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Shell U.K. Limited

Bardolino Field Development Project

PIPELINE WORKS AUTHORISATION APPLICATION

BARD-10-SH-0004

PROJECT REVISION HISTORY

A02 Jan 13 Item No’s amended DECC VM KM BG

A01 Dec 08 For Approval VM VK BG

R 01 Aug 08 For Submission VM VK BG Rev Date Issue Description Prepared by

Checked

by Approved Approved

Shell U.K. E & P

Bardolino Field DevelopmentPipeline Works Authorisation Application

Doc No. BARD-10-SH-0004

PIPELINE WORKS AUTHORISATION APPLICATION

Table of Contents

1.0 INTRODUCTION

2.0 General Information

2.1 Pipelay and Trenching

2.2 Crossings

2.3 Bardolino Manifold

2.4 Pipeline Tie-ins

2.5 Control System

2.6 Offshore Installation

2.7 Summary

2.8 De-Commissioning

2.9 Environmental Statement

2.10 Trans-Boundary Environmental Impact

2.11 Agreement of Licensees Across who’s Blocks the Pipelines will Traverse.

2.12 Agreement on whose behalf Shell U. K. Limited are Acting

2.13 Discharge of Liability Statement

2.14 Field Holders, Owners, Users and Operators.

2.15 Applicants Nominated Contact

3.0 ROUTE DETAILS

3.1 Summary

4.0 TECHNICAL DETAILS

4.1 Bardolino Production Pipeline

4.2 Bardolino Gas Lift Pipeline

4.3 Bardolino Electro-Hydraulic Chemical Injection

4.4 Hydraulic Control and Chemical Table

4.5 Reservoir Fluids Composition

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5.0 TABLE A’s AND SCHEMATICS

TABLE 5.1

6” PROD. PIPELINE PL2634 – (DRAWING NO BARD-25-SH-0002)

TABLE 5.2

3” GAS LIFT PL2635 (REF DRAWING NO BARD-25-SH-0002)

TABLE 5.3

ELECTRO/HYDRAULIC CHEMICAL INJECTION UMBILICAL PLU2636– HOWE PTS

MANIFOLD TO BARDOLINO WELL

TABLE 5.4

ELECTRO/HYDRAULIC CHEMICAL INJECTION UMBILICAL PLU2636JVPS

6.0 DEPCON APPLICATION

7.0 APPENDICES

Appendix 1 FIELD LAYOUT DRAWINGS

Appendix 2 FIELD PARTNERS LETTERS OF AGREEMENT

Appendix 3 PIPELINE ROUTE SURVEY (EXTRACT)

Appendix 4 ADMIRALTY CHART

Shell U.K. E & P



1.0 INTRODUCTION

In accordance with the Petroleum Act 1998 and under the Guidance of the Department of

Trade and Industry Oil and Gas directorate, “Guidelines for the Completion of Pipeline

Works Authorizations June 2003” Shell U K Exploration and Production Limited, apply for

authorization to construct and use a 6-inch Production Pipeline, 3-inch Gas Lift Pipeline

and an Umbilical for the Bardolino Field located in block 22/13a back to the Nelson

Platform via the existing Howe infrastructure.

Shell U.K. E & P



2.0 GENERAL INFORMATION

The Bardolino Field is located in Block 22/13a with centre point drill location approximately

2 km east of the producing Howe field (block 22/12a), making it approximately 16 km east

of the Nelson Platform and approximately 162 km east north east of Aberdeen in a water

depth of 91 metres. The single well will be drilled from the edge of Bardolino block

(22/13a). It is an oil field with hydrocarbons mainly in Fulmar sand containing some 33.8

MMstb STOIIP (base case). The field will be produced to the Nelson production platform

connecting Bardolino to the existing Howe subsea infrastructure. The Howe infrastructure

has a design life to 2014, but assessments show that a 5-year extension is feasible.

The Bardolino ‘base case’ production profile is constrained at 10,000 stb/d. This profile is

based upon commercial agreement on allowable ullage in the Howe pipeline. Based on

the 10,000 stb/d case, the P50 FTHT is 122 deg C and the initial FTHP is 266 bara.

The project scope encompasses all work associated with drilling and completing a new

subsea well, and installation of the subsea architecture to facilitate production from this

well. The new Bardolino facilities will be designed for a minimum of 10 years field life.

A brief summary of the Subsea elements required for the Bardolino Development is as

follows:

• A 2 km 6” NB CRA production pipeline between the Bardolino manifold and the Howe

PTS

• A 2 km 3” NB carbon steel gas lift pipeline piggybacked onto the 6” production pipeline

• A single well slot subsea manifold, inclusive of two cooling spools, multiphase

flowmeter, and IOPPS system

• A Valve Protection Structure (VPS) near the Howe PTS, consisting of an actuated

isolation valve to enable remote isolation of the Bardolino field

• A new infield electro-hydraulic control umbilical for power/signal, hydraulic and

chemical transport from the Howe PTS to the Bardolino manifold

• A retrofitted Electrical Distribution Box (EDB) at the Howe PTS for power/signal

distribution

• Rigid tie in spools between the Howe PTS and Bardolino VPS, between the Bardolino

VPS and Bardolino pipelines, between the Bardolino pipelines and Bardolino manifold,

and between the Bardolino manifold and production tree

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• Control jumpers between Howe PTS and Bardolino VPS and between the Bardolino

manifold and production tree

2.1 Pipelay and Trenching

The new 6” NB insulated pipeline will be installed between the Bardolino drill centre to the

Howe PTS, a distance of approximately 2 km. The production pipeline material is

Corrosion Resistant Alloy (CRA) and will be insulated with a 5-layer PPF insulation coating

to provide for sufficient heat retention. The 3” carbon steel gas lift pipeline will be

piggybacked onto the production pipeline during installation and coated with a 3-layer PP.

