Some standard content:
ICS 75.180.10
Registration No.: 8209-2001
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY7r 65092H0
Kellys
Published on 2000-12-25
State Administration of Petroleum and Chemical Industry
Implemented on 2001-06-01
SY/T 6509-2000
Referenced Standards
Type and Code
4 Dimensions
5 Technical Requirements
6 Test Methods and Inspection Rules
7 Marking, Packaging
Appendix A (Appendix to the standard)
Appendix B (Appendix to the standard)
Appendix (Appendix to the standard)
Kale thread size.
Dimensions of circular tensile test specimens
Requirements for ultrasonic flaw detection
SY/T 6509--2000
The standard partially adopts the relevant technical contents of the American Petroleum Institute standard AIISpcc7 "Rotary Drilling Drill String Specification" (39th edition, December 1997):
Based on the American Petroleum Institute standard API Spec 7, this standard adds the following main contents to make the standard more complete and systematic
a) In terms of size specifications, the straightness deviation requirements for the entire length of the pipe body are added. b) In terms of technical requirements, the following contents are mainly added: [1] Requirements for manufacturing process:
2) Surface quality inspection is added:
3) Chemical composition requirements are added:
4) Material toughness regulations are added
Specific requirements are put forward for product marking and packaging. This standard is appendix A, Appendix B and Appendix C are all appendices of the standard. This standard is proposed by China National Petroleum Corporation: This standard is proposed by the White Oil Pipe Professional Standardization Committee. This standard is drafted by: China Shitan Natural Gas Group Petroleum Pipe Research Institute. The main drafters of this standard are An Bingyao and Fan Zhihai. 1 Scope
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Square Drill Pipe
Kellys
SY/T 6509--2000
This standard specifies the types, specifications, technical requirements, test methods, marking and packaging requirements of square drill pipes. This standard applies to the design, manufacture and acceptance of square drill pipes for oil, natural gas and other drilling projects. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using this standard should discuss the possibility of new versions of the following standards: GB/T 222 1984
GB/T 223.2 1981
G3/T 223.3—1988
GB/T 228—1987
GB/ 229---J994
(G3/ 1 231—1584
G3/r9253.11999
SY/T 5144—1997
$Y7T 52902000
SY/T 5448--92
[2000 3 Types and codes
Sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished products Determination of sulfur content in steel and alloys
Chemical analysis method for steel and alloys Determination of phosphorus content by diantipyryl methane phosphate gravimetric method Metal tensile test method
Charpy impact test method for metals (S0148—1983 Brinell hardness test method for metals
Threads of oil drill pipe joints
Stone drill pipe joints
Non-destructive testing method for oil well pipes Magnetic particle detection of drill thread 3.1 Drill pipe can be withdrawn and divided into the following two forms: Square F: Square drill pipe with an inner cross section of the pipe body and a square outside, code FC S, Hexagonal Kelly: The cross section of the tube body is circular inside and square outside, codenamed F. 3.2 The structure of the Kelly shall comply with the provisions of Figure 1 and Figure 2. 1 Basic size and deviation 4.1.1 The size specifications of the Kelly shall comply with the provisions of Table 1 and Table 2. 4.1.2 The size deviation of the Kelly shall comply with the provisions of Table 3 and Table 4. 4.1.3 The straightness deviation of the driving part (1-m) of the Kelly shall not be greater than the length of the driving part multiplied by 0.52mm/m1: 4.2 Thread 4.2.1 The thread tooth type shall comply with the provisions of the fourth emperor in (JB/T9253.1-1999) 4.2.2 The thread size shall comply with the provisions of Appendix A (Appendix to the standard). Approved by the State Administration of Petroleum and Chemical Industry on December 25, 2000, and implemented in 2001
45°±2°
2 Upper end joint
1 Left-hand internal thread joint
30°±2°
2 Upper end joint
Left-hand internal thread joint
SY/T6509—2000
76.2°±12.7°
50.8°±12.7°
The shape of the correction angle is selected by the manufacturer
Figure 1 Square Kelly Structure
76.2±12.7°
50.8°±12.7°
45°±2°
Lower Joint
30°±2%
Right-Hand External Thread Joint
Lower End JointRight-Hand External Thread Joint
Angle Shape Selected by Manufacturer
Hexagonal Kelly Structure
4.2.3 Thread Size Deviation Should Comply with the Regulations in 5.2 of GB/T9253.1-1999. 4.2.4 Thread Close Distance Should Comply with the Regulations in SY/T5290. 2000
SY/T 6509
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SY/T6509—2000
Chamfer diameter D
98190m
198190m
Thread specifications and types
One angle diameter
(cut)
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Minimum wall thickness
Eccentric hole maximum
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SY/T6509—
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5 Technical requirements
5.1 Manufacturing process
SY/T 6509-2000
5.1. Kelly bars shall be made of alloy steel hot-rolled thick-walled tubes or forged and machined. 5.1.2 Kelly bars shall be subjected to full cross-section normalizing and quenching and tempering heat treatment before T-threading the tube body. 5.1.3 Kelly bar threads and internal and external thread shoulder surfaces shall be plated or phosphated, preferably copper plating, which must be carried out after the close distance inspection is qualified.
