Dep 80.00.10.12_layout Of Offshore Facilities

DEP SPECIFICATION

Copyright Shell Group of Companies. No reproduction or networking permitted without license from Shell. Not for resale

LAYOUT OF OFFSHORE FACILITIES

DEP 80.00.10.12-Gen. February 2019

ECCN EAR99

DESIGN AND ENGINEERING PRACTICE

DEM1

© 2019 Shell Group of companies All rights reserved. No part of this document may be reproduced, stored in a retrieval system, published or transmitted, in any form or by any means, without the prior written permission of the copyright owner or Shell Global Solutions International BV. This document contains information that is classified as EAR99 and, as a consequence, can neither be exported nor re-exported to any country which is under an embargo of the U.S. government pursuant to Part 746 of the Export Administration Regulations (15 C.F R. Part 746) nor can be made available to any national of such country. In addition, the information in this document cannot be exported nor re-exported to an end-user or for an end-use that is prohibited by Part 744 of the Export Administration Regulations (15 C.F R. Part 744).

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PREFACE DEP (Design and Engineering Practice) publications reflect the views, at the time of publication, of Shell Global Solutions International B.V. (Shell GSI) and, in some cases, of other Shell Companies. These views are based on the experience acquired during involvement with the design, construction, operation and maintenance of processing units and facilities. Where deemed appropriate DEPs are based on, or reference international, regional, national and industry standards. The objective is to set the standard for good design and engineering practice to be applied by Shell companies in oil and gas production, oil refining, gas handling, gasification, chemical processing, or any other such facility, and thereby to help achieve maximum technical and economic benefit from standardization. The information set forth in these publications is provided to Shell companies for their consideration and decision to implement. This is of particular importance where DEPs may not cover every requirement or diversity of condition at each locality. The system of DEPs is expected to be sufficiently flexible to allow individual Operating Units to adapt the information set forth in DEPs to their own environment and requirements. When Contractors or Manufacturers/Suppliers use DEPs, they shall be solely responsible for such use, including the quality of their work and the attainment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal will typically expect them to follow those design and engineering practices that will achieve at least the same level of integrity as reflected in the DEPs. If in doubt, the Contractor or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal. The right to obtain and to use DEPs is restricted, and is typically granted by Shell GSI (and in some cases by other Shell Companies) under a Service Agreement or a License Agreement. This right is granted primarily to Shell companies and other companies receiving technical advice and services from Shell GSI or another Shell Company. Consequently, three categories of users of DEPs can be distinguished: 1)

Operating Units having a Service Agreement with Shell GSI or another Shell Company. The use of DEPs by these Operating Units is subject in all respects to the terms and conditions of the relevant Service Agreement.

2)

Other parties who are authorised to use DEPs subject to appropriate contractual arrangements (whether as part of a Service Agreement or otherwise).

3)

Contractors/subcontractors and Manufacturers/Suppliers under a contract with users referred to under 1) or 2) which requires that tenders for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards.

Subject to any particular terms and conditions as may be set forth in specific agreements with users, Shell GSI disclaims any liability of whatsoever nature for any damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any DEP, combination of DEPs or any part thereof, even if it is wholly or partly caused by negligence on the part of Shell GSI or other Shell Company. The benefit of this disclaimer shall inure in all respects to Shell GSI and/or any Shell Company, or companies affiliated to these companies, that may issue DEPs or advise or require the use of DEPs. Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent of Shell GSI, be disclosed by users to any company or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shall be returned after use, including any copies which shall only be made by users with the express prior written consent of Shell GSI. The copyright of DEPs vests in Shell Group of companies. Users shall arrange for DEPs to be held in safe custody and Shell GSI may at any time require information satisfactory to them in order to ascertain how users implement this requirement. All administrative queries should be directed to the DEP Administrator in Shell GSI.

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TABLE OF CONTENTS 1. 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8

INTRODUCTION ........................................................................................................ 4 SCOPE ....................................................................................................................... 4 DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS ......... 4 DEFINITIONS ............................................................................................................. 4 CROSS-REFERENCES ............................................................................................. 6 SUMMARY OF MAIN CHANGES............................................................................... 6 COMMENTS ON THIS DEP ....................................................................................... 6 DUAL UNITS............................................................................................................... 6 NON NORMATIVE TEXT (COMMENTARY) .............................................................. 6

2.

LAYOUT STRATEGY ................................................................................................ 7

3. 3.1 3.2 3.3 3.4

LAYOUT DEVELOPMENT ACTIVITIES .................................................................... 7 OBJECTIVES OF LAYOUT DEVELOPMENT AND LAYOUT OPTIMISATION......... 7 PHASING OF LAYOUT DEVELOPMENT ACTIVITIES AND DELIVERABLES ........ 7 APPLICATION OF FACILITY LAYOUT METHODOLOGY ........................................ 8 REVIEWS PER PROJECT PHASE ............................................................................ 8

4. 4.1 4.2 4.3 4.4 4.5

GENERAL LAYOUT CONSIDERATIONS AND ORIENTATION .............................. 8 LAYOUT DESIGN CRITERIA ..................................................................................... 8 FACILITY ORIENTATION ........................................................................................ 10 FACILITY TOPSIDE LAYOUT .................................................................................. 11 PROCESS FLOW ..................................................................................................... 11 PIPELINES, FLOWLINES, RISERS AND ESD VALVES ......................................... 12

5. 5.1 5.2 5.3 5.4 5.5 5.6 5.7

DETAILED LAYOUT REQUIREMENTS .................................................................. 12 HAZARDOUS EVENTS ............................................................................................ 12 EVACUATION OF PERSONNEL ............................................................................. 13 IGNITED BLOWOUTS AND PROCESS ORIGINATED EXPLOSIONS .................. 13 FIRE WALLS AND SYSTEMS .................................................................................. 14 AREA CLASSIFICATION ......................................................................................... 14 PIPING ...................................................................................................................... 14 WELLHEAD AND DRILLING EQUIPMENT ............................................................. 15

6. 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9

DETAILED LAYOUT CONSIDERATIONS .............................................................. 15 OPERATIONS AND MAINTENANCE REQUIREMENTS ........................................ 15 INSTRUMENTATION ............................................................................................... 17 SAFETY EQUIPMENT ............................................................................................. 17 PROCESS EQUIPMENT .......................................................................................... 18 UTILITIES ................................................................................................................. 20 FLARE SYSTEMS .................................................................................................... 22 FACILITY DRAINS SYSTEMS ................................................................................. 22 PIG TRAPS ............................................................................................................... 22 ELECTRIC CABLE LAYOUTS ................................................................................. 23

7.

