SY/T 0305-1996 Technical specification for beach and sea pipeline systems
Some standard content:
Petroleum and natural gas industry standard of the People's Republic of China Technical specification of pipeline system for beach-shallow sea
Teclinical specification of pipelinesystein for beach-shallow seaSY/ T 0305-—96
Editor Department: Shengli Petroleum Administration Bureau Survey and Design Institute Shengli Petroleum Administration Bureau Oil Construction No. 1 Company
Approving Department: China National Petroleum Corporation Petroleum Industry Press
1996 Beijing
Line Planning
General Provisions
Line Selection
Line Survey
Environment and Loads
General Provisions
Natural Environmental Conditions
Internal Conditions of Pipe
General Provisions
Pipe Tracking System in Position
Pipeline System in Installation
Pipeline Accessories
Insulated Pipeline
Materials for Pipeline and Pipeline Accessories
General Provisions
Steel Pipe for Pipeline and Riser
Supporting Parts
Pipeline Anticorrosion and Reinforcement Layer||tt| |Pipeline skin protection
(23）
(29）
7.2 Weighting layer
8 Onshore prefabrication and installation of pipe sections
General provisions
Quality requirements for pipes entering the site
Prefabrication and assembly
Pipeline beach and sea installation
General provisions
Pipeline line control
Trenching and burying pipes
Final inspection and completion test||tt| |Final inspection
Completion acceptance
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix』
Appendix K
Wind load
Fluid dynamic coefficient CpCM, C, value
Pile group interference coefficient K. and curtain coefficient K, value of vortex separation phenomenon caused by ocean current
Wave impact
Buckling calculation
Test piece sampling method
Welding personnel identification
Pressure test report
Terms used in this specification
Additional explanation
Technical specification for beach and sea pipeline system
Article explanation
(46)
Document of China National Petroleum Corporation
(96) CNPC Technical Supervision No. 642
Notice on the approval and release of fourteen oil and gas industry standards including "Design Specification for Gas Field Gathering Project" To all relevant units:
Fourteen oil and gas industry standards including "Design Specification for Gas Field Gathering Project" (draft) have been reviewed and approved and are now approved as oil and gas industry standards and are hereby released. The numbers and names of the various standards are as follows: No.
SY/T 0010—96
SY/T 0011-96
SY 0043—96
SYT 009196
SYT 0306-96
SYT 030796
SY/T 0308-96
Design Specification for Gas Field Gathering Engineering (Replace
SYI10-86)
Design Specification for Natural Gas Purification Engineering in Gas Field (Replace
SYI10-86) 11—85)
Coloring standard for surface pipelines and equipment in oil and gas fields (replacing SYJ43—89)
: Design specification for computer control system of oil and gas fields and pipelines
Technical specification for thermal heating of offshore oil projects Technical specification for vertical cylindrical steel welded fixed storage tanks in Weihai oil projects
Technical specification for water injection in offshore oil projects
SY/T 0309-96
SY 7 T 031096
SY /T 0311-96bZxz.net
SY/T 0312---96
SY/T 0313-96
SY /T 031496
SY / T 030596
Technical Specification for Produced Water Treatment of Beach Oil Project
Technical Specification for Instrumentation and Actuation Control of Beach Oil Project
Technical Specification for Communication of Beach Oil Project
Technical Specification for Equipment of Beach Oil Project
Technical Specification for Design and Construction of Beach Oil Project Wharf
Technical Specification for Design and Construction of Beach Concrete Platform Structure
Technical Specification for Beach Pipeline System
The above standards shall come into force on July 1, 1997 China National Petroleum Corporation
December 3, 1996
1 General Principles
1.0.1 This specification is formulated to standardize the design and construction of beach pipeline system, make it safe, reliable, technologically advanced, economical and practical, and protect the environment. 1.0.2 This specification is applicable to the design and construction of steel pipeline system used to transport oil, natural gas or water in beach area, but not to the design and construction of pipeline project for transporting liquefied petroleum gas and liquefied natural gas.
1.0.3 Reference standards:
GB8163-87 Seamless steel pipe for conveying fluids GB/T8923-88 Surface rust grade and rust removal grade of steel before painting GB9711--88 Spiral seam submerged arc welded steel pipe for oil and natural gas pipeline JB75585 Technical conditions for pressure vessel forgings
SYJ4050-91 Seismic design specification for buried steel pipelines for oil (gas) transportation SY 405292 Welding process weighing method for oil and gas pipes
SY 4056--93 Quantity classification
SY 406593 Quality classification
Radiography and quality control of butt welds of oil and natural gas steel pipelines
Ultrasonic flaw detection and quality control of butt welds of oil and natural gas steel pipelines SY/ 4084-95
SY/T 409195
SY/T 4092-95
SY/T 4100-95
Technical Specifications for Environmental Conditions and Loads in Xionghai
Technical Specifications for Anticorrosion of Beach Oil Engineering
Technical Specifications for Thermal Insulation of Beach Oil Engineering
Technical Specifications for Engineering Quantity in Tanhai
SY／T410195Technical Specifications for Geotechnical Engineering Investigation in WeihaiSY5297-91 Straight Seam Electric Resistance Welded Steel Pipe for Oil and Gas Pipeline1.0.4 The tidal zone of the beach pipeline system shall be designed and constructed in accordance with the relevant national standards (specifications) for onshore pipeline systems in force. 1.0.5 In addition to implementing this specification, the design and construction of the beach pipeline system shall also comply with the provisions of the relevant national standards (specifications) in force.