The pipeline will be fabricated onshore, then laid from a reel using a dynamically

positioned vessel.

The pipeline and the umbilical will be trenched below seabed and both will be rock

dumped for upheaval buckling mitigation, stability, and to avoid potential issues associated

with fishing boats in the area. Pipeline target depth of lowering (from top of pipe) is a

minimum of 1.0 m below the natural seabed level. Deviations from the planned route will

be limited to a maximum of ± 5 m. Untrenched sections of the pipelines and umbilical -

namely leading up to and away from the trenches at each end will either be covered with

concrete mattresses or rock dumped to offer stability and protection from fishing activity

and dropped objects.

2.2 Crossings

There are no crossings.

2.3 Bardolino Manifold

The Bardolino subsea manifold shall provide the capability to tie-in production and provide

gas lift to the single Bardolino production tree. The manifold shall be located to facilitate

efficient rigid tie-in spool connections between the tree and manifold and between the

manifold and pipelines. The subsea manifold will include:

• Facilities for gas lift

• Multiphase flowmeter for product allocation

• Dual length cooling spool

• A subsea instrumented overpressure protection system (IOPPS).

• Future pig launcher connection

• A Subsea Distribution Unit (SDU) for power/signal and hydraulic distribution

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• A manifold subsea control module (SCM) plus mounting base (SCMMB).

• A subsea accumulator module (SAM) plus mounting base (SAMMB)

• Chemical injection point

In order to enable remote isolation of the Bardolino production pipeline a new 6-inch

actuated isolation valve shall be installed within a stand-alone structure near the Howe

PTS. The VPS shall have a dual header arrangement (one 8” NB and one 6” NB header)

to allow independent pigging of the Howe and Bardolino pipelines and shall be located to

facilitate efficient rigid tie-in spool connections between it and the Howe PTS and

associated pipelines.

2.4 Pipeline Tie-ins

Rigid spools will be used for all tie-ins and will consist of:

• 8” & 3” tie-in spools between Howe PTS and Bardolino VPS.

• 6” & 3” tie-in spools between Bardolino VPS and the Production and Gas Lift Pipelines

• 6” & 3” tie-in spools between Production and Gas Lift Pipelines and Bardolino

manifold.

• 6” & 2” rigid tie-in spools between Bardolino manifold and Bardolino production tree.

Production spools will be 25Cr CRA and gas lift spools will be carbon steel. Production tie

in spools shall be insulated to give the equivalent OHTC to the corresponding pipeline

All tie-in spools will be covered with rock and/or concrete mattresses to offer stabilisation

and protection from fishing activity and dropped objects.

2.5 Control System

Control of the Bardolino well shall be from the Nelson Platform via the existing Howe

umbilical and the new Bardolino umbilical, terminating with a UTA housed within the

Bardolino manifold structure. An electro-hydraulic chemical injection jumper will be

installed between the Bardolino manifold and the Bardolino well. Two subsea control

modules will be installed – one as part of the Bardolino tree for control of the tree and

downhole valves and sensors, and another in the manifold for control of the manifold

valves, multiphase flowmeter, and sensors.

The umbilical shall be laid in a separate trench from the pipelines. Untrenched sections of

the electro-hydraulic chemical injection umbilical and associated well jumpers, will be

Shell U.K. E & P



covered with concrete mattresses or rockdumped to offer stability and protection from

fishing activity and dropped objects.

2.6 Offshore Installation

Offshore installation of the pipelines, umbilical and manifold is planned to take place

during the 3rd Quarter of 2009, commencing with the installation of the pipeline planned

for July 2009. The envisaged activities are as follows:

• Pipeline Installation;

• Pipelines Trenching and Hydrotesting;

• Umbilical Pre-Cut Trenching

• Umbilical Installation

• Manifold Installation

• Installation of Tie-in Spools and Control Jumpers

• Testing and Pre-Commissioning

• Rock Dumping

• Mattress Protection

First production is targeted for the 1st quarter 2010.

2.7 Summary

The proposed Scope of Work will be carried out using well established standard

procedures, with no new materials or novel technology being employed.

2.8 De-Commissioning

Options for the de-commissioning of the pipelines will be considered at the end of ‘Field

Life’, and will adhere to Government policies and regulations in force at the time.

2.9 Environmental Statement

The Environmental Statement (ES) for the Bardolino development was submitted to the

DECC on 30th April 2008 and was approved by DECC on 7th October 2008.

