. However use of equipment not field proven shall be submitted to qualification program early in the project and approved by COMPANY.

It is the CONTRACTOR’s responsibility to provide a safe, economic and technically fit for purpose WOROV spread.

2. Reference documents The reference documents listed below form an integral part of this General Specification. Unless otherwise stipulated, the applicable version of these documents, including relevant appendices and supplements, is the latest revision published at the EFFECTIVE DATE of the CONTRACT.

Standards

Reference Title

ISO 13628 Petroleum and Natural Gas Industries - Design and operation of subsea production system

ISO 13628 - 1 Petroleum and Natural Gas Industries - Design and Operation of Subsea Production Systems - Part 1: General Requirements and Recommendations

ISO 13628 - 8 Petroleum and Natural Gas Industries - Design and Operation of Subsea Production Systems - Part 8: Remotely Operated Vehicle (ROV) Interfaces on Subsea Production Systems

ISO 13628 - 9 Petroleum and Natural Gas Industries - Design and Operation of Subsea Production Systems - Part 9: Remotely Operated Tool (ROT) Intervention Systems

ISO 4406 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles





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Professional Documents

Reference Title

DnV Rules Rules for Planning and Execution of Marine Operation

Regulations

Reference Title

Not applicable

Codes

Reference Title

Not applicable

Other documents

Reference Title

Not applicable

Total General Specifications

Reference Title

GS EP SPS 001 Design philosophy and requirements for subsea stations

GS EP SPS 007 Tie-in systems

GS EP SPS 016 Subsea Chokes Inserts and Associated Running and Retrieval Tools

3. Definitions ROV spread A complete ROV system including all equipment, spare parts, consumables

and dedicated personnel

Service means all activities to be performed by CONTRACTOR under the CONTRACT, which include the provision by CONTRACTOR of EQUIPMENT and CONTRACTOR’s PERSONNEL

Site Means any location where CONTRACTOR shall perform the SERVICE





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4. Abbreviations API American Petroleum Institute

DP Dynamic Positioning

GS General Specification

HPU Hydraulic Power Unit

HSE Health Safety and Environment

IMR Inspection Maintenance and Repair

ISO International Standard Organisation

LARS Launch And Recovery System

MSDS Material Safety Data Sheet

ROV Remotely Operated Vehicle

SPS Subsea Production System

SWL Safe Working Load

TMS Tether Management System

VHF Very High Frequency

WOROV Work Class Remotely operated Vehicle

5. WOROV spread: material requirements

5.1 Generalities A WOROV spread shall include the following equipment:

• One control cabin

• One launch and recovery system

• One winch including the main lift umbilical

• One hydraulic power unit (HPU) to energize the LARS and the winch

• One remotely operated vehicle (ROV)

• One tether management system (TMS)

• One workshop

• One ROV tooling package

• One set of spare parts.

For operations requiring two WOROV, CONTRACTOR shall provide two ROV spread with the same design, using the same components and the same spare parts.





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5.2 Operator control cabin The operator control cabin contains the operator control unit and all the surface electronic equipments required for the performance of the work. Except if otherwise specified by COMPANY it shall be delivered within a 20 feet container or smaller.

The Operator Control cabin shall be equipped with the following devices.

• The standard operator control unit

• One video Overlay

• One video switcher (minimum 8 inputs/8 outputs)

• Two Video amplifiers

• Two DVD video recorders

• One colour monitor for each ROV camera

• One colour monitor for the TMS video display

• One colour video monitor to display the navigation system

• Two ROV operator seats

• One Computer desktop for reporting

• One video printer

• One video grabber

• A permanent VHF marine radio with outside aerial

• Communication with the workshop cabin and the WOROV launching area

• Fire extinguisher for electrical installations

• On DP vessels the Operator control cabin shall include a DP alert system.

In addition to the control cabin equipment CONTRACTOR shall provide the following equipments:

• Two colour monitors for the COMPANY office

• One DVD recorder for COMPANY office

• Two colour monitors for the bridge.

On drilling vessel only:

• Two additional monitors for the rig floor (Ex proof)

• If required by COMPANY the control cabin shall be class 2.

On Survey vessels CONTRACTOR shall complete the equipment mentioned here-above by typical survey equipment in accordance to the scope of work defined by Company.

All video equipment shall be European PAL compatible.





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5.3 Workshop cabin The WOROV spread shall be delivered with one workshop integrated to the vessel or integrated within a 20 feet container or smaller.

