SY/T 6895-2024 Coiled tubing English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
E
Professional standard of the People's Republic of China
SY/T 6895-2024
Replaces SY/T 6895-2012
Coiled tubing
连续油管
(English Translation)
Issue date: 2024-12-25 Implementation date: 2025-06-25
Issued by National Development and Reform Commission, P.R.C
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Symbols
5 Ordering Information
5.1 Information to be supplied by the purchaser
5.2 Options to be specified by the purchaser
6 Raw Materials and Manufacturing Process
6.1 General
6.2 Weld types and welding process
6.3 Heat treatment
6.4 Traceability
7 Material Requirements
7.1 Chemical composition
7.2 Tensile properties
7.3 Hardness
7.4 Grain size and non-metallic inclusions
7.5 Flattening
7.6 Drift expanding
7.7 Impact toughness
7.8 Metallographic examination
8 Dimensions, Mass Per Unit Length, Imperfections, and End Finishing
8.1 General requirements
8.2 Length and cross-section
8.3 Diameter
8.4 Wall thickness
8.5 Mass per unit length
8.6 Pipe-to-pipe girth welds
8.7 Workmanship and imperfections
8.8 End finishing
9 Inspection and Testing
9.1 Test equipment
9.2 Chemical analysis
9.3 Mechanical property tests
9.4 Grain size and non-metallic inclusions
9.5 Hydrostatic test
9.6 Drift (bar) test
9.7 Fatigue life testing
9.8 Invalid tests
10 Non-destructive Testing
10.1 General
10.2 NDT reference standards
10.3 Personnel qualification
10.4 Testing standards
10.5 NDT methods
10.6 Radiographic testing of strip girth welds and pipe-to-pipe girth welds
10.7 Other NDT methods for welds
10.8 Ultrasonic and electromagnetic testing of longitudinal weld seam
10.9 Magnetic particle and liquid penetrant testing
10.10 Disposition of defects and imperfections
11 Retesting
11.1 Chemical composition
11.2 Tensile test
11.3 Flattening retest
11.4 Drift expanding retest
11.5 Hardness test
11.6 Impact test
12 Marking
12.1 General
12.2 Marking sequence
12.3 Length
13 Coating and Protection
13.1 Coating
13.2 Protection
14 Documentation
14.1 General requirements
14.2 Certificate of quality
14.3 Reel documentation
14.4 Record retention
Appendix A (Normative) Tables
Appendix B (Normative) Supplementary Requirements
Appendix C (Informative) Transport Reels and Service Reels for Coiled Tubing
Appendix D (Normative) Requirements for Pipe-to-Pipe Girth Welding
Appendix E (Normative) Welding Procedure Qualification for Strip Girth Welds and Pipe-to-Pipe Girth Welds
Appendix F (Normative) Purchaser Inspection
Appendix G (Normative) Fatigue Test Method
Coiled Tubing
1 Scope
This document specifies the requirements for the ordering, raw materials and manufacturing process, material requirements, dimensions, mass per unit length, imperfections and end finishing, inspection and testing, non-destructive testing, retesting, marking, coating and protection, and documentation for carbon steel and low-alloy steel coiled tubing used in oil and gas wells (hereinafter referred to as "coiled tubing").
This document applies to the manufacture and inspection of coiled tubing.