REFERENCES ......................................................................................................... 24

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ECCN EAR99

1.

INTRODUCTION

1.1

SCOPE

DEP 80.00.10.12-Gen. February 2019 Page 4

This DEP specifies requirements and gives recommendations for the development and optimisation of layouts for all offshore facilities for fixed and floating platforms including Floating Production, Storage and Offloading facility (FPSO). It covers the layout aspects of topsides on single standalone platforms and for platforms forming part of multiple platform complexes. Field layouts of locating multiple platforms in a complex with their interconnecting subsea hardware are excluded from the scope of this DEP. This DEP contains mandatory requirements to mitigate process safety risks in accordance with Design Engineering Manual (DEM) 1 – Application of Technical Standards. This is a revision of the DEP of the same number dated February 2017; see section (1.5) regarding the changes. 1.2

DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS Unless otherwise authorised by Shell GSI, the distribution of this DEP is confined to Shell companies and, where necessary, to Contractors and Manufacturers/Suppliers nominated by them. Any authorised access to DEPs does not for that reason constitute an authorization to any documents, data or information to which the DEPs may refer. This DEP is intended for use in offshore facilities related to oil and gas production and gas handling. This DEP may also be applied to similar facilities. Use of this DEP is mandatory for new facilities and it may be used for revamps or expansions of existing facilities. When DEPs are applied, a Management of Change (MOC) process shall be implemented; this is of particular importance when existing facilities are to be modified. If national and/or local regulations exist in which some of the requirements could be more stringent than in this DEP, the Contractor shall determine by careful scrutiny which of the requirements are the more stringent and which combination of requirements will be acceptable with regards to the safety, environmental, economic and legal aspects. The Contractor shall inform the Principal of any necessary deviation from the requirements of this DEP in order to comply with national and/or local regulations. The Principal may then negotiate with the Authorities concerned, the objective being to obtain agreement to follow this DEP as closely as possible.

1.3

DEFINITIONS

1.3.1

General definitions The Contractor is the party that carries out all or part of the design, engineering, procurement, construction, commissioning, or management of a project or operation of a facility. The Principal may undertake all or part of the duties of the Contractor. The Manufacturer/Supplier is the party that manufactures or supplies equipment and services to perform the duties specified by the Contractor. The Principal is the party that initiates the project and ultimately pays for it. The Principal may also include an agent or consultant authorised to act for, and on behalf of, the Principal. The word shall indicates a requirement. The capitalised term SHALL [PS] indicates a process safety requirement. The word should indicates a recommendation. The word may indicates a permitted option.

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1.3.2

1.3.3

DEP 80.00.10.12-Gen. February 2019 Page 5

Specific definitions Term

Definition

ALARP

As Low As Reasonably Practicable - ALARP demonstration that is executed in accordance with the ALARP guide (SR.13.14005) and include as a minimum appropriate consequence modelling or risk assessment.

Facility

One single supported structure (can be a standalone integrated deck or standalone facility or a facility of a multi bridge linked facility complex)

Human Factors Engineering

Application of human physical and cognitive sciences in conjunction with engineering sciences to achieve optimal human and system performance

SIMultaneous OPerationS

Operations that include simultaneous operation and maintenance activities as well as simultaneous operation and constructions activities

Very toxic (substances)

Very toxic substances are those which are as specified either “very toxic-acute”, “very toxic-chronic”, or “very toxic-environment” in Part III of DEP 01.00.01.30-Gen.

Abbreviations Term

Definition

CFD

Computational Fluid Dynamics

EER

Escape, Evacuation and Rescue

FCC

Facility Control Centre

FPSO

Floating Production Storage and Offloading facility

HAC

Hazardous Area Classification

HEMP

Hazards and Effects Management Process

HF

Human Factors

HFE

Human Factors Engineering

HSE

Health, Safety & Environment

HSSE

Health, Safety, Security and Environment

HVAC

Heating, ventilation and air-conditioning

LQ

Living Quarters

NPSH

Net Positive Suction Head

POB

Personnel on Board

QRA

Quantitative Risk Assessment

SIMOP

SIMultaneous OPerations

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1.4

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Term

Definition

SP

Social Performance

TR

Temporary Refuge

CROSS-REFERENCES Where cross-references to other parts of this DEP are made, the referenced section or clause number is shown in brackets ( ). Other documents referenced by this DEP are listed in (7).

1.5

SUMMARY OF MAIN CHANGES This DEP is a revision of the DEP of the same number dated February 2017. This is an administrative update only to correct references to DEPs that have been involved in either a merge or a split.

1.6

COMMENTS ON THIS DEP Comments on this DEP may be submitted to the Administrator using one of the following options: Shell DEPs Online (Users with access to Shell DEPs Online)

Enter the Shell DEPs Online system at https://www.shelldeps.com Select a DEP and then go to the details screen for that DEP. Click on the “Give feedback” link, fill in the online form and submit.

DEP Feedback System (Users with access to Shell Wide Web)

DEP Standard Form (other users)

Enter comments directly in the DEP Feedback System which is accessible from the Technical Standards Portal http://sww.shell.com/standards. Select “Submit DEP Feedback”, fill in the online form and submit. Use DEP Standard Form 00.00.05.80-Gen. to record feedback and email the form to the Administrator at [email protected].

Feedback that has been registered in the DEP Feedback System by using one of the above options will be reviewed by the DEP Custodian for potential improvements to the DEP. 1.7

DUAL UNITS This DEP contains both the International System (SI) units, as well as the corresponding US Customary (USC) units, which are given following the SI units in brackets. When agreed by the Principal, the indicated USC values/units may be used.

1.8

NON NORMATIVE TEXT (COMMENTARY) Text shown in italic style in this DEP indicates text that is non-normative and is provided as explanation or background information only. Non-normative text is normally indented slightly to the right of the relevant DEP clause.

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2.

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LAYOUT STRATEGY The main drivers for the development of an offshore facility layout are costs, lost production and safety. A properly configured facility is a low initial cost system that maximizes its production throughout its life by minimizing downtime due to planned activities and unplanned incidents. 1.

2.

The facility layout strategy shall achieve the following elements: a.

compact layouts;

b.

minimum hydrocarbon inventory;

c.

functional requirements;

d.

safety requirements consistent with the Project HSSE & SP Philosophies;

e.

safety risk levels for on-site workforce are ALARP, and escape, evacuation, and rescue facilities are provided to avoid the effects of hazards;

f.

safety and environmental risk levels for surrounding facilities are ALARP;

g.

minimum lost production.

