Some standard content:
ICS 75.180.10
Registration No.: 10481—2002
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T 10037--2002
Replaces SY/T 4804—92
Rules for submarine pipeline system2002 - 05 - 28 Issued by
National Economic and Trade Commission
2002-08-01 Implementation
DNV Foreword
Chapter 1
General Principles
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Item Data, Safety Principles and Design
Strength and Stability| |tt||Line pipe
Pipeline components, equipment and structural parts
Anti-corrosion coating and counterweight layer
Operation and maintenance
Chapter 11 Condition evaluation and recertification
Appendix A (Normative Appendix) Structural design calculation examples Appendix B (Normative Appendix)
Mechanical test and corrosion test
Appendix C (Normative Appendix)
Appendix D (Normative Appendix)
Non-destructive testing (NDT)
SY/T 10037—2002
SY/T 10037—2002
This standard is equivalent to the Norwegian Classification Society "Submarine Pipeline System Rules" (DNV, Rules fcrSubmarinePipelineSystem, 1996 Edition), replacing SY/T4804-92 "Submarine Pipeline System Rules". This standard introduces the limit state design method and reflects the recent development and progress in the field of submarine pipelines. When the laws, regulations and provisions of the government or other authorities of the country where the original standard is located are involved in use, they shall be implemented in accordance with the corresponding laws, regulations and provisions promulgated by the government of the People's Republic of China or the competent government departments. The data or quantitative calculation methods in the original standard can be used if they are suitable for my country's actual situation; otherwise, according to my country's specific conditions, my country's data and quantitative calculation methods shall be used. The measurement units shall be based on my country's legal measurement units, that is, the value of my country's legal measurement units is in front, and the corresponding value of the imperial unit is marked in brackets after it. In order not to change the original standard formula, curve shape characteristics, constants and coefficients, the original use of English units, still use English units
Appendix A, Appendix B, Appendix C, Appendix L of this standard are normative appendices. This standard is proposed and managed by China National Offshore Oil Corporation. Drafting unit of this standard: Offshore Oil Engineering Co., Ltd. Design Branch: Main drafters of this standard: Zhao Dongyan, Cao Jing, Sun Guomin, Qu Chengwei, Pan Xiaodong, Yin Xinzhong Chief reviewer of this standard: Wang Jinying.
DNV Foreword
This specification replaces the 1981 edition of the "Submarine Pipeline System Specification". The purpose of this specification is: SY/T10037-2002
- As the basic criteria and statutory requirements for applying for submarine pipeline certificates issued by DNV classification society; determine the minimum requirements for design, construction, operation, recertification and pipeline abandonment related certificates related to the certificate. - Provide an internationally acceptable standard for the strength and functional safety of submarine pipeline systems.一 "一 As a technical reference document in contractual matters between owners and contractors or contractors and subcontractors. As a guide for designers, owners, contractors and other personnel not directly involved in certification, this specification is consistent with the provisions of the current ISO13623 draft standard for pipeline transportation systems in the petroleum and natural gas industry, and includes guidance on the use of reliability-based limit state design by considering partial safety factors for load benefits and strength. In order to obtain an acceptable safety standard, this specification allows free choice of technical solutions. Several possible practices that may be adopted to meet the requirements of this specification are described in more detail in the supporting classification instructions, guidelines and recommended practices issued by classification societies. The relevant documents are listed in Chapter 1, 1.2.10.
1 General
1.1 Purpose
1.1.1 The purpose of this standard is:
Submarine Pipeline System Specification
Chapter 1 General
a) As the basic principles and specification requirements when applying for DNV submarine pipeline system certification, SY/T 10037—2002
b) To provide an internationally acceptable standard of safety in terms of strength and functionality by defining the minimum requirements for the design, materials, manufacture, installation, commissioning, operation, maintenance, recertification and decommissioning of submarine pipeline systems. c) To serve as a technical reference document in contractual matters between the owner and the contractor, and between the contractor and its subcontractors. d) To specify the minimum requirements for the design, manufacture, installation, operation, recertification and decommissioning of submarine pipeline systems subject to DNV certification.