5.2 Surface quality
5.2.1. The surface of the pipe body shall not have defects such as cracks, folds, pits and scars, and the inner surface shall not have shoulders and spiral grooves: if there are defects, they shall be repaired and eliminated, and the grinding area and the surface of the square drill pipe shall be in a circular arc transition. The remaining thickness after repair shall not be less than 92% of the specified thickness: the surface of the square drill pipe is not allowed to be repaired and welded.
5,2,2 The roughness of the internal and external thread shoulders and the thread working surface shall comply with the provisions of Table 5. No defects such as burrs, cracks, scars, ripples, cracks, etc. that damage the sealing of the connection are allowed. Table 5 Surface roughness
Internal and external thread shoulders
5.3 Chemical composition
Thread working surface
Thread tooth surface
Square drill pipes shall be made of steel types recognized by both the supply and demand parties: the sulfur and phosphorus content in the chemical composition shall not exceed 0.035% 5.4 Mechanical properties
The mechanical energy of the drill pipe shall comply with the provisions of Table 6. Table 6 Mechanical properties of Kelly
External range of lower end joint
85.7 -- 174.6
6 Test methods and inspection rules
6.1 Inspection rules
Service strength 4 core, 21 Tensile strength al.M'
Elongation
Surface hardness Composite impact absorption H3
During manufacturing, samples are taken from the two ends of the heat-treated rough rod for tensile, impact and hardness tests. The chemical composition is analyzed according to the steelmaking furnace number.
6.2 Chemical composition analysis
The chemical composition of the steel used for square drill rods shall be prepared according to the provisions of (3/T222 and analyzed according to the provisions of GB/T223.2 and GB/T223.3.
6.3 Mechanical properties test
6.3.1 Tensile and impact test samples are taken from the lower end joint and cut longitudinally: the center of the sample shall be ?5mm away from the surface of the equal body or at the center line of the wall. The smaller one is selected.