Compact layouts in offshore facilities shall: a.

maximize natural ventilation in process areas to prevent accumulation of a flammable gas cloud; Forced ventilation may be used when natural ventilation is inadequate to prevent accumulation.

b.

separate fuel and ignition sources to prevent ignition of flammable releases;

c.

maintain the minimum required separation distances or provide safety barriers to reduce the risk from fire and blast hazards.

3.

The Project HSSE & SP Philosophies SHALL [PS] be incorporated into the layout development at each stage of the project.

4.

Safe and unhindered access shall be provided for future foreseeable construction activities including simultaneous operations (SIMOPS).

3.

LAYOUT DEVELOPMENT ACTIVITIES

3.1

OBJECTIVES OF LAYOUT DEVELOPMENT AND LAYOUT OPTIMISATION The application of Quantitative Risk Assessment (QRA) and the concept of Risk Tolerability Criteria, in comparing alternative layout designs, is considered valuable as part of the decision-making process. In addition, it will help in demonstrating that the risk criteria have been achieved and that the risks are indeed ALARP. 1.

The layout shall be subject to approval by all engineering disciplines involved in the design, as well as construction, operations, maintenance, and HSE staff. At the early stages of development there could be a significant level of weight and dimensional uncertainty, as equipment sizes have to be assumed. As a result, a degree of iteration is inevitable as the layouts are developed.

2.

3.2

Sufficient space and weight allowance should be provided to accommodate increases in equipment sizes as the process design is finalised and vendor information becomes available.

PHASING OF LAYOUT DEVELOPMENT ACTIVITIES AND DELIVERABLES Layout development activities to assure that the layout is ALARP, will take place at various distinct stages during a project development cycle including all changes during the course of the project.

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3.2.1

DEP 80.00.10.12-Gen. February 2019 Page 8

Identify and assess phase The Identify and Assess phase closes with the feasibility of project concept options. 1.

3.2.2

As part of the IDENTIFY and ASSESS phase, schematic layouts shall be prepared for proposed developments in order to assess the feasibility of the possible concepts.

Select phase 1.

3.2.3

As part of the SELECT phase, layouts shall be developed to support the SELECT phase risk assessment, activity planning, costs estimating, and to assist with concept selection across all options being considered.

Define phase 1.

3.2.4

As part of the DEFINE phase, layout shall be developed to support the DEFINE phase risk assessment, activity planning, constructability, installation, commissioning, technical integrity, maintainability, operability and costs estimating for the selected concept.

Execute phase 1.

3.3

A detailed as-built layout design shall be produced for the facility.

APPLICATION OF FACILITY LAYOUT METHODOLOGY 1.

3.4

The method used for optimising the layout shall be documented to provide an auditable framework.

REVIEWS PER PROJECT PHASE 1.

The layout reviews shall use a structured and auditable assessment methodology. This review ensures that the requirements of other disciplines have been incorporated in the layout design and to eliminate possible clashes and to ensure the design is ALARP.

4.

GENERAL LAYOUT CONSIDERATIONS AND ORIENTATION

4.1

LAYOUT DESIGN CRITERIA Facilities with good layout are economic, safe and easy to operate and maintain. Good layout is a key factor in preventing escalations of fires and explosions and in minimising the effects of emergencies.

4.1.1

HSE

4.1.1.1

Maximize natural ventilation Wherever possible, maximum use should be made of natural ventilation and open structures to disperse flammable vapours and reduce the likelihood of flammable clouds accumulating. 1.

4.1.1.2

Refer to DEP 37.76.10.10-Gen for requirements for non-natural ventilated areas

Minimise escalation of ignited flammable release or release of very toxic substances Very toxic substances are those which are as specified either “very toxic-acute”, “very toxic-chronic”, or “very toxic-environment” in Part III of DEP 01.00.01.30-Gen. 1.

In the event of explosions, large fires, vessel rupture, or major leaks, personnel, environment and assets shall be protected against escalation (domino effect).

2.

Distance or suitable physical barriers shall be provided to prevent the potential escalation of incidents from the hazardous areas towards the support function areas such as the control room, offices, accommodation, temporary refuge (TR), and safety

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critical systems such as fire pumps, emergency generators and telecommunications, and personnel. Minimise probability of ignition A primary method of minimising ignition potential is by the adoption of Hazardous Area Classification (HAC). Hazardous areas are defined as those areas in which a flammable atmosphere may be present at significant frequencies and volumes. Hazardous areas are further subdivided into zones, which reflect the degree of probability of the existence of flammable atmospheres. These zones provide the basis for the selection and protection of electrical equipment in the area concerned, as well as other potential sources of ignition. References:

•

DEP 80.00.10.10-Gen - AREA CLASSIFICATION (AMENDMENTS/SUPPLEMENTS TO IP 15) for most of the globe.

•

DEP 80.00.10.13-Gen - AREA CLASSIFICATION AND ELECTRICAL EQUIPMENT SPACING FOR NORTH AMERICAN APPLICATION for US and Canada.

•

DEP 33.64.10.10-Gen. - Electrical Engineering Design; for most of the globe.

•

DEP 33.64.20.10-Gen - Electrical engineering design for North American application; for US and Canada.

3.

Continuous permanent ignition sources, such as electric power generators and flare tips shall always be installed in areas classified as 'non-hazardous.

4.

The layout shall provide the maximum practical separation between: a.

high-risk and low-risk equipment;

b.

the TR and: i.

systems with hydrocarbon-containing inventory and potential sources of ignition;

ii.

wellhead areas;

iii.

gas compressions.

5.

The layout shall provide decreasing hazard potential towards the support functions.

6.

Non-hazardous utilities/areas should be located so that they will act as a barrier between the hazardous areas and support functions.

7.

Location of support function areas and relevant safety critical systems (4.1.1.2 Item 2) shall account for environmental conditions (e.g., prevailing winds).

8.

Hydrocarbon inventories shall be demonstrated as ALARP by including process modelling results, number and size of equipment/piping and the number and location of isolation valves in the ALARP study.

9.

The risk of loss of containment shall be minimised by reducing the possibility of mechanical damage.

10. Hydrocarbon equipment shall be protected from dropped objects 11. Equipment should be located in such a way that the product flow is logical and pipe lengths are kept to a minimum. 12. Accumulation of liquid pools or the spreading of pools between areas and towards the safe locations shall be prevented. 13. Refer to DEP 37.14.10.10-Gen for design of deck drain systems.