The PON 15C for the Bardolino pipeline shall be submitted at the start of 1st quarter 2008

and will formally address the treated water chemical discharge requirements from an

environmental perspective. The first chemical discharges connected with the Bardolino

pipeline testing activities are scheduled to take place in July/August 2009 and are in

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relation to flooding of the new pipeline. The main pipeline installation and testing

programme is planned to commence in July 2009.

2.10 Trans-Boundary Environmental Impact

The development does not present a significant trans-boundary environmental effect, as

described in the ESPOO Convention.

2.11 Agreement of Licensees Across who’s Blocks the Pipelines will Traverse.

The Bardolino pipeline lies totally within licence block 22/12A licence No P077 and 22/13A

licence no P096 held by Shell U.K. Limited.

2.12 Agreement on whose behalf Shell U. K. Limited are Acting

Enterprise Oil Limited, on behalf of OMV U.K. Limited, makes the Pipeline Works

Authorisation application for the Bardolino field development. Copies of field partner letters

agreeing to the Bardolino development are contained in Appendix 2.0.

2.13 Discharge of Liability Statement

Liability insurance in respect of North Sea operations is arranged under the General Third

Party Liability Risk Insurance and the complementary arrangements effected under the

Offshore Pollution Liability Agreement (OPOL) of Shell U.K. Limited.

2.14 PWA Holders, Owners, Users and Operators.

2.14.1 Bardolino PWA Holder

Enterprise Oil Limited (Company Number 1682048)

Shell Centre

London. SE1 7NA

2.14.2 Bardolino Operator

Enterprise Oil Limited (Company Number 1682048)

Shell Centre

London. SE1 7NA

Shell U.K. E & P



2.14.3 Bardolino Field Owners and Users

Shell EP Offshore Ventures Limited (Company Number 1682052)

Shell Centre

London. SE1 7NA

OMV U.K. Limited (Company Number 01504603)

14 Ryder Street, London SW1Y 6QB.

2.15 Applicants Nominated Contact

Vera Kim

Subsea Engineer

Shell U.K. Limited.

Seafield House, Hill of Rubislaw, Anderson Drive,

Aberdeen, AB15 6BL

Tel. No. +44 1224 818450

Fax No. +44 1224 817700

E-Mail [email protected]

Shell U.K. E & P



3.0 ROUTE DETAILS

3.1 Summary

A pipeline route survey was undertaken by Shell on 20th December 2007, 14th March – 16th

March 2008 and 4th April 2008 at Blocks 22/12 and 22/13, the proposed Bardolino location

to the Howe Manifold. The fieldwork was undertaken as part of a series of seabed

surveys using the M.V. Sea Explorer and the M.V L’Espoir.

At the proposed Bardolino Well location (KP0.00), the water depth is 91.0m and at the

Howe Manifold 88.9m.

The seabed sediments throughout the majority of the route survey corridor comprise soft

slightly sandy clay with a veneer of silty sand with shell fragments.

Table 3.1

KEY CO-ORDINATES

All GRID co-ordinates are referenced to International Spheroid Datum (ED 1950) Transverse Mercator

Projection, Central Meridian 0°. Used for Construction Purposes

All GEOGRAPHICAL co-ordinates are referenced to WGS 84 Satellite Datum. Used by Mariners &

Governmental Bodies. ( Degrees Minutes Seconds)

FIELD LOCATION

ED50, TM 0° Eastings (m)

ED50, TM 0° Northings (m)

WGS 84 Datum

Latitude

WGS 84 DatumLongitude

Howe PTS Manifold 581 883.702 6 389 726.298 57° 38' 25.62"N 01° 22' 12.05"E

Bardolino Well 583 691.471 6 388 940.654 57° 37' 59.03"N 1° 24' 00.05"E

Bardolino Manifold 583 670.475 6 388 970.688 57° 38' 00.01"N 01° 23' 58.82"E

Bardolino Valve Protection Structure 581 933.899 6 389 698.691 57° 38' 24.70"N 01° 22' 15.04"E

Shell U.K. E & P



4.0 TECHNICAL DETAILS

4.1 Bardolino Production Pipeline

Length 2 km (Approx)

Design Temperature 120°C / -50°C

Design Pressure 345 barg

Material Super Duplex 25 Cr (UNS 32550)

Dimensions 6” NB, OD – 168.3 mm, WT – 12.7 mm

Coating 5 Layer PPF

Design Life 10 Years

Fluids to be Conveyed Oil

Flow rate 10,000 stbpd Peak

Hydrostatic Test Pressure 431 barg [TBC]

6-inch Tie-in Spools

Lengths 54 m (Approx) between the Bardolino VPS and Bardolino pipeline

50 m (Approx) between the Bardolino pipeline and Bardolino

manifold

39 m (Approx) between the Bardolino manifold and the Bardolino

tree



Material Super Duplex 25 Cr

Dimensions O.D. – 168.3 mm, W.T. – 14.3 mm

Coating TBD


Length 62 m (Approx)



Shell U.K. E & P



Material Super Duplex 25 Cr

Dimensions O.D. – 219.1 mm, W.T. – 15.9 mm

Coating TBD

4.2 Bardolino Gas Lift Pipeline




Material Carbon Steel - X65


Coating 3 Layer PP

Design Life 10 years

Flowrate 3 mmscfd Peak

Hydrostatic Test Pressure 486 barg


Lengths 62 m (Approx) between the Howe PTS and the Bardolino VPS

54 m (Approx) between the Bardolino VPS and Bardolino pipeline

50 m (Approx) between the Bardolino pipeline and Bardolino

manifold





Coating 3 Layer PP


Length 39 m (Approx)



Shell U.K. E & P





Coating 3 Layer PP

4.3 Bardolino Electro-Hydraulic Chemical Injection


Umbilical Diameter O.D. 104 mm

Design Life 10 Years

Fluids to be Conveyed Chemicals / Hydraulic Fluid

The umbilical shall contain conduits and cables as detailed in Tables 4.4 below.

