Insulation Coatings

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  • SPECIFICATION FOR INSULATION COATINGS

    03-2359-05-P-1-001 Page 2 of 22 Rev 0

    TABLE OF CONTENTS

    1.0 INTRODUCTION 41.1 PROJECT 41.2 OVERVIEW 51.3 SCOPE OF DOCUMENT 61.4 ABBREVIATIONS 61.5 DEFINITIONS 7

    2.0 APPLICABLE CODES AND STANDARDS 82.1 GENERAL 82.2 COMPLIANCE 82.3 CONFLICT OF INFORMATION 82.4 PROJECT DOCUMENTS / DRAWING 82.5 CODES AND STANDARDS 8

    3.0 GENERAL REQUIREMENTS 93.1 QUALITY ASSURANCE AND QUALITY CONTROL 93.2 VERIFICATION 9

    4.0 COATING MATERIALS 104.1 GENERAL 104.2 RAW MATERIALS 10

    5.0 COATING APPLICATION 125.1 APPLICATION OF THE POLYURETHANE FOAM 125.2 APPLICATION OF THE WATER SEAL ADHESIVES 125.3 APPLICATION OF THE HIGH DENSITY POLYETHYLENE LAYER 12

    6.0 INSPECTION AND TESTING 136.1 GENERAL 136.2 PRE-QUALIFICATION TRIALS 136.3 PRE-QUALIFICATION TESTING PROCEDURES 146.4 COATING PROCEDURE QUALIFICATION TESTING 146.5 PRODUCTION TESTING 156.6 VISUAL INSPECTION 156.7 THICKNESS TESTING 156.8 THERMAL CONDUCTIVITY TEST 166.9 CORE DENSITY OF POLYURETHANE FOAM 166.10 COMPRESSIVE STRENGTH OF POLYURETHANE FOAM 166.11 WATER ABSORPTION OF POLYURETHANE FOAM 166.12 GEOMETRICAL CHECKS 166.13 POLYETHYLENE TENSILE TESTING 176.14 POLYETHYLENE ELONGATION TESTING 176.15 INSULATION AND END SEAL ADHESION TESTING 176.16 FAILURE MODE BETWEEN POLYETHYLENE AND POLYURETHANE FOAM 176.17 TEST FAILURE 17

    7.0 REPAIR 19

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    8.0 MARKING OF COATED PIPE 20

    9.0 HANDLING, STORAGE AND TRANSPORTATION OF LINE PIPE 219.1 GENERAL 219.2 PROTECTION 219.3 TRANSPORT 21

    10.0 DOCUMENTATION 2210.1 DOCUMENTATION REQUIRED WITH TENDER 2210.2 DOCUMENTATION REQUIRED PRIOR TO COMMENCEMENT OF WORK 2210.3 DOCUMENTATION REQUIRED ON COMPLETION OF WORK 22

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    1.0 INTRODUCTION 1.1 PROJECT

    The Te Giac Trang (TGT or White Rhinoceros) Field is located in the northern part of Block 16-1, in the Cuu Long Basin (see Figure 1-1) some 100km southeast of Vung Tau, 20km northwest of the Bach Ho Field and 35km west of the Rang Dong Field.

    Figure 1-1 TGT Field Location Map

    To date, oil in the TGT field has been proven in 5 separate but geologically related accumulations of thinly bedded reservoirs.

    It is proposed to develop the TGT field with at least two wellhead platforms (WHPs) H1 and H4. As the TGT reservoirs are naturally pressured and the high degree of vertical separation makes the wells prone to water break through, subsea production wells have been ruled-out because of the requirement for regular well interventions (produced water shut-offs, gas lift optimization, reservoir monitoring surveys, etc).

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    1.2 OVERVIEW

    The recommended development concept is shown in Figure 1-2.

    VT CCP at the White Tiger Field

    PLEM

    1.8 km

    H1- WHP

    H4- WHP

    6.874 km

    SSIV

    Multiphase pipelineWater Injection pipelineGas lift supply pipeline

    Multiphase pipelineWater Injection pipelineGas lift supply pipeline

    HST-WHP

    H5- WHP or TGD

    8 tie-in spool

    12 PV GAS EXPORT PIPELINE

    Gas export pipeline

    TGT FPSO

    Figure 1-2 TGT Recommended Development Concept Leased FPSO / H1 prior to H4

    The main features of the concept are summarised below: A 16 slot WHP located in water depth of 43.0m (LAT) over H1.1, H1.2, & H2 areas; A 12 or 16 slot WHP located in water depth of 44.7m (LAT) and middle of the H4 and

    H3N area; The WHPs are normally unattended installations with independent power and control

    systems; Each WHP will have a Production and a Test Manifold each connected to a multi-

    phase flow meter to facilitate well testing and field production allocation; Each WHP will be designed with a Helideck offset from the Well slots to allow

    Helicopter operation coincident with well intervention work. The development will be phased with the H1-WHP installed and commissioned at

    least 12 months before the H4-WHP; There will be no processing on the WHPs, i.e. full wellstreams transferred to the CPF; A Central Production Facility (CPF), based on an FPSO, will be situated 2km

    southeast of H1-WHP, in a water depth of 43.4m (LAT); Oil export by shuttle tanker; Dry gas export via pipeline tie-in to PV Gas Pipeline.