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14. The layout shall include correct positioning of ESD valves (See section 4.5.3) and depressurising valves, ventilation inlets and outlets, engine inlets and exhausts, vents, flares, control rooms, fired heaters, doors, and cranes, to allow for safe operation. 4.1.1.3

4.1.2

Provision of suitable means for escape, temporary refuge (TR) and evacuation. 1.

Refer to DEP 37.17.10.11-Gen for requirements related to escape, evaluation, and TR.

2.

Access from the helideck to the LQs shall not be through hazardous areas.

3.

Availability of at least one escape route under all credible events shall be demonstrated.

Installation 1.

4.1.3

4.1.4

Operation/maintenance 1.

The location of equipment, and the spacing between them, shall be designed for normal movement of equipment and personnel, for security, emergency evacuation, fire-fighting, and accessibility for operation, maintenance and workovers.

2.

Refer to DEP 30.00.60.20-Gen. for details related to equipment spacing and clearances.

3.

Material handling studies shall be performed to determine adequate means of mechanical handling of equipment, storage/lay-down areas and space management to ensure that lifting and handling operations can be performed in a safe and effective manner.

Dropped Objects 1.

4.2

The layout of the facility shall enable its feasible installation, including construction, offshore hook-up and commissioning.

A dropped object study SHALL [PS] be undertaken to evaluate the impact energy and potential damage caused by dropped objects, based on crane usage and objects lifted during construction and operational activities.

FACILITY ORIENTATION 1.

The orientation of a fixed orientation facility shall be selected based on the predominant environmental characteristics, specifically wind rose, sea state, swell, and currents. a.

Additional considerations include the sea bed topography, the routing of connecting subsea pipelines/umbilicals/risers (4.5), and limitations of service vessels and jack-up rigs.

2.

Hazardous areas, particularly high pressure hydrocarbon systems, shall be located as far as practicable from the TR and downwind, so that any gas leaks are least likely to reach the TR.

3.

A vent or flare should be positioned so that the vented gasses, flame or fumes are least likely to be blown across the facility.

4.

Helicopters should be able to land on the helideck into the wind.

5.

Boat landings should be oriented on the lee side of the facility.

6.

Service vessels should be accessible to the facility cranes and be provided with a sheltered lee side.

7.

Semi-submersible drilling tenders or jack-up rigs should be sited on the lee side of the facility.

8.

Hot exhausts from both equipment on the facility or regular supply boats shall not interfere with crane, helicopter, production or drilling operations and the living quarters.

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9.

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Hot exhausts from equipment both on the facility and on regular supply boats shall not be drawn into gas turbine air intakes.

10. The orientation of the facility should be such that maximum benefit of natural ventilation through the process areas, to disperse flammable vapours, will be obtained. 11. HEMP and QRA techniques shall be used to support the facility layout selection process for weather-vaning vessels. a.

For weather-vaning floating facilities, the risk of smoke or gas ingress to the TR shall be demonstrated to be ALARP. For vessels that weather vane, such as turret moored FPSO, the stern of the vessel will intrinsically be driven down wind.

12. Refer to DEP 80.45.10.10-Gen for flare radiation level criteria. 4.3

FACILITY TOPSIDE LAYOUT 1.

Hazardous systems, such as oil separation, should be positioned near the wellheads or gas compression areas.

2.

The non-hazardous systems such as sewage or potable water may be located adjacent to and/or under the living quarters.

3.

All air inlets shall be located at the maximum practicable distance from a hazardous area, irrespective of the minimum distances required by area classification codes.

4.

Crane radii shall reach supply boats, lay down areas (including galley lay-down area), drilling bay, and helideck.

5.

Lay down areas and access ways shall be located and sized for safe and efficient equipment and personnel movements.

6.

Lay down areas and access ways shall have direct access to escape routes.

7.

Lay down areas should not be designated as escape routes. Protecting the evacuation points from a hazardous event, and ensuring access from the TR during an emergency, are critical layout considerations.

8.

Refer to DEP 37.05.10.10-Gen for layout requirements for the sea water systems and utility heat transfer systems.

9.

Refer to DEP 20.05.60.10-Gen for the aviation fuel bulk storage layout requirements.

10. Refer to CAP 437 Civil Aviation Authority - Offshore Helicopter Landing Areas: Guidance on Standards for helideck layout requirements. 4.4

PROCESS FLOW 1.

The layout should provide gravity flow to pumps and vessels, where required, and ensure that pump liquid head requirements (Net Positive Suction Head - NPSH) for control valves and flow meters are met.

2.

The layout should ensure that two-phase flow lines have minimal length, are not pocketed and minimise vertically upwards flows.

3.

The layout should minimise the length of interconnections, particularly in the cases of large diameter lines or expensive materials.

4.

The layout should minimize the length of piping runs to reduce weight as well as potential leak points.

5.

The layout should ensure that equipment spacing is satisfactory for the installation of flow meter runs.

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4.5

PIPELINES, FLOWLINES, RISERS AND ESD VALVES

4.5.1

Pipelines and Flowlines 1.

Pipelines, flowlines and expansion spools near the facility SHALL [PS] not be routed in the supply boat loading zone where there is unacceptable risk of damage due to anchor drag or dropped objects. Refer to DEP 31.40.10.10-Gen for additional requirements related to routing of pipelines near the facility.

4.5.2

4.5.3

Risers 1.

Risers SHALL [PS] be located and, if necessary, protected to prevent damage from vessel impact.

2.

Risers SHALL [PS] be located as follows: a.

at a distance from the TR and escape paths such that the risk is determined to be ALARP;

b.

where the risk of damage by dropped objects, including the potential failure of appurtenances such as caissons, is determined to be ALARP;

c.

where the risers can be supported from the structure; and

d.

where access is provided to undertake subsea/topsides inspection of the risers, including their supports.

ESD Valves 1.

Riser ESD valves SHALL [PS] not be located near or under the TR.

2.

The risk of damage to risers and riser emergency shutdown valves from fire or explosion SHALL [PS] be demonstrated to be ALARP.

3.

The ESD valves should be located above the splash zone and accessible for installation, testing, inspection, and maintenance.

4.

The supporting structure for the ESD valve shall be assessed for the loads from ESD weight, process flow dynamics, and wave loading.

5.

The risk of jet and pool fires at sea level shall be assessed to prevent damaging the riser below the shutdown valve.

6.

Hydrocarbon inventories above risers should be minimized.

5.

DETAILED LAYOUT REQUIREMENTS

5.1

HAZARDOUS EVENTS The layout of an installation may have a major effect on the consequences of fires and explosions and on the arrangements required for escape, evacuation and rescue (EER). 1.

