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GB/T 21412.15-2017: Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 15: Subsea structures and manifolds
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GB/T 21412.15-2017: Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 15: Subsea structures and manifolds

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Petroleum and natural gas industries - Design and operation of subsea production systems - Part 15. Subsea structures and manifolds ICS 75.180.10 E94 National Standards of People's Republic of China Oil and gas industry Underwater production system design and operation Part 15. Underwater structures and manifolds Petroleumand naturalgasindustries- Design and operating of subseaproductionsystems- Part 15.Subseastructuresandmanifolds (ISO 13628-15.2011, IDT) 2017-10-14 Published 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword V. 1 Scope 1 2 Normative references 2 3 Terms, definitions and abbreviations 4 3.1 Terms and definitions 4 3.2 Abbreviations 6 4 manifold and base functional considerations 8 4.1 Overview 8 4.2 System Requirements 9 4.3 System Interface 9 4.4 cluster well manifold requirements 10 4.5 base system requirements 11 5 design considerations 12 5.1 System Design 12 5.2 Load 14 5.3 Piping Design 15 5.4 Structure Design 16 5.5 Basic Design 18 5.6 Parts 20 6 Design Verification and Verification 21 6.1 Design Verification 21 6.2 Design Verification 23 6.3 Other comments 24 7 piping system materials and construction requirements 24 7.1 Overview 24 7.2 Piping and piping fittings 25 7.3 Forgings 25 7.4 Chemical Composition and Weldability 26 7.5 Base metal sampling 26 7.6 Base metal mechanical and corrosion testing 27 7.7 Parts NDT 29 7.8 Fastener Material 30 7.9 Elbow and forming operation 30 7.10 parts welding transition layer and surfacing 32 7.11 Piping System Welding and Nondestructive Testing 33 Construction and Manufacturing Considerations 39 8.1 External corrosion protection 39 8.2 color 39 8.3 Material Traceability 40 Installation, Operation and Maintenance Considerations 9.1 Installation Requirements 40 9.2 Operating Requirements 40 9.3 Maintenance Considerations 41 9.4 Installation Process Requirements 41 10 ROV/ROT 43 11 Hoisting considerations 44 11.1 Lugs 44 11.2 Other lifting equipment 44 Equipment identification 44 Transport and Storage 45 13.1 Overview 45 13.2 Storage and Protection Procedures 45 13.3 Fixed at sea 45 Discard the terms 45 14.1 General 45 14.2 Disposal 45 14.3 Design 46 14.4 Disposal 46 14.5 Structure 46 14.6 Pipe 46 14.7 Base plate 46 Appendix A (informative) Typical manifold data table 47 Figure 1 Typical underwater structure 2 Figure 2 Typical cluster well manifold 11 Figure 3 typical base system 12 Table 1 applies to the manifold parts of the industry standard 20 Table 2 carbon steel, alloy steel seamless and welded pipe, pipe reference standard 25 Table 3 seamless stainless steel pipe and pipe fittings, pipe fittings reference standard 25 Table 4 forging pressure material standard 26 Table 5 carbon steel and low alloy steel sulfur content limit 26 Table 6 Charpy V-notch impact test Minimum average impact energy 27 Table 7 Important Variables 31 Table 8 stainless steel, nickel-base alloy and surfacing pipe additional testing and assessment test 31 Table 9 Impact Test Requirements 33 Table 10 Hardness Limits for Hydrogen Embrittlement at Sacrificial Anode Protection 34 Table 11 standard sample calibration requirements 39

Foreword

GB/T 21412 "Design and operation of oil and gas industry underwater production system" is divided into 15 parts. --- Part 1. General requirements and recommended practices; --- Part 2. Non-bonded flexible pipe systems for the seabed and the sea; --- Part 3. Out of the pipeline (TFL) system; --- Part 4. Underwater wellhead equipment and Christmas tree equipment; --- Part 5. Underwater umbilical; --- Part 6. Underwater production control system; --- Part 7. Completion/workover riser systems; --- Part 8. Underwater vehicle (ROV) interface for subsea production systems; --- Part 9. Remote operation tool (ROT) maintenance system; --- Part 10. Cohesive flexible pipe specifications; --- Part 11. Flexible pipe systems for the seabed and the sea; --- Part 12. Dynamic production of legislation; --- Part 13. Underwater production system remote operation tools and interfaces; --- Part 14. Underwater high integrity pressure protection system; --- Part 15. Underwater structures and manifold. This section GB/T 21412 Part 15. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with ISO 13628-15.2011 "design and operation of oil and gas industry underwater production system Part 15. Underwater structures and manifolds. " The documents of our country that are consistent with the corresponding international documents that are normative references in this section are as follows. --- GB/T 12467.2-2009 Welding quality of metallic materials - Part 2. Complete quality requirements (ISO 3834-2.2005, IDT); --- GB/T 19867 (all parts) welding procedure [ISO 15609 (all parts), IDT]; Oil and Gas Industry Drilling and Production Wellhead Equipment and Christmas Trees (ISO 10423). 2009, MOD); --- GB/T 21412.1-2010 Design and operation of subsea production system for oil and gas industry - Part 1. General requirements And recommended practices (ISO 13628-1.2005, IDT); --- GB/T 21412.8-2010 Design and operation of subsea production systems for oil and gas industry - Part 8. Underwater production System of underwater vehicle (ROV) interface (ISO 13628-8.2002, IDT). This part of the National Oil and Gas Standardization Technical Committee (SAC/TC355) proposed and managed. This part of the drafting unit. CNOOC Research Institute. Drafters of this section. Guo Hong, Yan Jia Yu, Zheng Lijun, Xu Wenhu. Oil and gas industry Underwater production system design and operation Part 15. Underwater structures and manifolds

1 Scope

GB/T 21412 of this part of the recognized and widely accepted within the framework of industrial norms and standards, put forward the underwater structure and manifold push Recommended practice. Therefore, it does not replace or exclude any requirement of other industry regulations. This section applies to underwater oil and gas production and underwater injection pressure control of underwater manifolds and base plate. See examples of underwater production systems figure 1. This section covers the following equipment. a) Underwater production system structural components and piping systems. --- Production and injection manifold; --- Modular and integrated single satellite wells and multi-well base plate; --- Underwater treatment and underwater booster station; --- Oil (gas) riser base and the outer riser base (FRB, ERB); --- Pipeline terminal manifold (PLEM); --- Pipeline terminal (PLET); --- T-type and Y-type connection; --- Underwater isolation valve structure (SSIV). b) underwater production system components. --- Underwater control and distribution structure; --- Other underwater structures. c) Protective structures associated with the above equipment. The following parts and their applications are beyond the scope of this section. --- Pipe and manifold valves; --- pipes and connectors; --- Grease mouth; --- Production control system. General information related to the above may be obtained from other specifications such as 13628-1 and APISpec2C. ...