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SY/T 5324-2013 PDF in English

SY/T 5324-2013 (SY/T5324-2013, SYT 5324-2013, SYT5324-2013)
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SY/T 5324-2013: PDF in English (SYT 5324-2013)

SY/T 5324-2013
ICS 75.180.10
E 92
Record No.. 43183-2014
Replacing SY/T 5324-1994
Pre-Stress Insulated Tubing
Issued by. National Energy Administration
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Table of Contents
Foreword ... 4
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Product Classification ... 6
4.1 Product level ... 6
4.2 Product structural dimension ... 6
4.3 Product code ... 7
5 Technical Requirements ... 7
5.1 Requirements for working conditions... 7
5.2 Product insulating performance level... 8
5.3 Material requirements ... 8
5.4 Prestressed process requirements ... 8
5.5 Processing requirements ... 8
5.6 Tensile load ... 9
5.7 Insulating layer ... 9
5.8 Service life of pre-stress insulated tubing ... 9
5.9 Product flatness ... 9
6 Test Methods ... 9
6.1 Mechanical property inspection ... 9
6.2 Insulating property inspection ... 10
6.3 Weld seam inspection ... 10
6.4 Thread inspection ... 10
6.5 Drift diameter inspection ... 10
7 Inspection Rules ... 11
7.1 Acceptance inspection ... 11
7.2 Type inspection ... 11
8 Mark, Package, Transportation and Storage ... 12
8.1 Mark ... 12
8.2 Package ... 12
8.3 Transportation ... 12
8.4 Storage ... 12
9 Health, Safety, Environmental Control Requirements ... 13
Appendix A (Informative) Calculation of Apparent Thermal Conductivity ... 14
This Standard was drafted as per the rules specified in GB/T 1.1-2009 Directives for
Standardization – Part 1. Structure and Drafting of Standards.
This Standard replaced SY/T 5324-1994 Prestressed Insulated Tubing; compared with
SY/T 5324-1994, this Standard has the major technical changes as follows besides
the editorial modifications.
--- Modified the product code (see 4.3 of this Edition; 4.3 of Edition 1994);
--- Deleted the specific numerical requirements for anti-repulsion and anti-extrusion
(see 5.1 of Edition 1994);
--- Modified the requirements for working conditions (see 5.1 of this Edition; 5.1 of
Edition 1994);
--- Modified the basis for determining the thermal insulation life (see 5.8 of this
Edition; 5.8 of Edition 1994);
--- Modified the technical requirements for product flatness (see 5.9 of this Edition;
5.9 of Edition 1994);
--- Modified the test program for apparent thermal conductivity (see 6.2.2 of this
Edition; 6.2.2 of Edition 1994);
--- Modified the size requirements for drift diameter gauge (see 6.5 of this Edition;
6.3 of Edition 1994);
--- Modified the requirements for product mark (see 8.1 of this Edition; 8.1 of Edition
--- Added the health, safety, environmental control requirements (see Clause 9).
Please note that some contents of this document may involve patents. The issuing
authority of this document doesn’t assume the responsibility to identify these patents.
This Standard was proposed by and under the jurisdiction of Technical Committee for
Standardization of Oil Tube Profession.
Drafting organizations of this Standard. Oil Production Research Institute of SINOPEC
Shengli Oilfield Company, Shengli Oilfield Fleet Petroleum Equipment Co., Ltd., and
China University of Petroleum (East China).
Chief drafting staffs of this Standard. Di Yong, Luan Zhiyong, Shen Jing, Zhao Yanru,
Xie Jiawei, Li Shulan, and Wang Jianmin.
Pre-Stress Insulated Tubing
1 Scope
This Standard specifies the product classification, technical requirements, test
methods, inspection rules, and mark, package, transportation, storage, and health,
safety, environmental control requirements for the pre-stress insulated tubing for
oilfield heat injection carrier.