The layout of the EER shall minimize the risk associated with fire and explosion to ALARP.

2.

Refer to DEP 37.01.10.11-Gen. for the structural integrity requirements for fire and blast events.

3.

The degree of confinement and congestion created by equipment, piping, and other facility components within a module should be minimised to reduce the effects of explosions.

4.

Mitigating the consequences of a hazardous event and reducing the likelihood of escalation should be by passive systems (e.g., separation by distance, safety barriers) instead of active systems (e.g., sprinklers).

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5.2

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EVACUATION OF PERSONNEL 1.

At least one evacuation route shall provide a safe egress during a blowout or major hydrocarbon release. Refer to Section (4.1.1.3) for general requirements related to evacuation routes.

2.

Minimal facilities without helidecks (e.g., when the primary or only means of personnel transfer is by boat) may rely on life rafts with a minimum capacity of 150% of the maximum Personnel on Board (POB).

3.

Floating manned facilities shall have a 200% capacity for lifeboats/survival crafts based on the maximum POB.

4.

The 200% capacity for floating manned facilities shall be split equally port to starboard (or side to side) for diversity of evacuation routes in the accidental damage condition (list).

5.

For floating manned facilities, lifeboats/survival crafts shall be located so that they can be launched safely and clear any parts of the hull under the intact condition and at a 20 degree outboard inclination.

6.

Protected escape routes may be provided from the TR to the helideck and lifeboats/survival craft, if required. Refer to DEP 37.17.10.11-Gen for the requirements for the TR.

7.

Where throw overboard life rafts are used for evacuation, personnel evacuation systems such as ladders or Donut descent device shall be provided to ensure safe transfer of personnel from the facility to the sea during an emergency. Refer to DEP 80.80.00.10-Gen for the requirements for lifesaving appliances.

8.

Living quarters (LQ) should be located upwind or crosswind of the hydrocarbon facilities, based on the prevailing wind direction.

9.

With respect to spills and/or fires on the sea the location of the living quarter should be such that leaks or spills will tend to drift away from the accommodation and TR under the prevailing conditions.

10. Lifeboats/survival craft and helideck should be sited so that personnel can be quickly and efficiently mobilised and evacuated. 11. The LQs should be located board so that a habitable environment can be maintained with no excessive noise and vibration from adjacent machinery. 5.3

IGNITED BLOWOUTS AND PROCESS ORIGINATED EXPLOSIONS 1.

2.

The LQ and helideck shall be segregated as far as practicable from: a.

the wellhead area, in order to maximise their integrity in the event of an ignited blowout; and

b.

the process areas.

Controlling and mitigating the effects of explosions should be achieved by using one or more of the following: a.

the layout of equipment and piping within a module/area to reduce the effects of congestion and blockage;

b.

open areas, grated decks and blast relief panels to relieve the build-up of pressure;

c.

blast walls designed to resist and/or contain blast loads;

d.

equipment layout, so as to minimise pressure levels;

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3.

The effect of venting and layout shall be validated by the use of explosion modelling techniques.

4.

For installations in temperate areas, the application of natural ventilation, with no substantial obstacle to the free dilution of gas or vapour into the atmosphere, should be maximized in order to reduce the likelihood and size of potentially explosive accumulations of hydrocarbon/air mixtures. Fully or partially open decks would facilitate such natural ventilation.

5. 5.3.1

Layouts shall not contain “dead pockets” where explosive mixtures can collect.

Containment of well blowout In developing the topsides facilities layout, the consequence of ignited well blowouts is assessed. The location of the well bay will be largely driven by the type of substructure or floating facility and the preferred installation method. Two drilling concepts are centre bay and end bay drilling.

5.4

1.

The facility deluge system should be designed to contain a well fire.

2.

Passive fire protection may be used to protect critical structures and equipment from the effects of hydrocarbon fires to prevent escalation for a specified endurance period.

3.

To allow external intervention of a well fire, unobstructed access to the wellhead area, blowout preventer, and surrounding structure should be provided.

4.

In the case of a centre bay drilling arrangement, firewater access from at least two sides shall be provided.

5.

In the case of an end bay drilling arrangement, local monitors or deluge systems may be used.

6.

Refer to DEP 80.47.10.12-Gen. for the requirements for water-based fire protection systems for offshore facilities.

7.

Collection and retention of hydrocarbons on the mezzanine and cellar decks should be minimised by the use of grated decks.

FIRE WALLS AND SYSTEMS 1.

The topsides facilities layout should minimise the likelihood of the escalation of a fire through use of one or more of the following: a.

fire walls that allow segregation of process systems so that, on detection of a fire, all pipework and equipment in one fire zone can be isolated and depressurised;

b.

provision of passive fire protection, such as safety barriers;

c.

provision of active fire protection systems, such as sprinkler systems. In many cases the walls will function as blast and fire walls, and their location can have a significant influence on the sizing of the fire water pump.

5.5

AREA CLASSIFICATION 1.

5.6

Refer to DEP 80.00.10.10-Gen and DEP 80.00.10.13-Gen for guidance on spacing between hazardous and non-hazardous equipment.

PIPING 1.

Refer to Part III of DEP 31.38.01.24-Gen. for the layout requirements for piping.

2.

The layout of piping should account for the following: a.

personnel safety, e.g., avoid tripping and overhead hazards;

b.

compatibility with vessel, pump and equipment packages;

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c.

provision of suitable pipe supports;

d.

adequate space to be provided for expansion loops, future flanges, manifolding, orifice runs, utility service stations, etc;

e.

pipe routings not penetrating blast or fire walls, unless proper rated penetration details are provided;

f.

equipment isolation facilities;

g.

equipment accessibility for operation and maintenance;

h.

minimised pipe runs for optimum process condition;

i.

the need for pipework to be flexible and avoid high piping loads on equipment;

j.

pipe routings as far as possible not obstructing venting areas;

k.

avoiding underdeck pipework unless for safety reasons;

l.

locations where mechanical damage is unlikely.

3.

Piping containing hazardous fluids should not be routed through non-hazardous areas.

4.

Any piping containing hazardous fluids that is routed through non-hazardous areas shall be all welded (no flanges).

WELLHEAD AND DRILLING EQUIPMENT 1.

The wellhead area shall be protected from sources of ignition.

2.

The wellhead area shall be adequately ventilated. Ventilation could be either natural or pressurized, depending on the requirement to protect people from the environment.

3.

The wellhead area should have open sides and ends and grated floors.

4.

Adequate space should be allowed for expected laydown requirements in the wellhead area and adjacent decks.