The workshop shall be supplied with:

• All hand tooling for the maintenance of all ROV spread equipment

• All spare parts required for the maintenance in accordance with CONTRACTOR preventive maintenance system

• All necessary consumables for the performance of the work. All consumables shall be delivered with the respective MSDS

• Direct communication with the control cabin and the WOROV launching area

• Fire extinguisher for electrical installations.

5.4 Launch and recovery system The LARS shall be designed to launch and recover the WOROV and its TMS from the vessel within the maximum weather conditions defined by COMPANY.

The LARS shall integrate an Aframe or a crane to launch/recover the vehicle to/from sea.

Depending of weather conditions and vessel support a cursor system or heave compensated system can be proposed by CONTRACTOR.

The SWL of the LARS shall be calculated taking into consideration the weight of the ROV + TMS + Tooling and 2.5 T additional dedicated to extra ROV skid. The calculation shall be done under the worse weather conditions stipulated within the contract.

The LARS shall be equipped with a direct communication system allowing the operator to communicate with the ROV control cabin and the ROV workshop.

5.5 Umbilical winch The umbilical winch shall be designed taking into consideration the weight of the ROV + TMS + Tooling and 2.5 T additional dedicated to extra ROV skid.

The umbilical shall be armoured and anti-rotation type.

The umbilical length shall not be less than the water depth + 20%.

The winch shall be able to run the vehicle up and down with a minimum operating speed of 30 m/min.

5.6 ROV tooling package CONTRACTOR shall provide the ROV spread with a ROV tooling package in accordance with the scope of work.

In case a torque tool is required, CONTRACTOR shall provide an orientation support tool (vertical/horizontal) compatible with the torque tool.





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Except if otherwise specified by COMPANY, the following ROV tools shall be supplied by CONTRACTOR as standard equipment with the ROV spread:

• Hydraulic dirty work package. Pressure and flow to be selected in accordance with project specific tooling. If not otherwise specified by COMPANY the hydraulic requirements shall be as follow:

- Hydraulic output pressure: 210 bars

- Hydraulic output flow: 30 l/min

• Manipulator inspection camera with internal lights (mini colour camera mounted on extension bracket)

• ROV knife

• Grinder

• AX/VX ring change tool (Drilling support and IMR applications Only)

• High pressure water jet pump.

5.7 TETHER management system Each WOROV spread shall be delivered with a TMS, top hat or cage type. If the type is not specified by COMPANY, CONTRACTOR shall propose the best configuration in accordance with the scope of work.

The TMS shall be provided with a minimum tether length capacity of 400 meters.

In any case the tether length shall not be less than 300 meters.

The TMS shall include a video camera and light for easy docking/undocking operations.

5.8 Remotely operated vehicle

5.8.1 Generalities The Vehicle shall have enough power to perform all tasks mentioned in the scope of work within the sea and weather limitations mentioned by COMPANY.

In any case the WOROV “shaft power” shall not be less than 100 hp.

The vehicle shall be equipped with a twin hydraulic circuit, one main circuit for thrusters and one auxiliary circuit for the tooling.

It shall have several spare valves to be able to operate bi-directional functions at an operating pressure of 210 bars to face all various possibilities of ROV tooling installation required by the SERVICE.

The vehicle shall have a minimum 200 kg payload over standard ROV fit (including the two manipulators) and must support buoyancy blocks if the payload need to be increased.

The thrusters configuration can be vectored or axial. However the vehicle shall be designed to move in any direction using at least two thrusters.





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5.8.2 Vehicle sensors The WOROV shall be equipped with the following sensors:

• Precision depth sensor (0.1 m resolution, 0.1 m accuracy)

• Precision altimeter (0.1 m accuracy)

• Pitch and roll sensors (0.1° accuracy).

The WOROV shall include auto depth, auto heading and auto altitude modes.

5.8.3 WOROV cameras The WOROV shall be equipped with at least two video cameras.

• One low light camera mounted on a pan and tilt system

• One colour zoom camera mounted on a pan and tilt system. The zoom shall be remotely controlled. The focus shall be automatic. However it shall be possible to control the focus manually from the surface.

The pan and tilt systems shall be remote controlled for elevation (± 90°) and azimuth (± 120°).

All cameras installed shall be combined with adjustable lighting.

All cameras shall be design for PAL European system.