4.4 Hydraulic Control and Chemical Table

NUMBER BORE FUNCTION RATED PRESSURE

1 ¾” Hydraulic Return 345 Bar 5000 PSI

2 ¾” LP Hydraulic supply 345 Bar 5000 PSI

3 ½” Spare 517 Bar 7500 PSI

4 ½” HP Hydraulic supply 517 Bar 7500PSI

5 ½” Scale inhibitor 517 Bar 7500 PSI

6 ¾” Spare 345 Bar 5000 PSI

7 ½” Spare 517 Bar 7500 PSI

8 ¾” Methanol 345 Bar 5000 PSI

9 ¾” Methanol 345 Bar 5000 PSI

Shell U.K. E & P



4.5 Reservoir Fluids Composition

Components Bardolino

Mole %

N2 0.87

CO2 2.96

C1 28.11

C2 8.79

C3 11.12

i-C4 2.12

n-C4 5.26

i-c5 1.91

n-C5 2.49

n-C6 3.20

Benzene 0.00

n-C7 4.59

Toluene 0.00

n-C8 4.58

e-Benzene 0.00

m-Xylene 0.00

o-Xylene 0.00

CBP1A* / CP1A* / CP2A* 5.08

CBP1B* / CP1B* / CP2B* 5.03

CBP1C* / CP1C* / CP2C* 4.60

CBP1D* / CP1D* / CP2D* 3.78

CBP1E* / CP1E* / CP2E* 2.71

CBP1F* / CP1F* / CP2F* 1.64

CBP1G* / CP1G* / CP2G* 0.79

CBP1H* / CP1H* / CP2H 0.37

CP2I*

CP2J*

C9+ SG 0.8751

C9+ MW 240

Shell U.K. E & P



5.0 TABLE A’S AND SCHEMATICS

Shell U.K. E & P


Doc No BARD-10-SH-0004

Table 5.1

6” PROD. PIPELINE PL2634 – (Drawing No BARD-25-SH-0002)

COL 1 COL 2 COL 3 COL 4 COL 5 COL 6 COL 7 COL 8 COL 9 COL 10 COL 11 COL 12

PIPELINE NUMBER

IDENT NUMBER

FROM

TO

DESCRIPTION OF MAIN

COMPONENT PARTS OF THE

PIPELINE

LENGTH (m)

EXT. DIA. (mm)

INT. DIA

(mm) W.T. (mm)

TYPE OF INSULATION

(mm)

MAXIMUM ALLOWABLE OPERATION PRESSURE

(barg)

PRODUCT TO BE CONVEYED

PL2634 Bardolino Well

57o 37’ 59.03” N 01o 24’ 00.05” E

Howe PTS Manifold 57o 38’ 25.62” N 01o 22’ 12.05” E

6” Production 2237.83m 168.3 142.9 12.7 5LPPF 345

PL2634 1 Bardolino Well

6” Drop Down Tie-In Spool

6” Drop Down Tie-In Spool 2.93 168.3 139.7 14.3 5LPPF 345 Produced Fluids

PL2634 2 6” Drop Down Tie-In Spool 6” Tie-In Spool 6” Tie-In Spool 14.49 168.3 139.7 14.3 5LPPF 345 Produced Fluids

PL2634 3 6” Tie-In Spool 6” Tie-in Spool 6” Tie-In Spool 22.23 168.3 139.7 14.3 Durapol 345 Produced Fluids

PL2634 4 6” Tie-In Spool Bardolino Manifold Bardolino Manifold 126.29 168.3 139.7 14.3 5LPPF 345 Produced Fluids

PL2634 5 Bardolino Manifold 6” Tie-In Spool 6” Tie-In Spool 20.13 168.3 142.9 12.7 5LPPF 345 Produced Fluids

PL2634 6 6” Tie-In Spool 6” NB Rigid Production Pipeline 6” Tie-In Spool 30.08 168.3 139.7 14.3 5LPPF 345 Produced Fluids

PL2634 7 6” Tie-In Spool 6” NB Rigid Production Pipeline

6” NB Rigid Production

Pipeline 1900 168.3 139.7 14.3 Durapol 345 Produced Fluids

PL2634 8 6” NB Rigid Production Pipeline 6” Tie-In Spool 6” Tie-In Spool 30.70 219.1 187.3 15.9 5LPPF 345 Produced Fluids

PL2634 9 6” Tie-In Spool 6” Tie-In Spool 6” Tie-In Spool 23.76 168.3 139.7 14.3 5LPPF 345 Produced Fluids

