This standard specifies the product classification, specifications, dimensions, technical requirements, test methods, inspection rules, marking and packaging of oil drill pipe joints (hereinafter referred to as joints). This standard applies to the design, manufacture and quality inspection of drill pipe body butt weld joints for oil and natural gas drilling operations. SY/T 5290-2000 Oil Drill Pipe JointsSY/T5290-2000 Standard download decompression password: www.bzxz.net

ICS 75.180.10
Registration No.: 6802—2000
Petroleum and natural gas industry standard of the People's Republic of ChinaSY/T 52902000
Oil drill pipe joints
Tool joints for drill pipe for oil or atural gas well2000-03-14 Issued
State Administration of Petroleum and Chemical Industry
2000-10-01 Implementation
SY/T5290—2000
Cited Standards
3 Symbols
4 Product Classification
5 Technical Requirements
Test Methods
7 Inspection Rules
8 Marking and Packaging
Appendix A (Appendix to the Standard)
Appendix B (Appendix to the Standard)
Appendix C (Appendix to the Standard)
Appendix D [Appendix to the Standard] 【Record】
Appendix E (Appendix to the standard)
Drill pipe joints to be replaced
Testing method for close distance of joint threads
Recommended practice for measuring connecting threads of new drill pipe jointsRelationship between thread gauge and threads of petroleum drill pipe jointsRecommended practice for welding wear-resistant strips
SY/T5290--2000
This standard is a revision of SY5290-91 "Right-type oil drill pipe joints" based on American Petroleum Institute standard AP1Srer:7 "Specifications for Rotary Drilling Drill String Components" (39th edition) and the actual production situation of drill pipe joints in my country at present. The main modifications of SY529091 in this standard are as follows: the reference standards have deleted the abolished GB2106 "Metal Charpy (V-notch) impact test method", JB741 "Technical conditions for steel welded pressure vessels (1) magnetic particle inspection", etc., and added GB/T229-1994 "Metal Charpy notch impact test method", GB/T13384-1992 "General technical conditions for packaging of electromechanical products", JB4730-1994 "Non-destructive testing of pressure vessels" and added Chapter 3 "Symbols".
The types and specifications of joints (i.e. Table 1 and Table A1) have been adjusted according to API standards, and the nominal outer diameter, nominal weight and steel grade of drill pipe in the original standard have been deleted from the joint code, so that the joint code in my country is consistent with the API standard. The technical requirements have deleted the content such as "manufactured according to drawings and documents". The requirements for non-destructive testing have been added to the surface quality. The requirements for butt joint threads are changed to directly refer to GR/r9253.1--1999 "Oil Drill Pipe Joint Threads". This standard was first issued in 1984 as GH4775-:84, and was first revised in July 1991 as SY5290-91. This is the second revision.
This standard will replace SY5290-91 from the date of implementation. Appendix A, Appendix B, Appendix C, Appendix L, and Appendix E of this standard are all appendices of the standard. This standard was proposed by the National Petroleum Drilling Equipment and Tools Standardization Technical Committee and was drafted by Baoji Petroleum Machinery Factory. The participating drafting units of this standard are Shishan Pipe Research Institute and Shanxi Fenglei Machinery Factory. This standard is mainly drafted by Dexiang, Ma Zhonghai, Yang Xi, Lin Zhimin, Ma Fubao IV
1 Scope
Petroleum and natural gas industry standard of the People's Republic of China Petroleum drill pipe joints
Tonl joints for drill pipe for oil or natural gas wellSY/T5290—2000
Replaces SY5290—9]
This standard specifies the product classification, specification and size, technical requirements, test methods, inspection rules, marking and packaging of petroleum drill pipe joints (hereinafter referred to as joints).