5.8.4 Manipulator arms The WOROV shall be equipped two manipulator arms.

• One seven functions arm located on the right side

SCHILLING TITAN 4 or equivalent

It shall use a master/slave interface with proportional control.

• One five functions arm located on the left side

SCHILLING RIGMASTER or equivalent.

5.8.5 Navigation and positioning equipment The following equipment shall be provided:

5.8.5.1 Gyro Octans 3000 Fiber Optic Gyro or equivalent (resolution must be better than 1°).

5.8.5.2 Sonar Obstacle avoidance Sonar with a range of 1 to 150 m.

5.8.5.3 Beacon The WOROV shall be equipped with a permanently installed acoustic beacon which shall be compatible with the support vessel acoustic system. It shall be possible to use the beacon either in responder or transponder mode.





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The number of beacons provided shall allow covering 24h/24h operations with one beacon installed on vehicle.

5.9 Operational limitations The WOROV shall be able to operate within sea conditions and operational conditions defined by Company within the scope of work.

6. WORKROV spread: personnel requirements Each WOROV spread shall be operated by a three man team (1 supervisor and two ROV operators/technicians) per 12 hours shift.

One ROV superintendent shall be added in case of 24 hours operation with two WOROV.

All ROV personnel shall have the capability to operate and maintain the WOROV spread(s).

All personnel shall have a medical certificate up to date during the duration of the contract. It is CONTRACTOR responsibility to check the validity of the certificate before to send the personnel offshore.

CONTRACTOR personnel shall have completed a BST and HUET training course before assignment to SITE. It is CONTRACTOR responsibility to check the validity of the training courses for each personnel before to go offshore.

Except if otherwise specified by COMPANY all personnel shall speak English.

The ROV crew will comprise qualified technicians in charge of operating and maintenance of the ROV spreads in accordance with the following requirements.

6.1 ROV Superintendent Qualification • Have a formal technical education

• Have a minimum ten (10) years experience with ROV offshore operation with a minimum five (5) years experience from a DP vessel as ROV Supervisor

• Have a basic instruction in the capabilities and limitations of working on DP

• Have basic knowledge on positioning system

• Have a comprehensive knowledge of all tasks planned for ROV interventions

• Have a comprehensive knowledge of HSE

• Fully trained with comprehensive experience in manipulator operation and with ROV tool system.

6.2 ROV Supervisor Qualification The supervisor shall at all time fulfil the following position requirements:

• Have a formal technical education

• Have a minimum five (5) years experience with ROV offshore operation with a minimum three (3) years experience from a DP vessel as ROV Pilot

• Have a basic instruction in the capabilities and limitations of working on DP





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• Have basic knowledge on positioning system



• Fully trained with comprehensive experience in manipulator operation and with ROV tool system.

6.3 ROV Pilot/Technician Qualification The ROV pilot shall fulfil the following position requirements:

• Have a formal technical education in mechanical, electrical or electronic disciplines

• Have a minimum of two (3) years experience with ROV offshore operation and maintenance including manipulating operation, with a minimum two (1) year experience from a DP vessel as ROV pilot



• Fully trained with comprehensive experience in manipulator operation and with ROV tool system

• Have a formal and documented course held by ROV manufacturer in operation and maintenance of proposed vehicle/system.

7. Maintenance requirements CONTRACTOR shall provide a yearly maintenance plan for COMPANY review.

A critical spare part list shall be issue by CONTRACTOR to COMPANY for review. This list shall identify the most important spare parts to be available onboard the support vessel in addition to the common spare parts.

The maintenance of WOROV SPREAD shall be performed in accordance with the following rules:

• Equipment maintenance on the VESSEL shall be performed during stand by periods, without interfering with operations

• Maintenance shall be planned in co-ordination with COMPANY. For each planned maintenance, a request shall be issued for COMPANY approval. Such request shall specify the maximum expected unavailability of the WOROV spread

• Maintenance shall be performed by the standard ROV crew.

8. Interfaces

8.1 Interfaces with vessel CONTRACTOR shall provide the WOROV spread with all the interfaces required to install the system onboard the vessel.





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These interfaces are including, but not limited to the following:

• Hoses and fitting for HPU water cooling

• Electrical cables and connectors to connect the system to the vessel power

• Hoses and fittings required to provide pressure air to the system

• All material required to provide the video and communication signals from/to ROV facilities.

8.2 Interfaces with subsea production systems The interfaces with the SPS shall comply with ISO 13628-8.