SY/T 65092000
(.3.2 The tensile test shall be conducted on cylindrical specimens, the specimen size shall comply with the provisions of Appendix B (Appendix to the standard). The test method shall be conducted in accordance with the provisions of GB/T228. The service strength is the tensile strength of the specimen when the residual elongation is 0.2% within the gauge length. 6.3.3 The impact test shall be conducted on Charpy V-notch specimens, the specimen size is 10mm×10mm×55mm, the test temperature is 20℃+5t, and the test method shall be conducted in accordance with the provisions of (B/1229): (.3.4 The hardness test shall be conducted on the outer surface of the upper end. The test method shall be conducted in accordance with (G13 /T231 provisions, 6.4 Driving part size measurement
All kelly driving parts should use the sleeve gauge in accordance with Figure 3 and Table 7 to measure the dimensional accuracy. @
Hexagonal kelly sleeve inside view
Figure 3 Kelly sleeve gauge
Table 7 Kelly sleeve gauge
Minimum length of gauge
All specifications of D. code tolerance are +0.13mm
The angle deviation between the adjacent sides is ±0°306.5 Diameter inspection
Width across the sides
Square kelly sleeve gauge
mm (in)
Maximum radius
All square drill holes should be inspected for a long diameter. The diameter of the diameter gauge is equal to the nominal inner diameter minus 3.2umn, and the deviation is: \ Its minimum length is 3050umg
6.6 Straightness measurement method
Measure the maximum deviation between the straight line drawn at both ends of any edge of the square drill pipe body and the square drill surface. 6.7 Wall thickness inspection
The clearance inspection is carried out by an ultrasonic thickness gauge at any section within the length range. 6.8 Thread inspection
The thread pitch, taper, tightness and inspection methods should be carried out in accordance with the provisions of SY/T5290. 6.9 Non-destructive inspection
SY/T6509-2000
6.9.1 The threaded part of the square drill joint should be inspected by magnetic particle inspection, and the inspection method should be carried out in accordance with the provisions of SY/T5448. 6.9.2 The joints of the square drill rod shall be inspected by ultrasonic testing, and the inspection method shall be carried out in accordance with the provisions of SY/T5144. 6.9.3 The whole length of the driving part of the square drill rod shall be inspected by ultrasonic testing. The requirements for ultrasonic testing are shown in Appendix C (Appendix of the standard). 7 Marking and packaging
7.1 A flat groove with a depth of 3mm and a length of 60mm is machined longitudinally on the outer surface of the upper joint, and the manufacturer's mark, production number (including the year and month of production), specifications and joint type are printed in steel letters. 7.2 A circular groove with a depth of 3mm and Φ30mm is machined on the outer surface of the lower joint, and the joint type is printed in steel letters. 7.3 Each square drill rod shall be accompanied by two copies of a quality assurance certificate when leaving the factory, and its contents include: contract number, production number, steelmaking furnace number, batch number, specifications, length, weight, chemical composition and mechanical properties, etc. 7.4 The threaded part and shoulder surface of the square drill rod must be coated with neutral protective oil, and soft washers and steel protectors must be worn. 7.5 The outer surface of the Kelly pipe should be painted with green or blue anti-rust paint. 7.6 Kelly should be packaged when transported to prevent collision and bending. 8
SY/T6509-2000
Appendix A
(Standard Appendix)
Size of Kelly Thread
Size of Kelly Thread should comply with the requirements of Figure A1 and Table A1. Lpe
1×45°
Figure A1 Kelly thread size
Kelly thread size
External thread
Cone large
end diameter
117.500122.784
External thread
Cylindrical root
end diameter
External thread
Cone small
end diameter
External thread
Total length
Internal thread
Minimum effective
Thread
Internal thread
Cone length
Internal thread
Expanded cone hole
Big end diameter5Diameter inspection
Across-side width
Square drill bit gauge
mm (in)
Maximum corner radius
All square drill holes should be inspected for a long diameter. The diameter of the diameter gauge is equal to the nominal inner diameter minus 3.2nm, and the deviation is:\The minimum length is 3050umg
6.6 Straightness measurement method
Measure the maximum deviation between the straight line drawn at both ends of any edge of the square drill pipe body and the square drill surface 6.7 Wall thickness inspection
The net inspection is carried out by using an ultrasonic thickness gauge at any section within the food length range. 6.8 Thread inspection
The inspection method of thread pitch, taper and tightness shall be carried out in accordance with the provisions of SY/T5290. 6.9 Nondestructive inspection
SY/T6509—2000