PL2634 10 6” Tie-In Spool Bardolino Valve Protection Structure

Bardolino Valve Protection Structure

5.40 168.3 139.7 14.3 Durapol 345 Produced Fluids

PL2634 11 8” Tie-In Spool 8” Tie-In Spool 8” Tie-In Spool 31.95 219.1 187.3 15.9 5LPPF 345 Produced Fluids

PL2634 12 8” Tie-In Spool Howe PTS Manifold 8” Tie-In Spool 29.87 219.1 187.3 15.9 5LPPF 345 Produced Fluids

Shell U.K. E & P



Table 5.2

3” GAS LIFT PL2635 (Ref Drawing No BARD-25-SH-0002)


PIPELINE NUMBER

IDENT NUMBER

FROM

TO

DESCRIPTION OF MAIN


PIPELINE

LENGTH (m)

EXT. DIA. (mm)

INT. DIA

(mm) W.T. (mm)

TYPE OF INSULATION

(mm)


(barg)


PL2635 Howe PTS Manifold

57o 38’ 25.62” N 01o 22’ 12.05” E

Bardolino Well 57o 37’ 59.03” N 01o 24’ 00.05” E

3” Gas Lift 2137m 88.9 73.7 7.6 3LPP 324 Gas

PL2635 1 Howe PTS Manifold

3” Tie-In Spool

3” Tie-In Spool 28.74 88.9 73.7 7.6 3LPP 324 Gas

PL2635 2 3” Tie-In Spool 3” Tie-In Spool 3” Tie-In Spool 32.92 88.9 73.7 7.6 3LPP 324 Gas

PL2635 3 3” Tie-In Spool Bardolino Valve Protection Structure


5.40 88.9 73.7 7.6 3LPP 324 Gas

PL2635 4 Bardolino Valve Protection Structure 3” Tie-In Spool

3” Tie-In Spool

. 25.92 88.9 73.7 7.6 3LPP 324 Gas

PL2635 5 3” NB Rigid Gas Lift Pipeline

3” NB Rigid Gas Lift Pipeline 3” Tie-In Spool 32.85 88.9 73.7 7.6 3LPP 324 Gas

PL2635 6 3” Tie-In Spool Bardolino Subsea Manifold

Bardolino Subsea Manifold 1900 88.9 73.7 7.6 3LPP 324 Gas

PL2635 7 Bardolino Subsea Manifold 2” Tie-In Spool 2” Tie-In Spool 32.76 60.3 47.5 6.4 3LPP 324 Gas

PL2635 8 2” Drop Down Tie-In Spool Bardolino Well 2” Drop Down Tie-

In Spool 20.81 60.3 47.5 6.4 3LPP 324 Gas

PL2635 9 Bardolino Subsea Manifold 2” Tie-In Spool Bardolino Subsea

Manifold 16.59 88.9 73.7 7.6 3LPP 324 Gas

PL2635 10 2” Tie-In Spool 2” Tie-In Spool 2” Tie-In Spool 21.92 60.3 47.5 6.4 3LPP 324 Gas

PL2635 11 2” Tie-In Spool 2” Drop Down Tie-In Spool 2” Tie-In Spool 16.26 60.3 47.5 6.4 3LPP 324 Gas

PL2635 12 2” Drop Down Tie-In Spool Bardolino Well 2” Drop Down Tie-

In Spool 2.93 60.3 47.5 6.4 3LPP 324 Gas

Shell U.K. E & P



Table 5.3

ELECTRO/HYDRAULIC CHEMICAL INJECTION UMBILICAL PLU2636– HOWE PTS MANIFOLD TO BARDOLINO WELL

(Ref Drawing No BARD-25-SH-0003)


PIPELINE NUMBER

IDENT NUMBER FROM TO

DESCRIPTION OF MAIN


PIPELINE

LENGTH (m)

EXT. DIA. (mm)

INT. DIA (mm) W.T. (mm)

TYPE OF INSULATION

(mm)


(barg)


PLU2636

Howe PTS Manifold

57o 38’ 25.62” N 01o 22’ 12.05” E

Bardolino Well 57o 37’ 59.03” N 01o 24’ 00.05” E

Elec/Hyd/Chem Umbilical 2056m

PLU2636

1

Howe UTA / Howe PTS

Bardolino UTA / Howe PTS

Hydraulic Jumper (HP)

9

29.4 9.53 N/A N/A 690 Brayco SV3

PLU2636

2

Howe UTA / Howe PTS


Hydraulic Jumper (LP) 9 33.0 12.7 N/A N/A 690 Brayco SV3

PLU2636

3

Howe UTA / Howe PTS


Hydraulic Jumper (Ret) 9 40.4 19.05 N/A N/A 414 Brayco SV3

PLU2636

4

Howe UTA / Howe PTS


Chemical Jumper - MeOH 9 40.4 19.05 N/A N/A 414 MeOH

PLU2636

5

Howe UTA / Howe PTS


Chemical Jumper – Scale

Inhibitor 9 33.0 12.7 N/A N/A 690 Scale Inhibitor

PLU2636 6 Howe UTA / Howe PTS


Electrical Distribution Box N/A N/A N/A N/A N/A N/A N/A

PLU2636

7 Howe UTA /

Howe PTS EDB / Howe PTS Electrical Power Jumper 8 28.7 N/A N/A N/A N/A N/A

PLU2636

8

Howe UTA / Howe PTS EDB / Howe PTS Electrical Signal

Jumper 8 28.7 N/A N/A N/A N/A N/A

Shell U.K. E & P



PLU2636

9

EDB / Howe PTS Bardolino UTA /

Howe PTS Electrical Power


PLU2636

10

EDB / Howe PTS Bardolino UTA /

Howe PTS Electrical Signal


PLU2636 11 Elec/Hyd/Chem Jumper

Bardolino UTA (Howe End)