) To serve as a guide for designers, owners, contractors and other persons not directly involved in the certification process. 1.1.2 If a pipeline system is subject to DNV certification, the certification requirements of Chapter 2 shall be met. Wherever the terms consent or adaptation appear in this rule, these two terms mean the consent or acceptance of the Society when a particular pipeline system is subject to LNV certification. In other cases, these consents or acceptances may be based on contractual agreements between the owner or contractor. 1.1. 3 Subject to clauses c) and e) of 101, the application of these requirements, in part or in full, is outside the responsibility of the Society. 1.1.4 Unless otherwise specified, the requirements in the Appendix are also mandatory and apply to the Rules as a whole. 1.2 Application
1.2.1 These requirements apply to submarine pipeline systems as defined in section 2 of this Chapter, where the fluids conveyed by such submarine pipeline systems are defined in 3.2 of Chapter 3. The objective of the Rules is to prevent danger to life, loss of property or serious pollution during the construction, operation, recertification and decommissioning of pipeline systems.
1.2.2 In the event of a conflict between the requirements of the Rules and the referenced documents, the requirements of the Rules shall prevail unless the referenced documents provide specific instructions for the Rules.
1.2.3 The Rules apply to the design, materials, construction, operation, maintenance, recertification and decommissioning of submarine pipeline systems for the petroleum and natural gas industries and may be applied to single-function pipelines, tied-in pipeline bundles and pipeline bundles with carrier pipes inside. 1.2.4 The scope of application for carrier pipe materials is given in 1.1 of Chapter 6. 1.2.5 Flexible risers and flexible pipes intended for offshore use with design pressures above 1.55 MPa (225 psi) are described in the Guide to Combustible Pipe and the Specification for Flexible Pipe and Flexible Pipe Certification, November 1987. Composite pipes/risers shall comply with the requirements of the API 15HR Specification for High Pressure Fiberglass Transport Pipe.
1.2.6 The specification applies to steel risers made of materials complying with this specification and connected to fixed structures. 1.2.7 Control lines intended for offshore installations are not included in this specification. Separate pipes made of materials complying with this specification in control lines may be designed in accordance with this specification. 1.2.8 The construction requirements given in Chapter 9 of this specification apply to S-lay, J-lay, drag pipe and laying methods that produce plastic deformation, and also include requirements for risers and protection and anchoring structures. 1.2.9 Classification societies may revise these requirements from time to time. Unless otherwise stated, these amendments shall take effect six months after the date of publication. 1.2.10 The following specifications, CVs, guidelines and recommended practices (RPs) support this specification: - CVs for fixed offshore installations:
- Specification for the certification of flexible pipes and flexible risers; Guidelines for flexible pipes (2nd edition, November 1987); 1
SY/T 10037—2002
DVV certification notes: No.1, 2: [NV conformity certification services: type approval; - DNV certification notes: No.1.5: DNV conformity certification services, manufacturer approval, metallic materials; - CN 7 Ultrasonic testing of welds:
CV30.2 Fatigue strength analysis of mobile offshore installations; - CV 30, 4 Fundamentals;
-CN30.5 Environmental conditions and environmental loads;
-CN30.6 Structural reliability analysis of marine structures; - RP 3104 Bolted connections (January 1987); - RPE 305 Submarine pipelines on the seabed 1: Stability design [October 1988] - RPB 401: Cathodic protection design (1993); - RPO 501 Erosion of piping systems (1996); Guide N13: Interaction between trawling and pipelines. The latest versions of the above documents should be used. The versions given are valid at the time of publication of these specifications. For detailed information, please refer to the current catalogue of publications.
1.2.11 When the classification authority is authorized by the state as the certification body for facilities, this specification can be used as a supplement to national regulations: 1.2.12 When these requirements are partially reproduced or applied, please indicate the source. 1.3 Quality Assurance
1.3.1 The requirements of this rule are based on the assumption that the alternative pipeline system is designed, constructed and operated by qualified personnel in accordance with good engineering practice.
1.3.2 Quality assurance requirements are given in Chapter 3, 2.3. 1.4 Alternative methods and procedures
1.4.1 Classification societies may consider methods and procedures different from those specified in this rule. 1.4.2 Where methods and procedures other than those specified in this rule are used, it shall be demonstrated that the level of safety achieved is equivalent to that specified in this rule, see Chapter 3, 3.6.