    Future development of prospects and discoveries to the North (e.g. HST) will be tied back to pre-installed risers / tie-in facilities at the H1 and H4 WHPs. Possible developments are HST to the North and Voi Trang, TGD and H5 to the South and West.

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    1.3 SCOPE OF DOCUMENT

    This specification defines the minimum technical requirements for the application of PUF insulation coatings for the 16-inch Production Pipeline from H4 to H1 for TGT Field Development. The technical requirements for application of FBE anti-corrosion coating on bare steel linepipes are addressed in Specification for Linepipe Coating System Doc No 03-2359-03-P-1-005. The CONTRACTOR shall then apply sprayed polyurethane foam and extruded high-density polyethylene outer layer with all necessary adhesives to ensure good bonding over the FBE anti-corrosion coated linepipe. The 16-inch thermally insulated pipes will be subsequently concrete weight coated for on-bottom stability.

    1.4 ABBREVIATIONS

    The abbreviations used in the report are listed in Table 1-1 below. API American Petroleum Institute BS British Standard COA Certificate of Analysis CPF Central Processing Facility CPS Coating Procedure and Specification CWC Concrete Weight Coating FBE Fusion Bonded Epoxy FPSO Floating Production, Storage and Offloading HDPE High Density Polyethylene HLJOC Hoang Long Joint Operating Company ISO International Standards Organisation LAT Lowest Astronomical Tide OHTC Overall Heat Transfer Coefficient PE Polyethylene PU Polyurethane PUF Polyurethane Foam QA Quality Assurance TGT Te Giac Trang WHP Wellhead Platform

    Table 1-1 Abbreviations

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    1.5 DEFINITIONS

    The following terms as used in this specification assume the meanings given below: COMPANY Hoang Long Joint Operating Company (HLJOC)

    CONTRACTOR The company or consortium which is awarded any or all of the engineering, procurement, construction for the TGT Field Development Project.

    PURCHASER The party which places the order or signs the contract. This may be the COMPANY or the CONTRACTOR at all times, or the COMPANY followed by the CONTRACTOR if the PURCHASE ORDER is novated.

    VENDOR The company on which the PURCHASE ORDER or contract for supply of the goods or services is placed.

    PURCHASE ORDER

    The order issued by the PURCHASER consisting of the PURCHASE ORDER, including Terms and Conditions and attachments thereto including, but not limited to Data Sheets, Drawings and Specifications including referenced documentation therein, and all other documents and attachments.

    Table 1-2 Definitions

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    2.0 APPLICABLE CODES AND STANDARDS 2.1 GENERAL

    The VENDOR shall comply in full with the latest issues of all the relevant codes, statutory regulations, and COMPANY Specifications referenced herein.

    2.2 COMPLIANCE The VENDOR is responsible for the quality of materials and workmanship, together with compliance with the certification authority requirements, legislative requirements, guidance notes, issued by any relevant authority and COMPANY Specifications referenced herein. 2.3 CONFLICT OF INFORMATION In the event of any conflict between this Specification or any other COMPANY

    Specifications and associated data sheets, or with any applicable Codes and Regulations, the VENDOR shall immediately inform the COMPANY in writing and receive written clarification from the COMPANY before proceeding with the work.

    2.4 PROJECT DOCUMENTS / DRAWING The following Project Documents/ Drawing are referenced:

    03-2359-05-P-3-001 Pipeline Design Basis 03-2359-03-P-1-005 Specification for Linepipe Coating System 03-2359-03-P-1-006 Specification for Field Joint Coatings 03-2359-03-P-1-008 Specification for Weight Coatings 03-2359-05-P-0-008 Pipeline Corrosion & Weight Coating Drawing

    2.5 CODES AND STANDARDS Unless otherwise advised by the COMPANY, the latest issues of the following codes, standards and regulations shall form part of this specification.

    API RP 5L1 Recommended Practice for Railroad Transportation of Line Pipe

    API RP 5LW Recommended Practice for Transportation of Line Pipe on Barges and Marine Vessels

    BS EN 253

    District Heating Pipes Pre-insulated Bonded Pipe Systems for Directly Buried Hot Water Networks Pipe Assembly of Steel Service Pipes, Polyurethane Thermal Insulation and Outer Casing of Polyethylene

    BS EN ISO 9001 Quality Management Systems Requirements

    ISO 844 Rigid Cellular Plastics Determination of Compression Properties

    ISO 845 Cellular Plastics and Rubbers Determination of Apparent Density

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    3.0 GENERAL REQUIREMENTS 3.1 QUALITY ASSURANCE AND QUALITY CONTROL

    All certification, test results, reports and any other documentation submitted to COMPANY shall be in english language. The CONTRACTOR shall establish and maintain a fully documented quality control system, in accordance with BS EN ISO 9001, to ensure: