Flexible Jumper Design Premise

© 2007 Wellstream international limited. This document contains information which is confidential and property to Wellstream International Limited.

D235 Santos Oyong Phase II Project Design Premise

Report No: D235-E001

Revision: 02

Date: 12th April 2008

Submitted by: Luke Wilkinson

Wellstream International Limited

D235 / SANTOS OYONG PHASE II DEVELOPMENT D235-E001 REV 02 PAGE I


Table of Contents

1. GENERAL INFORMATION................................................................................. 1

2. DESIGN PARAMETERS..................................................................................... 2 2.1 GENERAL DESIGN PARAMETERS................................................................................. 2 2.2 INTERNAL FLUID PARAMETERS ................................................................................... 2 2.3 TEMPERATURE REQUIREMENTS.................................................................................. 2 2.4 PRESSURE REQUIREMENTS ......................................................................................... 3 2.5 SERVICE DEFINITION...................................................................................................... 3 2.6 INSULATION REQUIREMENTS ....................................................................................... 3 2.7 NYLON SERVICE LIFE..................................................................................................... 3 2.8 GAS VENTING.................................................................................................................. 3 2.9 CORROSION PROTECTION REQUIREMENTS............................................................... 3 2.10 OTHER.............................................................................................................................. 3 2.11 CONNECTOR ................................................................................................................... 4 2.12 JUMPER PARAMETERS.................................................................................................. 4

2.12.1 On-Bottom Stability .............................................................................................. 4 2.12.2 Protection Requirements ..................................................................................... 4 2.12.3 Upheaval Buckling................................................................................................ 4

3. EXTERNAL ENVIRONMENT.............................................................................. 5 3.1 SEAWATER DATA ........................................................................................................... 5 3.2 SOIL DATA ....................................................................................................................... 5 3.3 OTHER.............................................................................................................................. 5

4. ADDITIONAL REQUIREMENTS ........................................................................ 6

5. DELIVERY, INSTALLATION AND MAINTENANCE ......................................... 7 5.1 INSTALLATION REQUIREMENTS................................................................................... 7 5.2 INSTALLATION DESIGN CRITERIA................................................................................ 7

Appendix A Wave and Current Data

D235 / SANTOS / OYONG DEVELOPMENT D235-E001 REV 02 PAGE 1


Flexible Pipe Design Premise

1. GENERAL INFORMATION Client Bakrie Pipe Industries, Indonesia Project Name Santos - Oyong Phase II Development WIL Project Reference D235 Client Contact: Adi Bagus Tirto Client Contact Phone : TBA Client Contact Fax : TBA Client Contact Email [email protected] Client Contact Address Bakrie Pipe Industries, JJ Raya Pejuang, Medan Satria, Kota Bekasi 17131, Indonesia.



2. DESIGN PARAMETERS

2.1 GENERAL DESIGN PARAMETERS

Service description (static / dynamic) Dynamic Pipe bore definition (smooth / rough) Rough Internal diameter 10.0 inch 254.0 mm Estimated length required 85 m Tolerance required on length 1.0 %+ 0.0 %- Required minimum bend radius NA m Required OD / weight ratio (empty in air) NA mm/kg.m Service life 15 years Maximum permissible axial load NA kN Design water depth 41 m

2.2 INTERNAL FLUID PARAMETERS

Fluid description oil / gas / water[4] maximum 996[4] kg/m3

minimum 650[4] kg/m3 Density operating As above[4] kg/m3 maximum 160[4] BPD

Liquids operating 15[4] BPD maximum 60[4] MMscfd

Flow rates Gases

operating 60[4] MMscfd NaCl content n/s[1] mg/l Chlorides content n/s[5] ppm Gas-oil ratio n/s[1] m3 / m3

Methanol n/s[1] l/min Water cut n/s[1] % Alcohols (yes / no) n/s[1]

Corrosive agents (yes / no) n/s[1]

Inhibitors (scale, paraffin etc) (yes / no) n/s[1]

Injected chemicals (yes / no) n/s[1]

Solids, precipitates etc n/s[1]

2.3 TEMPERATURE REQUIREMENTS

Design minimum temperature -20 oC Design maximum temperature 65[3] oC Operating temperature 37 - 60 oC



2.4 PRESSURE REQUIREMENTS

Design pressure 15.5 MPa Operating pressure 13.8 MPa

2.5 SERVICE DEFINITION

Description (sweet / sour) Sweet

NACE MR01-75 to apply (yes / no) No

H2S content 0.00 ppmv CO2 content 1.07 mol% CH4 content 92.72 mol% Titrated acid number n/s[1] mgKOH/g

2.6 INSULATION REQUIREMENTS

Thermal insulation required (yes / no) No

Required insulation value (based on ID) NA W/m2K

2.7 NYLON SERVICE LIFE

Temperature profile attached (yes / no) No[1]

End of life CIV 1.2 dl/g supplied n/s[1]

pH calculated 5.0

HCO3 n/s[1] ppm Total iron content n/s[1] ppm

2.8 GAS VENTING

Gas venting required (yes / no) Yes

System components (valves, burst disks) Vent valves only

2.9 CORROSION PROTECTION REQUIREMENTS

Corrosion protection required (yes / no) Yes Cathodic protection system required (yes / no) No[2] Electrical continuity required (yes / no) Yes

External coating description (end fitting) Ceramkote (blue) Internal coating description (flange faces and end fitting bore) Inconel 625

2.10 OTHER

Fire resistance required (yes / no) No

Pigging, TFL, work over etc (yes / no) No

Piggyback required (yes / no) No



2.11 CONNECTOR

Barge topside connector type 10-inch ANSI Class 900 RTJ Platform topside connector type 10-inch ANSI Class 900 RTJ Midline connector type NA

2.12 JUMPER PARAMETERS

Flowline routing description attached (yes / no) No

Cross over requirements (yes / no) No

Required ancillaries 2 x Bend stiffeners / 2 x Topside hang offs.

2.12.1 ON-BOTTOM STABILITY

On-bottom stability to be checked (yes / no) No current NA yr

Installation sea state wave NA yr current NA yr

Operational sea state wave NA yr

2.12.2 PROTECTION REQUIREMENTS

Impact resistance to accidental loads (yes / no) No

Trenching (yes / no) No

Rock dumping (yes / no) No

Mattresses (yes / no) No

2.12.3 UPHEAVAL BUCKLING

Upheaval buckling to be checked (yes / no) No

Required minimum soil coverage NA m Allowable bend radius NA m Load cases attached (yes / no) No

Notes

[1] This information has not been supplied specifically for the Santos Oyong Phase II project.

[2] End connections are to be considered as part of the Platform impressed current system.

[3] For intermittent operation only.

[4] In Design Premise Rev 2 Internal Fluid Parameters have been modified to oil, gas and water service,

details as shown.

[5] Chloride content has not been supplied, this is critical to pipe service life.

Max allowable Chloride = 65 000 ppm. During service life there is a limit of 30 days maximum total internal exposure to untreated seawater.



3. EXTERNAL ENVIRONMENT

3.1 SEAWATER DATA

Density 1025 kg/m3

Temperature profile attached (yes / no) No

Minimum surface temperature 27.0 oC Maximum surface temperature 29.7 oC Minimum seabed temperature 26.2 oC Maximum seabed temperature 29.5 oC

3.2 SOIL DATA

Soil description NA

Soil shear strength NA MPa Angle of internal friction NA o

Lateral friction coefficient NA

Longitudinal friction coefficient NA

3.3 OTHER

Marine growth to be considered (yes / no) Yes

Marine growth profile attached (yes / no) No

Ice effects to be considered (yes / no) No

Sunlight exposure (yes / no) Yes

Current data attached (yes / no) Yes (See Appendix A)

Wave data attached (yes / no) Yes (See Appendix A)



4. ADDITIONAL REQUIREMENTS Materials required in addition to API specification 17J (yes / no) No

If yes, specify details:

Manufacturing required in addition to API specification 17J (yes / no) No


FAT required in addition to API specification 17J (yes / no) No


Marking required in addition to API specification 17J (yes / no) No


Prototype tests required (yes / no) No


Additional national authority / government regulations (yes / no) No


Purchaser inspection requirements (yes / no) No


General requirements in addition to API specification 17J (yes / no) No




5. DELIVERY, INSTALLATION AND MAINTENANCE Delivery requirements: Ex. Works FAS delivery 30th September 2008.

Shipping, packing and storage requirements: Detailed packing arrangement and marking drawings to be submitted for Company approval.

Documentation requirements: Documentation will be issued in accordance with Wellstream Master Document List D235-MDL.

5.1 INSTALLATION REQUIREMENTS

Method n/s[1]

Vessel n/s[1]

General: n/s[1]

5.2 INSTALLATION DESIGN CRITERIA

Equipment bend radius NA m Tensioner crush loads NA kN/m-track Installation / lifting device requirements: To be determined during the Project as part of the Seastream joint venture. Transport reel used for installation (yes / no) No

Pipe internal fluid at delivery NA

Pipe internal fluid during installation NA

Seawater flooding requirements (yes / no) No

Notes

[1] This information has not been supplied specifically for the Santos Oyong Phase II project.



APPENDIX A

Wave and Current Data



The following summary of data has been extracted from Santos Specification 9811-55-SP-001 Rev 0.

Wave Data

Oyong-Grati 2 – Years 100 – Years Description

Oyong Oyong Significant wave height, Hs (m) 1.85 2.37

Zero crossing period, Tz (sec) 4.28 4.73

Spectral peak period, Tp (sec) 5.51 6.11

Maximum wave height, Hmax (m) 3.44 4.41

Period of maximum wave, Tmax (sec) 5.30 5.88

JONSWAP Parameters : - Phillips parameter 0.0142 0.0150 - peakedness

t2.29 2.46

- sigma A 0.078 0.076 - sigma B 0.093 0.092

Current Data

Oyong-Grati 2 – Years 100 – Years Depth

(m) Oyong Oyong 1mAbove Seabed (m/sec)

0.27 0.32

Additional Reference Data and Specifications

100 year RAO’s

9800-GEN-003

9810-40-RPT-001 Rev.0 – Structural Analysis Report

D3574-2-DR-01 FPSO Barge Mooring Analysis Rev C

D3574-2-EC-01 FPSO Barge Motion Rev A

D3574-S1-06 150668-Mooring Hose-Chain DWG 2

DWG-02-P-005-Rev 1 AS BUILT

Existing Oyong Flexible Jumper

ISO-02-P-001 Rev.1 – AS BUILT

Oyong Facilities – Photos

Production Barge COG

Flexible Jumper Design Premise

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