1.5 Other rules and standards
1.5.1 The DNV Rules for Submarine Pipeline Systems have specified requirements in such a way as not to conflict with ISO 13623, Pipeline Transportation Systems for the Petroleum and Natural Gas Industries. This rule can be considered as a supplement to ISO standards by giving guidance on how to meet the requirements of ISO. 1.5.2 This specification may be used as a supplement to the laws, decrees and regulations issued by the management body controlling the design and contract in the corresponding regions and occasions.
1.5.3 When referring to other standards other than DNV, the effective version refers to the effective version when these standards are issued, otherwise it shall be stated separately. 2.
As-BuiltSurvey
A survey of the completed piping system. This survey is carried out to "confirm that the completed construction work meets the specified requirements and mark the differences from the original design (if any) on the document. 2.2
AsLaid Survey
A survey conducted by monitoring at continuous touchdown points or by a special vessel during the construction work. 2.3
Atmospheric Zone
The part of the piping system in the splash zone. 2.4
Global buckling, Global
usually refers to Euler buckling or rod buckling,
Local buckling, Local
refers to the buckling form of section deformation. For example, buckling caused by external pressure and bending moment or their combination. Characteristic Load Characteristic Laad
SY/T 10037—2002
Used to determine the load reference value of load influence. The characteristic load is generally determined based on a quantile at the upper end of the load distribution function. Characteristic Resistance Characteristic Resistancc is used to determine the nominal value of the structural strength of the design strength. The characteristic resistance is generally determined based on a quantile defined at the lower end of the resistance distribution function.
Characteristic Strength Characteristic Strength is the nominal value of the material strength used to determine the design strength. Characteristic strength is generally determined based on the individual quantiles defined at the lower end of the degree distribution function.
Client
refers to the party that is fully responsible for the pipeline system that has been laid and is ready for use in accordance with valid laws, decrees and regulations. 2.10
Commissioning
refers to the period before operation, after the hydraulic test, including drainage, cleaning, drying and filling the pipeline with products. 2.11
Condition coefficient facton
Load factor for considering specified load conditions in buckling calculations. 2.12
Contractor
refers to the party who signs a contract with the owner to complete all or part of the necessary work to complete the construction of the pipeline system and achieve operable conditions. 2.13
Construction phaseConstruction phase
All phases of the construction period, including transportation, welding on the pipe-laying ship, laying, repair, connection, pressure test, trial operation and maintenance.
Corrosion Allowance
The amount of pipe wall thickness required to be increased due to corrosion. 2.15
Design Life
The time from installation to permanent shutdown of the pipeline system. 2.16
Design Temperature, Minimum (Tmn) The lowest possible temperature to which the pipeline system is subjected during construction and operation (regardless of whether it is under pressure). Environmental and operating temperatures should be considered: 2.17
Maximum Design Temperature, Maximum (Tmax) The highest possible temperature that the piping system will be subjected to during installation and operation. Environmental and operating temperatures should be considered. 3
SYT 10037--2002
Design Value DesignValuc
The value used by the deterministic design method, that is, the characteristic value corrected by the resistance factor or load factor (partial safety factor). 2.19
Fabrication
All work related to assembling materials into objects with specified uses, such as risers, expansion bends, etc. Generally includes cutting, forming and welding of materials
Failure
An event that causes an adverse condition (for example, failure of a system function or component, or a reduction in function to a level that significantly reduces the safety of equipment, personnel or the environment),
Fatigue
Material damage caused by cyclic loading.
Fluid Categurisation
Classification according to the degree of danger of the transported fluid. 2.23
Fraetilc
The quantile (or percentage) and the corresponding quantile value X are defined as follows: F(X) = P
Where: F is the distribution function of X,
Hydrostatic TestHydro-test or Hydrastatlc TestHydrostatic strength test conducted in the pipe factory, 2.25
Inspection
Measure, inspect, test, measure one or more characteristic values of a product or function and compare the results with the specified requirements to ensure compliance.
InstallationInstallatinn
Operations related to the construction of pipeline systems, such as installation, offshore connection, etc. Installation (installation) can also refer to structures or other objects.