This standard applies to the design, manufacture and quality inspection of drill pipe body butt welding joints for oil and natural gas drilling operations. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GBT222-1984 Sampling method for chemical analysis of steel and allowable deviation of chemical composition of products GB/T223.2-1981 Determination of sulfur content in steel and alloys GB/T223.3-1988 Chemical analysis methods for steel and alloys - Determination of phosphorus content by antipyryl methane phosphomolybdic acid gravimetric method GR/T228-1987 Metal tensile testing method
GB/T 229--1994
GB/T 231-1984
Metal Charpy notched impact test method
Metal Brinell hardness test method
CB/T4749-1993 Thread gauge for petroleum drill pipe joints GB/T 6397-1986
Metal tensile test specimens
GB/I'9253.1-1999 Thread gauge for petroleum drill pipe joints GB/T 13384—1992
General technical conditions for packaging of electromechanical products
JB/T 47301994
Non-destructive testing of pressure vessels
3 Symbols
D--Outer diameter of internal and external threaded joints;
d--Inner diameter of internal and external threaded joints;
D--Chamfer diameter of shoulder of internal and external threaded joints;Lp
Length of external threaded joint body:
Length of the buckling part of the lifting clamp of the external threaded joint (large clamp space):Lr--Length of the buckling part of the lifting clamp of the internal threaded joint (large clamp space):ICombined length of internal and external threaded joints;
--Neck diameter of the lifting card of the external threaded joint (welding neck diameter);Neck diameter of the lifting card of the tapered shoulder of the internal threaded joint (welding neck diameter):DsENeck diameter of the lifting card of the right-angle shoulder of the internal threaded joint (welding neck diameter):L PE
Outer thread joint furnace neck length;
Inner thread joint cone expansion neck length:
Inner thread joint right angle welding neck length:
Approved by the State Bureau of Petroleum and Chemical Industry on March 14, 2000 and implemented on October 1, 2000
NC-Digital thread code:
IF—Internal flat thread code:
FH—Through-eye thread code:
E-—F75 steel grade code;
-X95 steel grade code;
—G105 steel grade code:
S—-S135 steel grade code:
EU——-External thickened drill pipe code:
IU—Internal thickened drill pipe code:
IEU-Internal and external thickened drill pipe codes.
4 Product classification
4.1 Classification and specifications
SY/T 5290--2000
4.1.! According to the connection thread, the joint can be divided into two types: digital type, internal flat type, and through-eye type. Each thread can be divided into left-handed and left-handed. 4.1.2 The specifications and dimensions of the joint shall comply with the provisions of Figure 1 and Table 1. 4.2 Structural dimensions
The structural dimensions of the joint are shown in Figure 1. The hanging card buckle of the internal thread joint can be made into a tapered shoulder or a right angle according to the hanging card form. 4.2.11
Taiwan,
The welding neck length of the external thread and internal thread joint is LE=70mm±6mm, Ls (or LTE)=&Un, which can also be determined by negotiation between the supply and demand parties.
4.2.3 The weld neck diameters DPE, Dt and Dse of the joints listed in Table 1 and the inner diameters α of the internal and external threaded joints are all the dimensions of the joints after welding and machining. The dimensions before welding can be determined by negotiation between the supplier and the buyer. 4.2.4 The outer diameters D and inner diameters d of the internal and external threaded joints listed in Table 1 should make the torsional strength ratio of the joint to the drill pipe about 0.8. When the drill string is a composite drill string or a tower drill string designed based on the tensile strength requirement rather than the torsional strength requirement, the outer diameters [ ] and inner diameters d not in Table 1 can be used. The inner diameter α in Table 1 is not applicable to the internal threaded joint, and the inner diameter α of the internal threaded joint is selected by the manufacturer. 4.2.5 The space dimensions of the large tongs Ip and LB cannot be less than the values ​​specified in Table 1. When this value increases, the length of the external threaded joint body Lp and the combined length of the internal and external threaded joints L also increase accordingly. 4.2.6 The outer surface of the internal threaded joint can be welded with a wear-resistant belt. Ln
R38.135\±2
Joint thread
Figure 1 Oil drill pipe joint
4.3 Joint code
Joint code should be expressed according to the joint thread code of (B/9253.1. When ordering joints, the size, type, nominal quality and steel grade of the drill pipe should be indicated.