The pre-stress insulated tubing uses viscous oil well to inject steam and produce. This
Standard is applicable to the production, inspection and acceptance rules of the pre-
stressed insulated tubing for steam injection.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 3198 Aluminum and Aluminum-Alloy Foil
GB/T 3323 Methods for Radiographic Inspection and Classification of
Radiographs for Fusion Welded Butt Joints in Steel
GB/T 4338 Metallic Materials – Tensile Testing at Elevated Temperature
GB/T 5117 Covered Electrodes for Manual Metal Arc Welding of Non-Alloy and
Fine Grain Steels
GB/T 5118 Low Alloy Steel Covered Electrodes
GB/T 8110 Welding Electrodes and Rods for Gas Shielding Arc Welding of Carbon
and Low Alloy Steel
GB/T 9253.2 Petroleum and Natural Gas Industries – Threading, Gauging, and
Thread Inspection of Casing, Tubing and Line Pipe Threads
GB/T 19830 Petroleum and Natural Gas Industries - Steel Pipes for Use as Casing
or Tubing for Wells
NB/T 47014 Welding Procedure Qualification for Pressure Equipment
less than 400°C.
5.2 Product insulating performance level
The product insulating performance level shall conform to the provisions of Table 1.
5.3 Material requirements
5.3.1 The tubing shall conform to the provisions of GB/T 19830. For the benefit of
sand washing and vacuum pumping, the surfaces of inner and outer tubes are required
to be exempted from rust.
5.3.2 The insulating material of aluminum foil shall meet the requirements of GB/T
5.3.3 The welding rods for welding the inner and outer tubes shall meet the
requirements of GB/T 5117, GB/T 5118 and GB/T 8110.
5.4 Prestressed process requirements
5.4.1 According to the design requirements, separately calculate each tube’s
theoretical pre-elongation; the allowable deviation between the actual pre-elongation
and theoretical pre-elongation is ±0.5mm.
5.4.2 The heating method shall be adopted for the prestressed treatment process
rather than the mechanical method, the latter may damage the inner tube.
5.5 Processing requirements
5.5.1 After treatment, the outer surface of inner tube and inner surface of outer tube
shall be exempt from the rust and dirt; all can see is metal color; weld after drying and
5.5.2 Perform welding process evaluation against the welding steel, welding material,
welding method and welding process; the process evaluation shall be performed as
per the provisions of NB/T 47014; and prepare the welding process procedures.
5.5.3 The width and height of weld seams shall be consistent; their appearance shall
be uniform and full; smoothly transit to the base metal; the spatter around the weld
seam shall be cleaned up.
5.5.4 The processing and inspection of tube body and coupling thread shall meet the
requirements of GB/T 9253.2.
400°C. The test shall be performed as per the requirements of GB/T 4338.
6.1.2 The parameters of normal-temperature tensile load test, normal-temperature
anti-repulsion test, normal-temperature anti-extrusion hydraulic test shall meet the
requirements of actual working conditions of the steam injection well.
6.2 Insulating property inspection
6.2.1 Inspection device
The measurement of insulating property of insulated tubing shall adopt steady-state
and heating method. The electric heating method is recommended. The inspection
device shall have the self-control function against the temperature and heating power;
in order to guarantee the measurement accuracy, it can be equipped with automatic
acquiring and processing microcomputer.
6.2.2 Inspection procedures Place the heating device into the inner tube cavity on the end of the insulated
tubing with suction hole. Install the temperature-measuring device for the outer wall of outer tube. Connect the heating device and temperature-measuring device with the
apparent thermal conductivity testing device. Start the heating device; heat till the inner wall temperature of inner tube
reaches 350°C; keep the steady-state. The product apparent thermal conductivity is subject to the value calculated
under the conditions of inner wall temperature 350°C, ambient temperature of room
temperature; the calculation formula can refer to Appendix A.
6.3 Weld seam inspection
The two ends and the weld seam of suction hole shall be performed non-destructive
inspection; meet the requirements of GB/T 3323; no less than Class-II is qualified.
6.4 Thread inspection
The product connecting thread shall use the corresponding t...
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.