This specification specifies the safety, size and function of interchangeable wellhead equipment and Christmas trees. In terms of technical content, this specification specifies the performance, design, materials, testing, inspection, welding, marking, packaging, storage and transportation requirements for manufacturers. SY/T 5127-2002 Wellhead Equipment and Christmas Tree Specification SY/T5127-2002 Standard download decompression password: www.bzxz.net

ICS 75.180.10
Registration number: 10422-2002
Petroleum and natural gas industry standard of the People's Republic of China SY/T 51272002
Replaces SY5279.1-91, SY5279.2-91, SY 5279.3--91, SY 512792, SY 515693 Specification for wellhead and christmas tree equipment2002 - 05 28 Issued by
National Economic and Trade Commission
2002-08-01 Implementation
1 Scope
Product Specification Level (PSL)
Transformability
2 Normative references
Referenced documents
Equivalent standards
3 Abbreviations and definitions
3.1 Abbreviations
, Terms and definitions
4 Design and performance
·General requirements
4.1 General performance requirements
Working conditions
4.3 Design method,
4.4 Other design information
Design documents··
Design review
Design verification·||t t||5 Materials
General requirements
Written specifications·
Body, cover, end and outlet connections of mandrel-type tubing hanger and casing hanger
Sealing gaskets.
Test specimens (TC)
Qualification specimens (QTC)
5.8 Heat treatment equipment
5.9 Material verification
6 Welding
6.1 General test·.
General requirements
6.2 Non-repellent welding except overlay welding (PSL1~3)6.3 Fabrication welding of pressure-containing parts
6.4 Repair welding of pressure-containing parts
Body, cover, end and outlet connections·Body, cover, end and outlet connections
SY/T 5127—2002
SY/T5127—2002
6.5 Corrosion-resistant cladding and (or) surface hardening cladding and their 7. Quality control
7.1 Scope
7.2 Quality control records
7.3 Measurement and test equipment·
Qualifications of quality control personnel·
Quality control requirements
7.6 Requirements for quality control records·
8. Marking·
Marking requirements·
And equipment·
Connecting equipment and accessories
Casing hanger and tubing hanger
Valves and choke valves...
Single-piece connecting equipment (flange, threaded, other end connection convex (OEC) and welding)Other equipment·
Studs and nuts
Christmas tree
Storage and transportation
Discharge after test
Rust prevention·
Sealing surface and expansion
Assembly and maintenance instructions·
Seal ring
Aging control of non-metallic materials
10 Equipment| |tt||Special requirements
API flanged end and outlet connections
AP threaded end and outlet connections
Studs and nuts
Sealing rings
Casing heads and tubing heads
Casing (tubing) hangers·
Tubing head reducing devices·
Throttle valves
Tees and crosses
Test and instrument connections for 103.5MPa and 138.0MPa devicesFluid samplers
Christmas trees
Transition connections
Reducing crosses and transition crosses
Drivers
Locks Screw, dowel pin and stop screw isolation mechanism 40
10.18 Other end connections (OECs) 10.19 Item connections
10.20 Surface and submerged safety valves and actuators for offshore operations 11
Requirements for repair and overhaul
General -
Repair and overhaul level (RI)
Design·
Material for replacement parts
Repair·
Quality control·
11.8 Marking of devices
Appendix A (Informative Appendix) Purchase Guide
General·
Data sheet
Throttle valve|| tt||A.4 Typical wellhead and Christmas tree structureA.5 Product specification level..
A.6 HS exposure radius (ROE)
A.7 Corrosiveness of stored fluids:
Appendix B (Informative Appendix)APISpe:6A Metric tables and dataB.1 Metric data -
13.26B and 6BX flanges
13.3 Other equipment dimensions
B.4 Conversion factors
B.5 Metric drawings and tables
General information
Appendix C (Informative Appendix)
Calculation method for the length of fully threaded bolts for 6B and 6BX flangesC.. Calculation..