6.9.1 The threaded part of the square drill pipe joint shall be inspected by magnetic particle inspection in accordance with the provisions of SY/T5448. 6.9.2 The square drill pipe joint shall be inspected by ultrasonic inspection in accordance with the provisions of SY/T5144. 6.9.3 The whole length of the driving part of the square drill pipe shall be inspected by ultrasonic inspection. The requirements for ultrasonic inspection are shown in Appendix C (Appendix of the standard). 7 Marking and packaging
7.1 A flat groove with a depth of 3mm and a length of 60mm shall be machined longitudinally on the outer surface of the upper joint, and the manufacturer's mark, production number (including the year and month of manufacture), specifications and joint type shall be printed in steel letters. 7.2 A circular groove with a depth of 3mm and Φ30mm is machined on the outer surface of the lower joint, and the joint type is printed in steel letters. 7.3 Each square drill rod shall be accompanied by two copies of a quality assurance certificate when leaving the factory, and the contents include: contract number, production number, steelmaking furnace number, batch number, specifications, length, weight, chemical composition and mechanical properties, etc. 7.4 The threaded part and shoulder surface of the square drill rod must be coated with neutral protective oil, and soft washers and steel protectors must be worn. 7.5 The outer surface of the square drill rod tube body shall be coated with green or blue anti-rust paint. 7.6 The square drill rod shall be packaged as necessary during transportation to prevent collision and bending. 8
SY/T6509-2000
Appendix A
(Standard Appendix)
Square drill rod thread size
Square drill rod thread size shall comply with the provisions of Figure A1 and Table A1. Lpe
1×45°
Figure A1 Kelly thread size
Kelly thread size
External thread
Cone large
end diameter
117.500122.784
External thread
Cylindrical root
end diameter
External thread
Cone small
end diameter
External thread
Total length
Internal thread
Minimum effective
Thread
Internal thread
Cone length
Internal thread
Expanded cone hole
Big end diameter5Diameter inspection
Across-side width
Square drill bit gauge
mm (in)
Maximum corner radius
All square drill holes should be inspected for a long diameter. The diameter of the diameter gauge is equal to the nominal inner diameter minus 3.2nm, and the deviation is:\The minimum length is 3050umg
6.6 Straightness measurement method
Measure the maximum deviation between the straight line drawn at both ends of any edge of the square drill pipe body and the square drill surface 6.7 Wall thickness inspection
The net inspection is carried out by using an ultrasonic thickness gauge at any section within the food length range. 6.8 Thread inspection
The inspection method of thread pitch, taper and tightness shall be carried out in accordance with the provisions of SY/T5290. 6.9 Nondestructive inspection
SY/T6509—2000
6.9.1 The threaded part of the square drill pipe joint shall be inspected by magnetic particle inspection in accordance with the provisions of SY/T5448. 6.9.2 The square drill pipe joint shall be inspected by ultrasonic inspection in accordance with the provisions of SY/T5144. 6.9.3 The whole length of the driving part of the square drill pipe shall be inspected by ultrasonic inspection. The requirements for ultrasonic inspection are shown in Appendix C (Appendix of the standard). 7 Marking and packaging
7.1 A flat groove with a depth of 3mm and a length of 60mm shall be machined longitudinally on the outer surface of the upper joint, and the manufacturer's mark, production number (including the year and month of manufacture), specifications and joint type shall be printed in steel letters. 7.2 A circular groove with a depth of 3mm and Φ30mm is machined on the outer surface of the lower joint, and the joint type is printed in steel letters. 7.3 Each square drill rod shall be accompanied by two copies of a quality assurance certificate when leaving the factory, and the contents include: contract number, production number, steelmaking furnace number, batch number, specifications, length, weight, chemical composition and mechanical properties, etc. 7.4 The threaded part and shoulder surface of the square drill rod must be coated with neutral protective oil, and soft washers and steel protectors must be worn. 7.5 The outer surface of the square drill rod tube body shall be coated with green or blue anti-rust paint. 7.6 The square drill rod shall be packaged as necessary during transportation to prevent collision and bending. 8
SY/T6509-2000
Appendix A
(Standard Appendix)
Square drill rod thread size
Square drill rod thread size shall comply with the provisions of Figure A1 and Table A1. Lpe
1×45°
Figure A1 Kelly thread size
Kelly thread size
External thread
Cone large
end diameter
117.500122.784
External threadwww.bzxz.net
Cylindrical root
end diameter
External thread
Cone small
end diameter
External thread
Total length
Internal thread
Minimum effective
Thread
Internal thread
Cone length
Internal thread
Expanded cone hole
Big end diameter
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