5.

The wellhead deck area shall be designed to accept expected laydown loadings.

6.

The wellhead hydraulic power packs should be located in a Zone 2 (Class I, Division 2) area to prevent gas migration to non-hazardous areas. a.

7.

The location of the wellhead hydraulic power packs should be blast protected and remote from the wellhead area to allow shutdown in the event of a major incident.

The driller's console should have good visibility through the “V-door” and to the other equipment, such as the draw-works, which are necessary for the safe operation of the rig.

6.

DETAILED LAYOUT CONSIDERATIONS

6.1

OPERATIONS AND MAINTENANCE REQUIREMENTS

6.1.1

General 1.

A maintainability study should be carried out during conceptual design for maintenance and operations aspects.

2.

The plot area required for pulling heat exchanger bundles should be indicated on the lay-out drawings to verify the space requirements.

3.

The layout of the floors and surrounding drains (especially for the drilling facilities) should enable an efficient and safe working environment.

4.

The drains should be arranged to reduce slipping hazards and prevent accumulation of fluids.

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6.1.3

DEP 80.00.10.12-Gen. February 2019 Page 16

Refer to DEP 30.00.60.20-Gen. for requirements related to Human Factors Engineering (HFE).

Access 1.

Operating and inspection points should be accessible and visible from operating aisles, preferably without the help of auxiliary facilities and ladders.

2.

Equipment requiring frequent maintenance should be accessible.

3.

Equipment parts, instruments, valve hand wheels, and piping should be accessible from access aisles, but not protrude into them.

4.

The location of normal entrance/exit points for personnel should enable easy access to work areas.

5.

External access ways should be provided, as far as possible, at each level and around the perimeter facility.

6.

Walkways should be at a constant elevation and stairs positioned to optimise access during operations.

Lifting 1.

The requirement for specialist rigging and associated scaffolding should be kept to a minimum.

2.

The maintainability study shall identify lifting and removal requirements to be included in the materials handling studies in each project phase. a.

3. 6.1.4

For example, Pad eyes should be provided for equipment that requires frequent removal for maintenance, such as: i.

Major control valves and actuators.

ii.

Large relief valves.

iii.

Filters/coalescers.

iv.

Choke valves on Xmas trees.

v.

Hydraulic actuators.

vi.

Heat exchangers.

The layout should prevent the requirement for lifting operations over live hydrocarbon equipment.

Laydown areas 1.

Laydown areas should be provided for all items where access is needed for component or equipment removal, such as turbines, or for maintenance, such as heat exchanger tube bundles, or for storage of consumables.

2.

Laydown areas may be shared between equipment in order to minimise the deck space required.

3.

Exterior laydown areas should be provided at each deck level depending on crane location and anticipated usage.

4.

Individual laydown areas should provide 0.75 m (2 ft., 6 in) clearance in all four directions around the largest items to be placed there.

5.

Where trolley access is required to reach a laydown area, the trolley access route shall have clearance for the trolley and its load.

6.

Access routes from workshops and stores to laydown areas should be direct.

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6.2

INSTRUMENTATION

6.2.1

Facility control centre

6.2.2

1.

The Facility Control Centre (FCC) should be in a non-hazardous area.

2.

The FCC should be protected from major incidents.

3.

The FCC should be as far away as possible from the wellheads, risers and gas compression.

4.

Where living quarters are provided, the FCC should be integral with the living quarters.

5.

The FCC should have access to office accommodation and the process/utility areas.

6.

The FCC should be away from sources of noise and vibration (e.g., emergency generators, air compressors).

7.

Allowance in the FCC should be made for the location, installation and maintenance of the HVAC equipment and ducting.

8.

Fire and blast protection for the FCC should be in accordance with the regulatory requirements for TRs.

Local control panels/rooms 1.

Accessibility of any Safety Critical Equipment (e.g., IPS, FGS systems) located in local control panels or rooms shall be provided for servicing. a.

6.2.3

Refer to (4.1.3 Item 1) for operational/maintenance requirements.

Cabling 1.

The physical protection, electromagnetic current (EMC) considerations, and routing of redundant network cables should be accounted for in the facility layout to ensure maximum communications robustness, e.g., FCC to local control rooms, to packaged units.

6.3

SAFETY EQUIPMENT

6.3.1

Helideck 1.

The platform helideck layout shall adhere to regional regulatory requirements and UK CAP 437.

2.

The platform helideck should allow helicopter access from three sides.

3.

The platform helideck should be located in close proximity to the living quarters.

4.

Facilities should be installed on the helideck to accommodate aviation fuel dispensing package and fire monitors.

5.

The helideck should be located away from the effects of turbine exhaust and flare.

6.

The helideck should be located such as to allow helicopters to approach and depart against prevailing winds. a.

High obstacles like flare, radio tower, cranes, etc., should not hamper helicopter operations.

7.

Computational fluid dynamics (CFD) shall be used to demonstrate that the elevations between the top of the helideck and gas turbine exhaust point prevent heated air during helideck operations.

8.

Helideck arrangements shall be subject to the approval of the Principal. The Principal’s Aviation group should be involved early to ensure acceptable helideck arrangements.

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Lifeboat/survival craft The type of lifeboats/survival craft, e.g., free fall type or davit type, would be dependent on the geographical area and vessel type.

6.3.3

6.4

1.

Lifeboats/survival craft embarkation areas should provide sufficient space for mustering, donning of lifejackets and lifeboat abandonment suits.

2.

Space should be allowed for storage bins for the lifejackets and abandonment suits.

3.

When no local standard exists, the clear deck area for the muster area of 0.35 m 2 (3.75 ft2) per person shall be used.

4.

Protected access should be provided along each side of the lifeboat/survival craft, if it allows boarding from both sides.

Firewater systems 1.

Refer to DEP 80.47.10.12-Gen for detailed requirements for firewater systems.

2.

Fire pumps should be located on the lower decks in a non-hazardous area.

PROCESS EQUIPMENT 1.

6.4.1

Refer to DEP 30.00.60.20-Gen. for requirements related to spacing and clearance.

Vessels 1.

The bottom tangent line of vertical vessels or the underside of horizontal vessels should be located at least one meter above deck level.

2.

Instrument and valve access should be located so that there is head room available. a.

6.4.2

6.4.3

This may include the space between the roof beams.

Process pumps 1.

Pumps should be laid out to provide for the straight length requirement of the suction lines.

2.

The pump location should minimize total suction line lengths.

3.

Space adjacent to high pressure pumps should be provided for minimum flow and balance piston control sets.