C.2 Lavatory rules
C.3 Height of the end of the fully threaded bolt
C.4 Flange face spacing S
Appendix D (informative) Recommended flange bolt torque D.1 General..
D, 2 Basis of the table
D.3 Equation..
D.4 Recommended special flanges
Appendix E (informative) Recommended welding groove design dimensions E.1 Pipe butt weld
F.2 Attachment welding
E.3 Repair welding
E.4 Typical bead sequence for repair welding and overlay welding
Appendix F (informative) Performance qualification procedure F.1 Performance qualification
-General requirements
SY/T 5127—2002
SY/T5127--2002
F.2 Special qualification tests for products
G (Informative Appendix) Design and determination of ratings for devices at high temperaturesG.1 General principles***
G.2 High temperature ratings
G.3 Reduced pressure and rated temperature values
G.4 Marking of reduced rated values
G.5 Design of high temperature devices.
Appendix H (Informative Appendix) Recommended practice for qualification of heat treatment equipmentH.1 Temperature tolerance
H.2 Calibration of furnaces|| tt||H.3 Instruments
Appendix [(Informative Appendix) Revised Pipe Tolerance Appendix] (Informative Appendix)
Comparison of AP6A and API6AR standards and usage for repair and overhaul of equipment and Christmas trees
J.1 Background
J.2 General questions and answers about APISpcc6A and RP6AR Appendix K (Informative Appendix) Use of API monogram by AP1 license holders Appendix L (Informative Appendix) Failure report of surface safety valve (SSV) and subsea safety valve (USV) (at least including data)
SY/T 5127--2002
This specification is equivalent to AP1SIkc6A "Specifications for Equipment and Christmas Trees" (1999, 17th edition). Some differences between this specification and APIISpec6A 17th edition "Parallel Port Installation and Christmas Tree Equipment Specification" (English version of 1999) are: - The drawings and scale markings of APISpec6AF were redrawn in accordance with the requirements of the national standard for drawing; some individual errors in APISpec6A were corrected and explained in footnotes where appropriate; - The imperial data in APISpcc6A were converted according to the International System of Units (SI system), and the SI system diagrams and data in Appendix B of APISpec6A were directly incorporated into the text of this specification, and the conversion rules were partially retained. The code for the nominal size of equipment is expressed in the form of imperial fractions in this specification to facilitate use and international communication. This specification adopts the same format as API Specification 6A (1999, 17th edition) and follows the same format as that of its content. The arrangement order of the appendix is ​​also the same as that of API Specification 6A (1999, 17th edition). However, in combination with the requirements of GI 3/1.1-2000 for standard writing, the following editorial modifications are made:
According to GB/T 1.1-2000, the figures and tables are renumbered in order instead of by chapters; the API foreword, special tips, important information about asbestos and its substitute materials and other explanatory documents are cancelled; some tables are merged and re-edited, and footnotes are given to explain the editorial additions or merged tables; in the secretion data table in the body of this specification, "the screw control specifications and corresponding screw hole sizes consistent with API Sper: 6.4- and in accordance with the national standard of my country are added, and footnotes are given to explain; the foreword is added.
By adopting API Spec6A "Parallel port device and Christmas tree equipment specification" (19 99, 17th edition), to align the standards of my country's important oil and gas production equipment, well equipment and Christmas trees, with advanced foreign standards to meet the needs of international trade, technical and economic exchanges and participation in international standardization activities.
Compared with SY5279.1-91, SY5279.2-91, SY5279.3-91, SY5127-92 and SY5156-93, this specification has the following major changes:
When converting the rated working pressure level to the imperial data, one decimal place is retained according to APTSpec6; the two levels of 7MPa and 24.5MPa are cancelled in the rated working pressure level regulations. Special features: Added some flange and sealing gasket specifications: - Added requirements for ground safety valves, underwater Anlun valves, conversion connection devices, drivers and other equipment: - Added requirements for repair and construction; Added design and performance requirements;
Added appendix.