5 Technical requirements
5.1 The joint should comply with the provisions of Table 1.For the sizes of joints to be phased out, see Appendix A (Standard Appendix) Size of welded wear-resistant strip 2
SY/T 52902000
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SY/T5290—2000
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See Appendix F (Standard Appendix)
5.2 The connection thread of the joint shall comply with the provisions of GR/T9253.1. The relationship between the joint thread and the thread gauge shall be in accordance with Appendix T (Standard Appendix).
After the head thread passes the close distance inspection, it shall be subjected to copper plating or phosphating and other surface treatments. 5.3
The joint shall be subjected to non-destructive testing. The defects of the thread and the shoulder surface shall comply with the T grade requirements in JBT4730-1994. 5.4
The roughness of the thread surface and the shoulder surface of the joint shall be R, 3.2um. 5.5
5.6 The hardness test shall be carried out on the surface of the middle thickness of the threaded part of the internal threaded joint 32mm from the end face, and shall comply with the provisions of Table 2. The surface hardness of the external threaded joint is 285~341HB, and the surface hardness of the internal threaded joint is 285~321IB. 5.7
The joint material shall be alloy steel, and the alkali and phosphorus content of the steel shall not exceed 0.030%. 5.8
The mechanical properties of the joint shall comply with the provisions of Table 2. Table 2 Mechanical properties of joints
Tensile strength
Yield strength 00.2
Elongation
Charpy impact absorption energy AkY
Joint hardness
Note: Charpy impact energy refers to the requirement at a test temperature of -20°C. The result of the impact test is the average value of three specimens, but the lowest value of a single specimen shall not be less than 47].
6 Test method
6.1 Chemical analysis
The specimens for chemical analysis of joints shall be sampled according to the sample sampling method of GBT222, among which the sulfur content analysis shall be carried out according to GB/T223.2, and the phosphorus content analysis shall be carried out according to the relevant methods of GBT223.3. 6.2 Mechanical properties
6.2.1 The sampling positions of the tensile and impact specimens of the joints shall be according to Figures 2 (a) and 2 (b). The entire gauge length of the tensile test specimen should be at the conical part of the external threaded joint, with its center position at 32mm from the shoulder surface, and the test specimen transmission line parallel to the thread axis. The test specimen gauge length is 4 times the diameter, and the rest should comply with the provisions of GB/T6397. 6.2.2 The tensile test should be carried out according to the test method of GB/T228. 6.2.3 For external threaded joints, when a tensile test specimen with a diameter of 5ml or more cannot be obtained according to the position specified in 6.2.1, the hardness value test method can be used instead. The position of the hardness test should be as shown in Figure 2 (c). The hardness test is carried out at the middle wall thickness from the bottom of the white thread teeth according to the test method specified in GH/T231. The impact test in 6.2.4 shall be carried out according to the test method specified in GI3/T229. The full-size specimen shall be used as much as possible for the test. When the 10mm×10mm standard specimen cannot be obtained at the position specified in 6.2.1, a 10mm×7.5mm or 10mm×5.0mm small-size specimen may be used. The minimum impact absorption energy requirements for small-size specimens are specified in Table 3. The arithmetic mean of the results of the three specimens is taken as the result of the impact test. One specimen is allowed to be lower than the specified value, but it shall not be less than 83% of the specified value, otherwise this item is unqualified. Table 3 Impact absorption energy requirements for small-size specimens
Specimen specifications
mm× Ii
Table 2 Specified Sharp River Impact Absorption Energy Percentage 100
6.3 Thread measurement
(a) Tensile specimen junk sampling position
SY/T 5290—2000
(c) Hardness test sample glass sample position
Figure 2 Test sample sampling position
6.3.1 The gauge used for testing the joint thread shall comply with the provisions of (R/T4749. (b) Sampling position of the market test sample
6.3.2 For the measurement of the close distance, see Appendix 3 (Appendix to the standard). For the measurement of the taper and pitch, see Appendix C (Appendix to the standard). 6.4 Nondestructive testing
Nondestructive testing shall be carried out in accordance with the provisions of JR/T4730. 6.5 General Measurement of size and roughness
General size of joints is measured by conventional measuring tools. Roughness is measured by sample block comparison method. When disputes occur, surface roughness measuring instrument shall be used for arbitration.