4.

Pump location should satisfy NPSH requirements.

5.

The layout should allow for motors to be removed for maintenance.

6.

There should be sufficient space to remove the pump impellers, so that they can be moved to the laydown areas and/or workshops using a trolley.

7.

Space for mechanical handling equipment, such as runway beams, shall be provided.

8.

For reciprocating pumps, additional space should be allowed for rod and piston removal and for pulsation dampeners.

9.

The location of submersible water pumps should be arranged so that a straight lift by the facility crane through an access hatchway or by purpose-built permanent lifting facilities is available for maintenance and/or replacement.

Compressors 1.

Compressor nozzle orientation should be selected to eliminate the need for removal of piping for maintenance. Compressors may be located with their nozzles vertically upwards or downwards. If downwards, for a horizontally split machine, the casing can be removed without disturbing the piping and it is possible to locate the compressor high in the facility with a light weather cover, allowing easy access.

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2.

Space should be allowed for compressor engine/motor, cylinders and piston rod removal and runway beams to facilitate transporting them via access ways to the lay down area.

3.

Allowance for temporary strainers on compressors should be made in the piping layout.

4.

On barrel type compressors, space should be allowed for removal of the rotor cartridge.

5.

Space should be allowed for compressor large bore piping, isolation and non-return valves.

6.

Space should be allowed for compressor minimum flow recycle/anti-surge control valves sets.

7.

Space should be allowed for compressor blowdown valves.

8.

The compressor utility equipment should be incorporated in the base plate.

9.

If the compressor utility equipment is not incorporated in the base plate, allowance should be made for oil tanks, pumps, and exchangers adjacent to the compressors so that the oil drains back to the tank by gravity.

10. Suction lines should be short and direct, provided that any requirement for straight lengths of pipe work are incorporated. 11. The compressor suction lines should be self-draining, either back into the upstream vessel or forward into the compressor itself. 12. No potential traps or long horizontal sections should be designed into the piping system. 13. The compressor casing drains should be arranged such that the liquid accumulated in the compressor casing flows back to the upstream suction vessel. The drains may then be left open whenever the machine is not running. 14. The design of pipe supports should account for the operating loads (e.g., vibration) for reciprocating machines. 15. Required elevation differences (e.g., suction knock-out vessels relative to compressors), should be accounted for. 6.4.4

Heat exchangers

6.4.4.1

Shell and tube heat exchangers

6.4.4.2

1.

Shell and tube heat exchangers should be stacked.

2.

Shell and tube heat exchangers should not be stacked more than two high.

3.

Space should be allowed for removal of a tube bundle and the floating head of a shell and tube heat exchanger.

4.

Exchangers in condensing duty should be located so that they drain freely to the downstream scrubber/knock out vessel.

5.

Access ways should be provided to permit the tube bundle to be removed to the local laydown area or to the workshop.

Air fin coolers 1.

Refer to DEP 31.21.70.10-Gen for requirements related to air fin cooler design.

2.

Air fin coolers should have free ambient air flow to the cooler and unimpeded exhaust flow.

3.

Access should be provided to the header boxes, the fan, and motor of air fin coolers.

4.

Large air fin coolers should be mounted with their tubes in a horizontal plane.

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DEP 80.00.10.12-Gen. February 2019 Page 20

Impact of hot air discharge on operations and personnel (e.g., helicopter flight routes, crane operators, derrick operators) should be accounted for in locating air fin coolers.

6.5

UTILITIES

6.5.1

Gas turbines/generators 1.

Gas turbines and generators should be located in a non-hazardous area.

2.

Air intake should be sited the maximum possible distance from hazardous areas.

3.

Air intake should be sited no less than 3 m (10 ft.) above 100-year storm wave level in order to avoid water ingress.

4.

The air intakes should be located so that powder and dust do not become ingested. Since most particulate matter in the air is generated on the facility from drilling operations and grit blasting, the preferred arrangement is for air intakes to be located above the upper deck level.

5.

Re-circulation from the exhaust back to the inlet should be prevented for gas turbines/generators.

6.

Gas turbine exhausts should be pointed vertically upwards and discharge above the helideck.

7.

Exhaust flue emissions should be such that it does not interfere with helicopter, production, drilling and crane operations.

8.

Exhaust flue emissions should be directed so they do not become ingested in the HVAC or engine intakes.

9.

Location of gas turbine/generator equipment should allow for removal and handling of critical components for maintenance, such as gas generators or hot path components.

10. Gas turbine/generator equipment should be located adjacent to high voltage switchgear. 6.5.2

6.5.3

6.5.4

Electrical switchgear 1.

Switchgear rooms should be located in a non-hazardous area.

2.

Switchgear rooms should be provided with two means of access.

3.

Ventilation and/or heating should be provided in accordance with the requirements of the switchgear.

4.

Allowance should made at the conceptual design stage for the space and access required for ventilation and/or heating of switchgear rooms.

5.

Switchgear cabinets should have both front and rear access.

6.

Water or other fluid services, should not be routed through or above switchgear rooms.

Workshops 1.

Workshops should be located in an area classified as non-hazardous.

2.

Mechanical/fabrication workshops should be located adjacent to the lay down area.

Stores 1.

General stores should be located in an area classified as non-hazardous.

2.

The stores should be located adjacent to a laydown area and the workshops.

3.

The chemicals and explosive store should: a.

Be located as far as is practicable from the TR, escape routes and muster areas.

b.

Have two separate parts, for detonators to be stored in isolation.

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5. 6.5.5

6.5.6

DEP 80.00.10.12-Gen. February 2019 Page 21

c.

Not be sited near the radioactive store.

d.

Be of a jettisonable type.

e.

Be located on walkway extensions to make it easier to barrier off.

The radioactive store should: a.

Be located as far as is practicable from the TR.

b.

Not be sited near an explosive store.

c.

Be of the jettisonable type.

d.

Be located on walkway extensions to make it easier to barrier off.

The radioactive store shall have a barrier at 7.5 µ Sieverts/hour.

HVAC 1.

Natural ventilation should be used where possible for process and utility areas.

2.

Hazardous and non-hazardous areas shall have separate HVAC systems.

3.

The following should be validated by analysis (e.g., CFD) or empirical data (e.g., experience, wind tunnel testing): a.

adequacy of natural ventilation for process or utility areas;

b.

satisfactory helideck operations with reference to aviation authority codes and exhaust plumes;

c.

suitable locations of HVAC air intakes and machine air intakes in relation to the temperature and pollution effects of exhaust plumes during normal operation;

d.

optimum location of HVAC air intakes with regard to emergency events.