From the date of implementation, this specification will replace SY5279.1-91 "Rated operating pressure and nominal diameter series of oil wellhead devices", SY5279.2--91 "Type, size and technical requirements of flanges for oil wellhead devices", SY5279.3-91 "Type, size and technical requirements of sealing gaskets for flanges of oil wellhead devices", SY5127- 92 "Petroleum Slice-mouth Device Casing Head", SY5156-93 "Oil (Gas) Parallel-mouth Device"
Appendix A, Appendix B, Appendix C, Appendix T), Appendix E, Appendix F, Appendix G, Appendix H, Appendix I, Appendix J, Appendix K, Appendix "of this specification are all informative appendices. This specification is proposed and managed by the National Shichi Drilling Equipment and Tool Standardization Technical Committee. The drafting units of this specification are: Petroleum Exploration and Development Scientific Research Institute, Jianghan Machinery Research Institute, National Oil and Gas Wellhead Equipment Quality Supervision and Inspection Center
The main drafters of this specification are: Zhang Bin, Wen Zhixiong, Qin Zhihong, Liu Xuemei, Zhang Bin: V
SY/T 5127--2002
The previous versions of the standards replaced by this specification are:-SY 5279.1--91, GI3 3165.1-82;SY 5279.2-91, GB3165.2-82;
SY 5279.3-91, GB 3165.3-82;SY5127-92,SY5127--86,SY5201-87;-SY5156-93,SY5156.1-SY5156.6-87. 1 Scope
1.1 Purpose
Wellhead Equipment and Christmas Tree Specification
This specification specifies the safety, size and function of the parallel gate equipment and Christmas tree. SY/T 5127—2002
This specification specifies the performance, design, materials, testing, inspection, welding, marking, packaging, storage and transportation requirements for manufacturers in the technical scope. This specification does not apply to wellhead devices and Christmas trees in service or wellhead surfaces and Christmas trees being tested on site. Key parts refer to those components that have specified requirements in this specification: 1.2 Applicability
1.2.1 Scope
This specification includes pressure control system equipment used in oil and gas production, including the following specific equipment: a) Parallel port device:
1) Casing head housing:
2) Casing head four-way;
3) Tubing head four-way;
4) Conversion four;
5) Multi-section head housing and four-way|| tt||b) Connecting devices and accessories:
1) Conversion connecting devices:
2) Tubing head reducing connection:
3) Internal connecting devices:
4) One-way and four-way:
5) Fluid sampler;
6) Reducing four-way and transition four-way:
) Casing hanger and tubing hanger:
1) Mandrel hanger:
2) Slip hanger.
d) Valves and throttles:
1) Single-layer completion valves:
2) Multi-layer completion valves;
3) Drive valves;
4) Valves for actuators;
5 Check valves;
6) Throttle valves;
7) Rain safety valves and underwater safety valves and actuators for offshore operations; e) Single-piece connection devices [flange type, threaded type, other end connection devices (OE() and welding type]: 1) Weld neck connection devices;
2) Starter plate connection devices;
3) Threaded connection devices;
SY/T 5127—2002
4) Reducing connection devices and isolation connection devices:) Other devices:
1) Driver;
2) Gasket.
Typical equipment terms used in this specification are shown in Figures 1 and 2. Appendix A provides users with an ordering guide for API Spec 6A units. 1.2.2 Conditions of Use
1.2.2.1 General
The conditions of use take into account the pressure, temperature levels and different body structures and operating conditions. 1.2.2.2 Rated Pressure Values
The rated pressure value refers to the rated working pressure expressed in MPat. 1.2.2.3 Rated Temperature Values
The rated temperature value refers to the temperature range from the minimum ambient temperature to the maximum fluid temperature, expressed in degrees Celsius (2). 1.2.2.4 Material Category Specifications
Material categories refer to the materials used in the unit components. The procurement guide for materials used in the basic body structure and operation is shown in Appendix A. 1.3 Product Specification Levels (PSL)
1.3.1 General
This specification specifies four product specification levels (PSL) with different technical requirements. Appendix A provides guidance for selecting the appropriate PSL (informative appendix). bZxz.net
1.3.2 PSL1
ISL1 includes the recommended conditions of use in Appendix A of this specification and is the current practice widely implemented by the petroleum industry: 1.3.3 PSL2
FSL2 includes all the requirements of PSL1 and the recommended conditions of use in Appendix A of this specification and is the additional practice widely implemented by the petroleum industry.