Installation Manual (M) A document describing the installation method and equipment proposed by the contractor, which meets the specified requirements and whose results can be verified.
J-tube
J-tube
J-tube is a type of pipe installed on the platform, through which the pipe can be pulled into the riser. The range of the J-tube is from the platform deck to the bend on the seabed. The J-tube is connected to the supporting structure by a type of support. 2.29
Limit StateLimitState
SY/T 10037-2002
Beyond this state, the structure no longer meets the requirements. The relevant limit states for the piping system are divided into the following: SLS - normal use limit state;
L:LS - bearing capacity limit state;
FLS - fatigue limit state;
ALS accidental limit state.
LinepipeQualityLevelFor a given strength range of linepipe, the range of chemical composition, mechanical tests and N[)I and the acceptance criteria have the same requirements for linepipe
LoadLoad
Any action that causes stress, strain, deformation, displacement, movement, etc. in the pipeline system. 2.32
Load effectIAdEffect
The effect of a single load or a combination of loads acting on the pipeline system, such as stress, strain, deformation, displacement, movement, etc. 2.33
Load Factor Tnad Factor
Partial safety factor, characteristic load multiplied by this number to obtain the design load. 2.34
Lacation Class
Geographical area of bamboo road system divided according to human activities 2.35
Lot
A batch of pipes with the same diameter and wall thickness from the same furnace, the same heat treatment process. 2.36
Manufacturing Procedure Specification (MPS) Documents prepared by the manufacturer, which should explain how the specified properties are achieved and verified through the recommended manufacturing procedures. 2.37
Nominal Pipe Wall Thickness The specified wall thickness of the pipe without demon corrosion, which is equal to the minimum wall thickness plus the manufacturing tolerance: 2.38
Normal Operation Operation, Normal Operation The state that occurs during normal operation of the piping system. Includes stable flow conditions during the entire flow process and possible blockages and closures that occur during operation.
Operation, Incidental Operation Operation conditions other than normal operation of the pipeline system. This condition can produce abnormal pressure, for example, water hammer caused by the sudden closure of the valve or failure of the pressure regulation system and the activation of the pressure safety system. 2.40
Oul of rnundness
Deviation from the circumference. This can be an ellipse, that is, the cross-section is an ellipse, or a part that is not round, such as flattening. The mathematical definitions of out-of-roundness and ellipticity are the same,
SY/T 10037—2002
Ovalisation
Deviation from the circumference: This deviation is expressed in the form of an elliptical cross-section. Ovality and out-of-roundness have the same mathematical definitions. 2.42
Operator
Operator of a piping system:
Partial Safety FactorThe factor used to give the design value (i.e., load, condition or resistance factor) for the characteristic value of a variable. 2.44
Seamless steel pipe Pipe, Seamless (SML) is a weldless tubular product manufactured by a hot forming process. After hot forming, it can be sized or cold worked to obtain the required size. 2.45
High Frequency Welded Pipe, High Frequency Welded (IIFW) is a steel pipe manufactured by steel strip forming and has a longitudinal weld. The weld is formed by a welding process without filling weld metal. The longitudinal weld is formed by a high-frequency current (minimum 100kHZ) generated by induction or conduction. The weld zone or the entire root must be heat treated. 2.46
Submerged arc welded pipe Pipe, Submer gcdArc-Welded (SAWL or SAWH) is a steel pipe made from steel strip or steel plate and has a longitudinal (SAWL) or spiral (SAWH) weld. The weld is formed by the submerged arc welding process, with at least one weld inside and outside the pipe: continuous or intermittent single-pass tack welding with gas metal arc welding is allowed. 2.47
Pipeline
As part of a pipeline system, it is the part of the pipeline system below the water surface at the highest tidal level, excluding pipeline risers. The pipeline may be suspended above the seabed in whole or in part, sitting on the seabed or buried in the seabed. 2.48
PipelineSystem
A pipeline system is a set of interconnected systems of submarine pipelines, their risers, supports, shut-off valves, all network components, related safety systems and anti-corrosion systems. If not otherwise specified, the boundaries of a pipeline system are as follows: up to and including the pig launcher/receiver. If there is no pigging facility, the pipeline system terminates at the first valve on the facility - on the underwater structure. The pipeline system generally terminates at the connection point with the Christmas tree or a butterfly valve. The Christmas tree does not serve as a pipeline system. Considerations as part of the system:
--In underwater structures L where the above definition cannot be applied, the pipeline system terminates at the connection point with the underwater structure, and the connection system is part of the pipeline system.