4.

All HVAC air inlets and outlets should be located at the maximum practicable distance from hazardous areas.

5.

All HVAC air inlets and outlets should be located with sufficient separation to prevent recirculation.

6.

Space allowance should be included for permanent access to enable the maintenance and operation of HVAC plant, including fire dampers.

7.

Space shall be provided for combustion air intakes and the machine enclosure air intakes, ducts and fans on major vendor-supplied equipment packages supplied with integral HVAC (e.g., turbines/generators).

Cranes Refer to DEP 37.92.10.30-Gen. (Offshore pedestal-mounted cranes (amendments/supplements to API SPEC 2C) for general requirements related to cranes. 1.

The facility cranes should be optimally positioned to ensure that all necessary maintenance, servicing and emergency functions can be performed within the load/radius capability.

2.

The facility cranes should reach the supply boat loading zone, piperack, drilling 'V' door, laydown areas, and the helideck. Multiple cranes may be considered to account for site specific challenges (e.g., to provide a lee side during adverse weather). Monorails or other material handling systems may also be considered as alternatives for access.

3.

When multiple cranes are provided, they should be located so that they can be used to service each other.

4.

Crane operators should have good visibility of the laydown areas in order to safely load and off-load supply boats.

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6.5.7

6.6

DEP 80.00.10.12-Gen. February 2019 Page 22

5.

Cranes should be located with enough space to allow slew-ring change out and servicing of the boom.

6.

A boom rest shall be provided for the crane boom.

7.

Laydown area for periodic block inspection shall be provided.

8.

Hydrocarbon-containing or essential control equipment located directly under the swing zone of a permanently installed crane shall be protected against dropped objects to achieve ALARP.

Caissons 1.

Fire or service water caissons should be located inside the jacket structure or inboard side of hull columns on floating facilities to prevent any collision damage.

2.

Fire or service water caissons should be positioned adjacent to jacket horizontal bracing for ease of support.

3.

Vertical and horizontal separation of fire or service water pump and effluent caissons should be sufficiently large to prevent recirculation of drilling mud, sewage, effluent, or warm water.

4.

Overboard dumps should be routed below sea level to avoid high splash zone forces and interference with supply boats.

5.

The location of firewater caissons should consider the factors described in section (6.3.3) Firewater Systems.

FLARE SYSTEMS 1.

The layout of the facility shall prevent unacceptable levels of thermal radiation or fumes in manned areas or near sensitive equipment during flaring. Refer to DEP 80.45.10.10 for thermal radiation limits.

2.

The use of a flare tower or flare boom should be assessed for each project. In general, a tower is lighter but requires a larger knock out vessel and has a higher likelihood of burning dropout on the facility.

3. 6.7

FACILITY DRAINS SYSTEMS 1.

6.8

The distance between the flare and helideck should be maximized.

Facility drains systems should be identified as follows: a.

open Non-Hazardous Area Drains;

b.

open Hazardous Area Drains;

c.

closed Hazardous Drains;

d.

instrumentation Drains/Vents.

2.

A drains system should allow for the gravity drainage of the fluids down to the collection tank or drains caisson.

3.

Solid decks should be provided with adequate drainage facilities to a central drainage collection point.

4.

Areas containing liquid hydrocarbons should be connected to the hazardous drain system and provided with drip pans.

PIG TRAPS 1.

The locations of the pig traps should account for the pulled bends in the outboard pipelines.

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DEP 80.00.10.12-Gen. February 2019 Page 23

2.

Facilities and space shall be provided for operation of equipment (e.g., insertion and removal of pipeline pigs).

3.

Means for handling pigs between the pigging area and crane laydown area should be provided.

4.

Pig launchers and receivers should be located at the edge of the facility.

5.

Pig launchers and receivers should be pointed away from adjacent equipment and structures.

ELECTRIC CABLE LAYOUTS 1.

The number and length of critical cable runs should be minimized by properly locating the equipment.

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7.

DEP 80.00.10.12-Gen. February 2019 Page 24

REFERENCES In this DEP, reference is made to the following publications: NOTES:

1. Unless specifically designated by date, the latest edition of each publication shall be used, together with any amendments/supplements/revisions thereto. 2. The DEPs and most referenced external standards are available to Shell staff on the SWW (Shell Wide Web) at http://sww.shell.com/standards/.

SHELL STANDARDS DEP feedback form

DEP 00.00.05.80-Gen.

Definition of temperature, pressure and toxicity levels

DEP 01.00.01.30-Gen.

Fuel systems

DEP 20.05.60.10-Gen.

Human Factors Engineering - Physical Workspace Design

DEP 30.00.60.20-Gen.

Air Cooled Exchangers – Selection and Application

DEP 31.21.70.10-Gen

Piping – Engineering and layout requirements

DEP 31.38.01.24-Gen.

Electrical Engineering Design

DEP 33.64.10.10-Gen.

Electrical engineering design for North American application

DEP 33.64.20.10-Gen.

Design of offshore topsides facilities against fire and blast loading (amendments/supplements to API RP-2FB)

DEP 37.01.10.11-Gen.

Design of seawater systems for offshore and onshore

DEP 37.05.10.10-Gen.

Design of offshore temporary refuges

DEP 37.17.10.11-Gen.

HVAC for offshore installations

DEP 37.76.10.10-Gen

Offshore pedestal-mounted cranes (amendments/supplements to API SPEC 2C)

DEP 37.92.10.30-Gen.

Area classification (amendments/supplements to IP 15)

DEP 80.00.10.10-Gen.

Area classification and electrical equipment spacing for North American application (amendments/supplements to API RP505/ API RP500)

DEP 80.00.10.13-Gen.

Design of pressure relief, flare and vent systems

DEP 80.45.10.10-Gen

Water-based fire protection systems for offshore facilities

DEP 80.47.10.12-Gen.

Lifeboats and rescue boats (amendments/supplements to SOLAS, LSA and DNV-OS-E406)

DEP 80.80.00.10-Gen.

Shell HSSE & SP Control Framework, Design Engineering Manual (DEM) 1 – Application of Technical Standard https://eu001-sp.shell.com/sites/AAAAA8432/CF/default.aspx

DEM1

BRITISH STANDARDS Standards for offshore helicopter landing areas: guidance on standards Issued by: United Kingdom Civil Aviation Authority

UKCAP 437

INTERNATIONAL EXTERNAL STANDARDS External standards associated with layouts of offshore facilities are specified regionally and their requirements need to be incorporated into the layout to meet local regulations

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