2 Terms
2.0.1 Pipeline system for beach-shallow sea refers to the general term for all components of steel pipeline engineering facilities located in the beach for transporting oil, natural gas or water, including beach pipelines and their risers, supporting structures, pipeline accessories, anti-corrosion systems, leakage monitoring systems, alarm systems, emergency shutdown systems, etc. 2.0.2 Pipeline for beach-shallow sea refers to pipelines within the beach, including pipelines connecting platforms with platforms or other beach facilities within the beach, pipelines connecting supratidal zones, intertidal zones and extremely shallow seas with the shore (except risers), which may be suspended in whole or in part on the seabed, placed on the seabed or buried below the seabed.
2.0.3 Riser
refers to the pipeline connecting the beach pipeline with the production equipment of the platform or other beach facilities, and the expansion elbow at the bottom is also part of the riser. 3 Line Planning
3.1 General Provisions
11 The location of the relevant lines in the line planning of the Xionghai Pipeline System (hereinafter referred to as the Shangchen Pipeline System) shall be selected based on the natural environmental conditions of the system and the regional planning of the location.
3.1.2 The natural environmental conditions of the pipeline system mainly refer to wind, waves, ocean currents, tides, ice conditions, earthquakes and sea, environmental temperature (seabed, seawater, atmospheric temperature, marine organisms, beach water quality and bottom quality, beach sea bottom topography and geology and soil characteristics (including corrosion, conductivity), seabed sedimentation and its activities, etc. 3.1.3 The regional planning of the location of the pipeline system mainly refers to the comprehensive utilization planning of the location and its offshore cities, engineering facilities planning and the overall development of beach sea oil (gas) fields and the planning of various internal facilities and devices for oil (gas). 3.2 Line Selection
3.21 The location of the offshore pipeline (hereinafter referred to as pipeline) should be selected in an area with flat and stable terrain, and should be straight. Appropriate marks should be set for the selected route location, and the route survey should be carried out in accordance with Section 3.3 of this specification. 3.22 The route selection should avoid anchoring areas, existing underwater objects (such as boats, pile foundations, rocks, etc.), active faults, sliding areas of weak soil layers, and serious erosion and siltation areas of sedimentary layers. When it is unavoidable, protective measures should be taken, and a suitable location should be selected to shorten the passing distance. The impact of ship transportation, fishery activities, marine breeding, military restricted areas, environmental protection activities, pipeline landing point conditions, existing pipelines, cables or other facilities on the pipeline system should be considered.
3.2.3 The distance between the newly designed pipeline and the existing pipeline and other marine structures or offshore facilities and devices shall meet the following regulations
3.2.3.1 The distance between the main pipeline in the open sea and the seabed obstacles and dangerous objects shall not be less than 250m + the horizontal distance from the original pipeline or cable shall be less than 30m3.2.3.2 The horizontal distance between the pipeline inside the beach oil (gas) field and the original pipeline and other marine structures or beach oil facilities shall ensure that the pipeline does not endanger the safety of the original marine structures or beach oil facilities during laying and installation, nor hinder the normal drilling and operation at the predetermined location, and has sufficient safety distance3.2.4 The newly designed pipeline should not cross the original pipeline or cable. If it is unavoidable, ensure that the vertical static distance between the intersection is greater than 0.3 pull3.3 Line survey
3.3.1 After the pipeline line is selected, a detailed line survey should be carried out. The line survey should generally include the hydrology and meteorology, topography and shallow geological surface, seabed soil pond characteristics, seabed obstacles and potential dangerous objects along the line. 32 The hydrology and meteorology along the line include: wind and wind speed, waves, currents, tides, ice conditions, environmental corrosiveness and environmental temperature changes along long-distance pipelines.
3.3.3 The topographic survey along the line shall comply with the following provisions: 3.3.3.1 The topographic survey methods and requirements along the line shall comply with the relevant provisions of the "Technical Specifications for Beach Engineering Survey".
3.3.3.2 The width and accuracy of the line survey corridor on both sides of the axis shall meet the needs of normal pipeline construction and safety in the in-situ state, and the room for possible adjustment of the pipeline axis shall be considered. Generally, the width on both sides of the axis should be 250ml, and the accuracy should be 1:5000-1:2000. For areas that require detailed surveys, such as platforms or other beach facilities, areas with obstacle distribution, and areas with significant changes in seabed terrain, 1:500~1:200 water depth terrain should be used.