1.3.4 PSI3
PSL3 includes all the requirements of FSL2 and the recommended conditions of use in Appendix A of this specification and is the additional practice widely implemented by users.
1.3.5 PSL4
IPSL4 includes all the requirements of PSL3 and the recommended conditions of use in Appendix A of this specification and is the additional practice widely implemented by users.
1.4 Interchangeability 3)
This specification uses the metric system to express the size, and the code for the nominal size is expressed in the form of imperial fractions. This change reflects current widespread industry practice from previous editions of AISpec 6A. This specification does not intend to revise fractional dimensions and tolerances from earlier editions. The equivalent values ​​of fractions to decimals are given in the Tables. For the purposes of this specification, fractions and their decimal forms are equivalent and interchangeable. Metric conversion tables are provided in Appendix B. The millimeter dimensions of this specification are based on the original English fractional dimensions. The original English fractional dimensions have been accurately converted to metric dimensions to ensure interchangeability of products produced in both metric and English systems. All parts whose actual dimensions conform to the data in the English tables in the body of this specification or the metric tables in the appendix are interchangeable in this specification. 1) API Spec 6A uses psi or MPa as the pressure measurement unit, and this specification uses MPa as the pressure measurement unit. 2) API Spec 6A uses C or F as the humidity measurement unit, and this specification uses T as the overflow measurement unit. 3) This specification adopts SI units. All relevant dimensions that conform to the SI table in Appendix B of API Spec 6A have been incorporated into the body of this specification.
Also, all-ceramic control pipeline outlet
Column side outlet
Threaded outlet connection
Flanged outlet connection
Flanged end connection
Threaded outlet connection
SY/r5127—2002
1-Underground safety valve control pipeline; 2, 34, 35.39-Tubing head reducer: 3, 38-locking screw: 4-Tubing hanger isolation; 5-Extension collar tubing hanger with safety valve control pipeline; (, 19, 23-Bottom casing isolation: 7, 17, 41-Oil joint cross; 8-Double stud reducer; 9.2U, 24-Annular casing isolation; 10.25-Slip casing hanger; 11, 26-Casing head body; 12, 27-Surface casing: 13-Parallel support plate; 14-Extension collar tubing hanger seal Seal; 15-annular tubing hanger seal; 16 mandrel tubing hanger; 18, 33, 35, 43-a tubing; 21-mandrel casing hanger; 22-casing spool; 28-middle casing; 29-inner casing; 30-pipe isolation support; 31-rod isolation; 32-slip tubing hanger; 37-tubing hanger mandrel seal; 40-mandrel-type tubing main hanger; 42-winding hanger isolation Figure 1 Typical terminology of wellhead assembly
SY/T 5127--2002
Pre-connection
1-Stop valve; 2-Blow-off valve or top adjustment (pipeline valve): 3-Tee: 4-Wing valve (pipeline valve): 5-Throttle valve (mixing nozzle): 6-Upper valve (pipeline valve): 7-Tubing head reducing connection device Figure 2 Typical Christmas tree terms
Table 145
6Multiples
Y2Multiples
Fractional to decimal conversion table
Ya4 Multiples
Retain to 3 decimal places
Retain to 2 decimal places
4) According to the provisions of GB/T1.1-2000, the table numbering is not divided into chapters but is based on the unified compilation of the text. The fault position of Table 4.4 in ASpec(A) is moved forward to the table of this specification
6 Multiples
32 Multiples
Table 1 (continued)
Yr is used as a number
Retain to 3 decimal places
SY/T S127-2002
Retain to 2 decimal places
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