Bardolino UTA (Howe End) N/A N/A N/A N/A N/A N/A N/A

PLU2636 12 Howe/Bardolino UTA

Elec/Hyd/Chem Jumper

Elec/Hyd/Chem Umbilical

2000m 2000m 2000m 2000m 2000m 2000m 2000m 2000m 2000m

21.25 21.25 14.72 14.72 14.72 21.25 21.25 21.25 21.25

19.05 19.05 12.7 12.7 12.7 19.05 19.05 19.05 19.05

1.10 1.10 1.01 1.01 1.01 1.10 1.10 1.10 1.10

N/A N/A N/A N/A N/A N/A N/A N/A N/A

345 345 517 517 517 345 517 345 345

1X Hyd Ret 1X LP Hyd 1X HP Hyd 1X Scale Inhibitor 1 X Spare 1 X Spare 1 X Spare 1 X Methanol 1 X Methanol

PLU2636 13 Elec/Hyd/Chem Jumper

Bardolino UTA (Bardolino End)

Bardolino UTA (Bardolino End) N/A N/A N/A N/A N/A N/A N/A

PLU2636 14 Bardolino UTA Bardolino EDB Electrical Power Jumper 8 28.7 N/A N/A N/A N/A N/A

PLU2636 15 Bardolino UTA Bardolino EDB Electrical Signal Jumper 8 28.7 N/A N/A N/A N/A N/A

PLU2636 16 Bardolino UTA Bardolino Manifold Electrical

Distribution Box N/A N/A N/A N/A N/A N/A N/A

PLU2636 17 Bardolino EDB

Bardolino Tree supply jumper

Electrical Power/Signal

jumper 19 28.7 N/A N/A N/A N/A N/A

Shell U.K. E & P



PLU2636

18 Bardolino UTA

Bardolino Manifold Hydraulic

Distribution panel

Hydraulic Jumper (HP) 4 29.4 9.53 N/A N/A 690 Brayco SV3

PLU2636

19 Bardolino UTA


Distribution panel

Hydraulic Jumper (LP) 4 33.0 12.7 N/A N/A 690 Brayco SV3

PLU2636

20 Bardolino UTA


Distribution panel

Hydraulic Jumper (Ret) 4 40.4 19.05 N/A N/A 414 Brayco SV3

PLU2636

21 Bardolino UTA


Distribution panel

Chemical Jumper - MeOH 4 40.4 19.05 N/A N/A 414 Methanol

PLU2636

22 Bardolino UTA


Distribution panel

Chemical Jumper - MeOH 4 40.4 19.05 N/A N/A 414 Methanol

PLU2636

23 Bardolino UTA


Distribution panel

Chemical Jumper – Scale

Inhibitor 4 33.0 12.7 N/A N/A 690 Scale Inhibitor

PLU2636

24 Bardolino UTA Bardolino Well Elec/Hyd/Chem

Jumper

TBD

N/A

19.05 12.7 9.53 12.7 19.05

N/A N/A

350 517 690 444 397

1X Hydraulic Ret 1X LP Hyd Sup 1X HP Hyd Sup 1 X scale inhibitor 1 X Methanol

Shell U.K. E & P



Table 5.4

ELECTRO/HYDRAULIC CHEMICAL INJECTION UMBILICAL PLU2636JVPS

(Ref Drawing No BARD-25-SH-0003)


PIPELINE NUMBER

IDENT NUMBER FROM TO

DESCRIPTION OF MAIN


PIPELINE

LENGTH (m)

EXT. DIA. (mm)

INT. DIA (mm) W.T. (mm)

TYPE OF INSULATION

(mm)


(barg)


PLU2636JVPS EDP

57o 38’ 25.62” N 01o 22’ 12.05” E

Bardolino VPS Umiblical

57° 38' 24.70"N 01° 22' 15.04"E

187m

PLU2636JVPS

1 EDB / Howe PTS Howe Tree supply Jumper

Electrical power/signal

jumper 19 28.7 N/A N/A N/A N/A N/A

PLU2636JVPS

2 Howe Tree supply Jumper


Hydraulic Jumper 84 33.0 12.7 N/A N/A 569 Brayco SV3

PLU2636JVPS

3 Howe Tree supply Jumper


Hydraulic Jumper 84 33.0 12.7 N/A N/A 569 Brayco SV3

Shell U.K. E & P



6.0 DEPCON APPLICATION

Details for Dumping Consent – Form Depcon 1

Shell U.K. E & P



COL 1 COL 2 COL 3 COL 4 COL 5 COL 6 COL 7

Pipeline Number Proposed Date

Type and Size of Materials

Quantity

Location of Deposit Geographical Co-ordinates Drawing

Number From To

8” Tie in Spools from Howe PTS to Bardolino VPS

August 2009

Mattresses 6m x 3m x 0.15m Thick

12 No. Howe PTS 01° 22’ 12.05 ”E 57° 38’ 25.62 ”N

Bardolino VPS 01° 22' 15.04"E 57° 38' 24.70"N

J70863-A-U-DW-008

6” Tie in Spools from Bardolino VPS to Bardolino Pipeline End

August 2009


29 No. Bardolino VPS 01° 22' 15.04"E 57° 38' 24.70"N

Pipeline Trench Full Depth, Howe End 01° 22' 22.68"E 57° 38' 24.40"N

J70863-A-U-DW-008

6” Pipeline July 2009 Rock; Granite/ Gneiss Specific Density approx 2.65Te/m3

~13,000 Tonnes

Note 2


Pipeline Trench Full Depth, Bardolino End

01° 23' 52.98"E 57° 38' 02.75"N

J70863-A-U-DW-007

& 008

6” Tie in Spools from Bardolino Pipeline End to Bardolino Manifold

August 2009


28 No. Pipeline Trench Full Depth, Bardolino End

01° 23' 52.98"E 57° 38' 02.75"N

Bardolino Manifold 01° 23’ 58.82”E 57° 38’ 00.01” N

J70863-A-U-DW-007

6” Tie in Spools from Bardolino Manifold to Bardolino Well

January 2010


8 No. Bardolino Manifold 01° 23’ 58.82”E 57° 38’ 00.01”N

Bardolino Well 1° 24' 00.05"E

57° 37' 59.03"N

J70863-A-U-DW-007

EHC Umbilical from Howe PTS to Trench Transition Point


37 No. Howe PTS 01° 22’ 12.05 ”E 57° 38’ 25.62 ”N

Umbilical Trench Full Depth, Howe End 01° 22’ 19.63”E 57° 38’ 23.97”N

J70863-A-U-DW-008

EHC Umbilical July 2009 Rock; Granite/ Gneiss Specific Density approx 2.65Te/m3

~8,000 Tonnes

Note 1

Umbilical Trench Full Depth, Howe End 01° 22’ 19.63”E 57° 38’ 23.97”N

Umbilical Trench Full Depth, Bardolino End

01° 23’ 53.78”E 57° 38’ 00.52”N

J70863-A-U-DW-007

& 008

EHC Umbilical from Trench Transition Point to Bardolino Manifold


17 No. Umbilical Trench Full Depth, Bardolino End

01° 23’ 53.78”E 57° 38’ 00.52”N

Bardolino Manifold 01° 23’ 58.82”E 57° 38’ 00.01” N

J70863-A-U-DW-007

Mattresses potentially required for stabilisation of the pipeline prior to hydrotesting and prior to rockdumping

July 2009 Mattresses 6m x 3m x 0.15m Thick

24 No. Note 3


Pipeline Trench Full Depth, Bardolino End

01° 23' 52.98"E 57° 38' 02.75"N

J70863-A-U-DW-007

& 008

Rock potentially required to protect the nearby Langeled pipeline from dropped objects during drilling

July 2009 Rock; Granite/ Gneiss Specific Density approx 2.65Te/m3

~2,000 Tonnes

Note 4

Notes:

1. The umbilical will be installed into a separate trench from the pipelines.

2. The finalised rock quantity can only be determined on completion of the Out of Straightness survey, this may result in

a marginal increase or decrease in the volume of rock dumped.

3. The number and location of mattresses required is directly dependent upon the quality of the trench. We are using a

ploughed solution to create the highest quality trench possible and minimise the number of mattresses. These

mattresses were not included in the Environmental Statement (W/3999/2008) because this scope has become known

following the Upheaval Buckling Analysis.

4. This rock quantity was not included in the Environmental Statement (W/3999/2008) because this scope of work has

become known recently following a drilling HAZID.

Shell U.K. E & P



7.0 APPENDICES

Appendix 1 FIELD LAYOUT DRAWINGS

Appendix 2 FIELD PARTNERS LETTERS OF AGREEMENT

Appendix 3 PIPELINE ROUTE SURVEY (EXTRACT)

Appendix 4 ADMIRALTY CHART

Shell U.K. E & P



Appendix 1FIELD LAYOUT DRAWINGS

BARD-21-J70863-A-U-DW-002 Bardolino to Howe Subsea Layout BARD-21-J70863-A-U-DW-003 Bardolino Manifold Approaches – Subsea Layout BARD-21-J70863-A-U-DW-004 Bardolino Manifold Tie-In – Subsea Layout BARD-21-J70863-A-U-DW-005 Howe PTS Approaches – Subsea Layout BARD-21-J70863-A-U-DW-006 Howe PTS Tie-In – Subsea Layout BARD-30-J70863-A-P-DW-003 Bardolino Well to Howe PTS Schematic

Shell U.K. E & P



Appendix 2FIELD PARTNERS LETTERS OF AGREEMENT

Shell U.K. E & P



Appendix 3PIPELINE ROUTE SURVEY (EXTRACT)

Shell U.K. Ltd Gardline Report Ref 7473.2/7556

EPT IT ED, European Data Acquisition and Management Volume 1

2

2. ROUTE SUMMARY

Results are presented on the Alignment Sheet (Appendix 2). Bathymetry results are

presented on the Bathymetry panel of the sheet and seabed features and obstructions are

presented on the Seabed Features panel. Shallow soils, geotechnical information and

sub-seabed conditions are presented on the Interpreted Profile panel. A brief description

of the route corridor is given below.

2.1 Bathymetry

At the proposed Bardolino Well location (KP0.00), the water depth is 91.0m LAT (302ft

MSL).

The water depth at the Howe Manifold (KP2.00) is 88.9m LAT (295ft MSL).

Water depth along the proposed pipeline route varies from a maximum of 91.0m (302ft

MSL) at KP0.00 to a minimum of 87.7m LAT (291ft MSL) around KP1.70. The seabed,

along the interpreted profile, shoals gently from KP0.00 to KP1.70 then gradually deepens

to the end of the route. Gradients throughout are less than 1 .

The difference between LAT and MSL, in the area, is 0.9m.

2.2 Seabed Features

Seabed sediments throughout the majority of the route survey corridor comprise a veneer

of sand with outcrops of clay and scattered cobbles and small boulders. Elsewhere,

seabed sediments predominantly comprise sand.

The high resolution sonar (500kHz) from the two offset centrelines indicates numerous

small boulders occur along the proposed route. The density of boulders, as shown in this

central area on the seabed features panel, is expected to be representative of the entire

route corridor.

The following objects, interpreted as boulders, with a height of 0.5m or greater, occur

within 50m of the proposed route centreline:

Description KP Height Offset Easting Northing

Object -0.014 0.5m 19m SE 583725 6388910

Object 0.688 0.7m 19m NNE 583095 6389221

Object 0.908 0.5m 37m SSW 582868 6389256

Object 0.942 0.6m 30m NNE 582865 6389331

Object 1.822 0.5m 10m SSW 582044 6389646

Shell U.K. Ltd Gardline Report Ref 7473.2/7556

EPT IT ED, European Data Acquisition and Management Volume 1

3

2.3 Sub-Seabed Conditions

Throughout the proposed pipeline route corridor, the shallow soils predominantly comprise

soft to firm slightly sandy clay with occasional gravel (Coal Pit Formation), to a depth in

excess of 5m sub-seabed, overlying dense to very dense slightly silty fine sand and very

stiff to hard slightly sandy clay (Fisher Formation).

Between KP0.501-KP0.680 and KP1.665-KP1.980, two small channel-like features sub-

crop the seabed. The channel-infill sediments are expected to comprise soft clay

(Forth/Coal Pit Formation).

2.4 Installation Constraints

The Sleipner to Easington Gas Pipeline (P0810) occurs 85m east-south-east of KP0.00

and crosses the survey area from south-south-west to north-north-east.

The Howe P1 Well, as-found height 7.9m, occurs 8m north-north-west of KP1.966.

The Howe Manifold, as-found height 5.1m, occurs at KP2.00.

The damaged and displaced Howe P1 Well Cocoon, 2.6m high, occurs 50m south-

west of the Howe P1 Well and has an associated seabed drag scar. In December

2007 the cocoon was visible to the immediate south-west of the Howe P1 Well, but

it had been dragged to its present position, possibly by fishing activity, by March

2008. It is possible that the cocoon could be further moved by further fishing

activity or seabed currents.

For additional information on possible obstructions, refer to the Hazard Notification

Summary (Ref. 2).

Shell U.K. E & P



Appendix 4ADMIRALTY CHART

")

"NELSON A

NELSON SOUTH

LegendBardolino Pipelines

Shell Exploration & Production in EuropeShell U.K. Limited

BARDOLINO PIPELINESPWA APPLICATION

December 05 2008

Sandy.DonaldPrinted By:

Print Date:

Original Chart Size:

MXD :EP200812201685001

A3

WARNINGDO NOT USE FOR NAVIGATIONCONSULT ADMIRALTY CHART

MAP UNDER REGULAR REVISIONREFER TO AUTHOR FOR LATEST UPDATE

1. Data extracted from Admiralty Charts Crown Copyright, Reproduced by Shell UK with permission of the Controller of Her Majesty's Stationary Office, Licence Number HO 154/950722/01. The Hydrographic Office has not verified the extracted data and the relevant printed chart should be consulted for navigational details.

2. CAUTION Competitor data is reproduced as received. It's accuracy cannot be guaranteed.

3. CAUTION The completeness of pipeline protection information cannot be guaranteed. Lateral extent is a symbolic representation only.

K

1:100,000

ALL COORDINATES ARE INWGS 84

HOWE MANIFOLD57° 38' 25.660"N1° 22' 12.034"E

BARDOLINO WELL57° 37' 59.069"N1° 24' 00.033"E

LANGELED GAS PIPELINESLEIPNER TO EASINGTON

shell u.k. limited bardolino field development project...shell u.k. e & p bardolino field...

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