3.3.3.3 The identification of seabed obstacles along the route can be combined with the topographic survey along the route. Special attention should be paid to special seabed terrain and its changes, such as rock outcrops, large boulders, unstable slopes, tidal gullies and river estuaries, scouring and siltation, as well as investigations of sunken ships, seabed devices, submarine cables, and potential dangerous objects. 3.3.3.4 The depth of the pipeline line bottom quality measurement should exceed the maximum depth that the pipeline may reach during installation, excavation, burial and operation. 3.3.4 The soil fill characteristics of the seabed along the route can be obtained through methods such as seismic surveys, core drilling on-site in-situ tests, and borehole sampling indoor tests. It can also be obtained from geological surveys and seabed terrain surveys. The necessary supplementary materials and data shall be obtained by methods such as diving modeling, biological investigation and chemical analysis. The field and in-situ test technology of soil pond data shall comply with the relevant provisions of the Technical Specifications for Rock and Soil Engineering Investigation in Beaches and Seas. 335 When it is required to evaluate the difficulty of excavation and (or) management operations, the possibility of soil pond sliding or erosion, the possibility of scouring or silting, etc., a special investigation of seabed sediments should be carried out.
4 Environment and loads
4.1 General provisions
4.1.1 During the design and construction of the pipeline system, the influence of various natural environmental conditions and internal conditions of the pipe on the pipeline system shall be considered. The loads on the pipeline can be divided into: environmental loads, working loads (including installation status and in-situ status and accidental loads, etc.) 4.2 Natural environmental conditions
4.2.1 The selection of natural environmental conditions such as wind, waves, currents, tides, ice conditions, temperature, earthquakes, etc. shall comply with the relevant provisions of the "Technical Specifications for Beach Environment Conditions and Loads".
4.2.2 The influence of seasonal changes in seawater and the internal conditions of the pipeline along the pipeline shall be considered. The characteristics of the seabed soil on the pipeline, including the influence of temperature (air temperature, water temperature, seabed soil temperature, salinity, pentaerythrocytes, pH value, resistivity, ocean currents and marine biological activities on the corrosion control and protection system of the pipeline system
4.2.3 The influence of all marine organisms within the sea area where the pipeline system is located on the system should be considered, and the load changes and their influence caused by marine organisms attached to the pipeline and riser should be considered
4.3 Internal conditions of pipes
4.3.1 Installation conditions
A description of the internal state of the pipe during storage, installation and pressure testing until commissioning should be prepared. Determine whether temporary anti-corrosion measures are needed based on the duration of exposure of the pipe and its accessories to seawater and humid air. 4.3.2 Operating conditions
4.3.2.1 The physical properties and chemical composition of the conveying medium, as well as the pipe1 During the design and construction of the pipeline system, the influence of various natural environmental conditions and internal conditions of the pipe on the pipeline system shall be considered. The loads on the pipeline can be divided into: environmental load, working load (including installation state and in-situ state and accidental load, etc. 4.2 Natural environmental conditions
4.2.1 The selection of natural environmental conditions such as wind, waves, currents, tides, ice conditions, temperature, earthquakes, etc. shall comply with the relevant provisions of the "Technical Specifications for Beach Environmental Conditions and Loads".
4.2.2 The characteristics related to the seasonal changes of seawater and the seabed soil along the pipeline shall be considered, including temperature (air temperature, water temperature, seabed soil temperature, salinity, water content, pH value, resistivity, sea currents and marine organisms. Activities, etc., on the corrosion control and protection system of the pipeline system
4.2.3 The impact of all marine organisms within the sea area where the pipeline system is located on the system should be considered, and the load changes and their impacts caused by marine organisms attached to the pipelines and risers should be considered
4.3 Internal conditions of pipes
4.3.1 Installation conditions
A description of the internal status of the pipes during storage, installation and pressure testing until commissioning should be prepared. Determine whether temporary anti-corrosion measures are required based on the duration of exposure of the pipes and their accessories to seawater and humid air. 4.3,2 Operating conditions
4.3.2.1 The physical properties and chemical composition of the conveying medium, as well as the pipe1 During the design and construction of the pipeline system, the influence of various natural environmental conditions and internal conditions of the pipe on the pipeline system shall be considered. The loads on the pipeline can be divided into: environmental load, working load (including installation state and in-situ state and accidental load, etc. 4.2 Natural environmental conditions
4.2.1 The selection of natural environmental conditions such as wind, waves, currents, tides, ice conditions, temperature, earthquakes, etc. shall comply with the relevant provisions of the "Technical Specifications for Beach Environmental Conditions and Loads".
4.2.2 The characteristics related to the seasonal changes of seawater and the seabed soil along the pipeline shall be considered, including temperature (air temperature, water temperature, seabed soil temperature, salinity, water content, pH value, resistivity, sea currents and marine organisms. Activities, etc., on the corrosion control and protection system of the pipeline system
4.2.3 The impact of all marine organisms within the sea area where the pipeline system is located on the system should be considered, and the load changes and their impacts caused by marine organisms attached to the pipelines and risers should be considered
4.3 Internal conditions of pipes
4.3.1 Installation conditions
A description of the internal status of the pipes during storage, installation and pressure testing until commissioning should be prepared. Determine whether temporary anti-corrosion measures are required based on the duration of exposure of the pipes and their accessories to seawater and humid air. 4.3,2 Operating conditions
4.3.2.1 The physical properties and chemical composition of the conveying medium, as well as the pipe
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