7 Inspection rules
.1 Each joint thread must be tested for close distance before leaving the factory. 7.2 Each joint must be non-destructively tested before leaving the factory and shall comply with the provisions of 5.4. 7.3 In a stable processing process (equipment, tool, process, joint specifications remain unchanged), the single parameters of the thread should be tested regularly. If the current test finds that a single parameter is unqualified, the joints produced between the previous test and the current test should be tested piece by piece, and those that fail should be scrapped or repaired. When the equipment, tools, processes, and joint specifications change, the single parameters must also be tested. 7.4 Each joint should be hardness tested (non-destructive) and should comply with the provisions of 5.7. 7.5 When the continuous production of internal threaded joints exceeds 200 pieces, a single hardness test should be carried out on the section 32mm away from the end face of the middle wall thickness of the thread, and it should comply with the provisions of Table 2. ||tt ||7.6 For chemical analysis, the sampling of products shall be based on the same smelting furnace as a batch or at least 200 joints from the same smelting furnace as a batch. Two joints shall be sampled from each batch and one sample shall be taken from each batch for inspection and analysis. If the chemical composition of both samples does not meet the requirements of 5.2, the batch of products shall be scrapped; if only one sample fails, another 20 joints shall be taken from the batch for retesting. If the retest results show that each of the two retested samples meets the requirements of 5.8, the batch of products shall be considered qualified except for the first unqualified one. 7.7 For mechanical property inspection, for joints that are heat treated in batches, less than or equal to 200 joints of different specifications from the same smelting furnace shall be taken as a batch; for joints that are continuously heat treated, the number of joints in the manufacturing process shall be taken as a batch, and all joints in each batch shall be heat treated under the sample conditions. One external threaded joint is selected from each batch for one tensile test and one impact test. If the test results do not meet the requirements of Table 2, two more joints from the same batch shall be selected for re-test: if both meet the requirements, then except for the first unqualified one, the rest are qualified; if any item of any joint is unqualified, the batch of products shall be scrapped. 8 Marking and packaging
8.1 Marking
8.1.1 Mill the marking groove in the space of the joint clamp according to the requirements of Figure 3 or other appropriate structures and print the following marks: a) Manufacturing code or trademark;
b) Implementation standard number;
c) Joint code:
a) Steel grade code.
Drill pipe joint code
Rao system increase
Drill pipe steel grade code
(a) Standard quality strength drill pipe
Drill pipe joint code
System summary
Drill car-steel code
(α) Heavily weighted B-grade drill pipe
: The groove depth is 6.35mm (1/4in) for drill pipes with specifications greater than 5/a1n and 4.76m (3/16in) for drill pipes with specifications less than or equal to 5in.
Drill pipe joint code
Milling grid
Drill pipe steel grade code
(b) Strength drill pipe with added weight
Drill pipe lanthanum grade code
Figure 3 Milling and grooving methods for joint identification
8.1.2 The joint without mark precision should be printed with the mark required by 8.1.1 on the small end face of the external thread and the stop of the internal thread. 8.1.3 Two 51n×1mm (width×depth) identification grooves should be added to the middle position of the large clamp space for left-hand thread joints. 8.1.4 The year, month, batch number and other information of the joint can be written on the outer surface of the joint by paint or stamping. Code
8.2 Packaging
8.2.1 Internal and external threaded connectors should be individually packaged with special thread protectors. The thread protectors should protect the shoulder surface and the small external thread surface. Single packaged connectors can be packed in boxes or other ways. All kinds of packaging should meet the technical requirements of GB/T13.384. 8.2.2 The following items should be marked on the outside of the packaging box: a) Receiving unit and address; b) Shipping unit and address; c) Connector code and quantity; d) Quality. 8.2.3 Random documents should be packed in plastic bags and then packed in the packaging box. The outside of the box should be marked: "This box contains random documents". Random documents should include: product quality certificate h) Packing list.
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