2 Normative References
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 223.11 Iron, steel and alloy — Determination of chromium content — Visual titration or potentiometric titration method
GB/T 223.14 Methods for chemical analysis of iron, steel and alloy — The N-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content
GB/T 223.19 Methods for chemical analysis of iron, steel and alloy — The neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 223.23 Iron, steel and alloy — Determination of nickel content — The dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron, steel and alloy — Determination of molybdenum content — The thiocyanate spectrophotometric method
GB/T 223.40 Iron, steel and alloy — Determination of niobium content — The chlorosulfophenol S spectrophotometric method
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy — The gravimetric method for the determination of silicon content
GB/T 223.62 Methods for chemical analysis of iron, steel and alloy — The butyl acetate extraction photometric method for the determination of phosphorus content
GB/T 223.63 Iron, steel and alloy — Determination of manganese content — The sodium (potassium) periodate spectrophotometric method
GB/T 223.67 Iron, steel and alloy — Determination of sulfur content — Methylene blue spectrophotometric method
GB/T 223.81 Iron, steel and alloy — Determination of total aluminum and total boron content — Microwave digestion-inductively coupled plasma mass spectrometric method
GB/T 223.86 Iron, steel and alloy — Determination of total carbon content — Infrared absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials — Tensile testing — Part 1: Method of test at room temperature
GB/T 229 Metallic materials — Charpy pendulum impact test method
GB/T 230.1 Metallic materials — Rockwell hardness test — Part 1: Test method
GB/T 242 Metallic materials — Tube — Drift expanding test
GB/T 246 Metallic materials — Tube — Flattening test
GB/T 4336 Carbon and low-alloy steel — Determination of multi-element contents — Spark discharge atomic emission spectrometric method (routine method)
GB/T 4340.1 Metallic materials — Vickers hardness test — Part 1: Test method
GB/T 6394-2017 Determination of estimating the average grain size of metal
GB/T 7735 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections
GB/T 9445 Non-destructive testing — Qualification and certification of NDT personnel
GB/T 10561 Steel — Determination of content of nonmetallic inclusions — Micrographic method using standard diagrams
GB/T 12606 Automatic full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections
GB/T 15822.1 Non-destructive testing — Magnetic particle testing — Part 1: General principles
GB/T 18851.1 Non-destructive testing — Penetrant testing — Part 1: General principles
GB/T 20066 Steel and iron — Sampling and preparation of samples for the determination of chemical composition
GB/T 20123 Steel and iron — Determination of total carbon and sulfur content — Infrared absorption method after combustion in a high frequency induction furnace (routine method)
GB/T 20125 Low-alloy steel — Determination of multi-element contents — Inductively coupled plasma atomic emission spectrometric method
GB/T 20490 Non-destructive testing of steel tubes — Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections
GB/T 23901.1 Non-destructive testing — Image quality of radiographs — Part 1: Determination of the image quality value using wire-type image quality indicators
GB/T 23901.2 Non-destructive testing — Image quality of radiographs — Part 2: Determination of the image quality value using step/hole-type image quality indicators
GB/T 26951 Non-destructive testing of welds — Magnetic particle testing
GB/T 26952 Non-destructive testing of welds — Magnetic particle testing of welds — Acceptance levels
GB/T 26953 Non-destructive testing of welds — Penetrant testing of welds — Acceptance levels
GB/T 31032 Welding and acceptance standard for steel pipelines
GB/T 33362 Metallic materials — Conversion of hardness values
GB/T 34204 Coiled tubing
GB/T 42664 Non-destructive testing of steel tubes — Automated ultrasonic testing of welded steel tubes for the detection of longitudinal and/or transverse imperfections of the weld seam
JB/T 7902 Non-destructive testing — General specifications for linear image quality indicators
JJG 475 Verification Regulation of Electronic Universal Testing Machines
JJG 762 Verification Regulation of Extensometers
NB/T 47013.2 Non-destructive testing of pressure equipments — Part 2: Radiographic testing
NB/T 47013.3 Non-destructive testing of pressure equipments — Part 3: Ultrasonic testing
NB/T 47013.11 Non-destructive testing of pressure equipment — Part 11: Standard practice for digital radiography
SY/T 6763 Specification of purchaser's representative surveillance for petroleum tubular goods
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
as milled condition
The condition of coiled tubing that has completed all manufacturing processes but has not been spooled onto a reel.
3.2
coiled tubing (CT)
Finished steel pipe product manufactured by a continuous process, with a single length not less than 61 m, coiled on a reel, and delivered for use.
3.3
flash
Small amounts of metal extruded from the edges of the inner and outer weld beads during the high-frequency induction welding process, forming small fin-like or mesh-like metal protrusions that rise above the inner or outer surface of the pipe.
3.4
gouge
An elongated groove or cavity formed by the removal of metal using a mechanical device.
3.5
master coil
The original steel coil provided by the raw material manufacturer used to manufacture coiled tubing.
Note: It may be longitudinally slit to the required width for use in coiled tubing manufacturing.