In the nearshore section, the pipeline system terminates at the first flange or valve. 2.49
PipelineCompoents
Components that are necessary to form the entire pipeline system, such as flanges, tees, elbows, reducers and valves. 2.50
Pressure Control SystemPressure Control System The pressure control system of the pipeline includes the pressure regulating system, the pressure safety system and the related instrumentation and alarm systems. 2.51
Pressure Kegulating SystemThis system ensures that the pipeline maintains the positioned pressure (at a given reference point) regardless of changes in upstream pressure. 6
Pressure Control System
Control Point
Control Point
Design Quality
Figure 1 Definition of Pressure
Hydrostatic Pressure (Factory Test)
Pressure Ph
Maximum Allowable
Occurrence Pressure Plr
Maximum Allowable
Operation Pressure P
Pressure Safety SystemPressureSafetySystemThis system is independent of the pressure regulation system and ensures that the allowable accidental pressure is not exceeded. 2.53
Collapse PressurePressureCollapsePressure (p) Characteristic ability to resist external overpressure.
SY/T10037—2002
Design PressurePresgure, DesignPressure (Pa) The maximum internal pressure during normal operation. This force should indicate at which height of the designed pipeline or pipeline section it is. The design pressure must take into account steady flow conditions over all flow ranges and possible blockage and closure conditions over the entire length of the pipeline or pipeline section using a constant design pressure.
Hydro-or Hydrostatic Test Pressure (factory test pressure, P.) Pressure, Hydro-or Hydrostatic Test Pressure The test pressure applied to the pipe section and pipe components after they are manufactured. 2.56
Initiation Pressure Pressure, Initiation Pressure [Pinit The external correction required to cause an existing local curvature or defect to begin to produce an extended curvature. See Chapter 5, 3.3.14. 2.57
SY/T 10037—20H12
Local Pressure, Local Design Pressure Pressure, LacalPressure; Local Design Pressure or Local Incidental Pressure Local Incidental Presasure (pr) The internal pressure corresponding to the design pressure or incidental pressure at any point in the pipeline system or pipeline section. It is equal to the design/incidental pressure at the reference elevation point plus the static pressure head of the conveyed medium caused by the height difference between the reference point and the point in the pipeline section under consideration. The local design pressure generally refers to the internal pressure of the designed pipeline, unless the pressure test gives other requirements, see Article 9, 15.5. 2.58
Maximum allowable operating pressure Pressure, Maximum Allowable Operating Pressure (Pmao) The maximum pressure in normal operation, the pipeline system operates at this pressure. The maximum allowable operating pressure is defined as the design pressure minus the positive error of the pressure regulating system.
Maximum incidental pressure Pressure, Maximum Incidental Pressure (pi) The maximum allowable internal pressure of a pipeline or pipe section during incidental operation. 2.60
PropagatingPressure (ppr) The pressure required for the buckling to occur, see Chapter 5, 3.3.14, 2.61bzxz.net
Test Pressure (p, the internal pressure applied to the pipeline or pipe section to test the strength and watertightness of the pipeline after installation. (Generally like a hydrostatic test)
Quality Assurance
The necessary planned and systematic actions to provide appropriate confidence in the quality requirements of a product or service. 2.63
Quality LevelQuality Level
Specified material classification.
Ratcheting
Accumulated deformation under cyclic loading, especially ovalization. 2.65
Reliability
The ability of a component or system to perform the required function without failure within a specified time. 2.66
Re-qualification
Re-evaluation of the design due to changes in design premises and/or pipeline damage. 2.67
Resistance
The ability of a structure or part of a structure to resist the effects of loads. 2.68
Resistance Factor
Partial safety factor, divided by the characteristic strength to obtain the design strength, usually called material factor in other literature. 2.69
Riser
The steel pipe or flexible pipe connecting the submarine pipeline to the above-water structure, such as the platform soil processing equipment, 8
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