Some standard content:
ICS 75.180.10
Registration No.: 10425-2002
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY /T 52---2002
Replaces SY5200-93
Drill-stem subs
2002-05-28 Issued
National Economic and Trade Commission
2002-08-01 Implementation
Normative references
3 Types and codes
4 Dimensions and specifications
5 Technical requirements
G Test methods and inspection rules
7 Marking Packaging and transportation
Appendix A (Normative Appendix) Dimensions and specifications of subs for use with drill pipe joints that are about to be phased outAppendix B (Informative Appendix) Test blocks recommended for ultrasonic flaw detection: SY/T 5200--2002
SY/T 5200—2002
This standard refers to the relevant technical contents of American Petroleum Institute Standard AFISpcc7 "Specifications for Drill String Components for Rotary Drilling" (39th edition, January 1998).
During the revision process, this standard has modified the relevant contents of 5Y5200--93 "Drill String Conversion Joints" and added new contents.
From the date of entry into force, this standard will replace SY5200-93. Appendix A of this standard is a normative appendix, and Appendix B is an informative appendix. This standard was proposed and classified by the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools. The drafting unit of this standard is the Pipe Research Institute of China National Petroleum Corporation. The main drafter of this standard is Lv Shuanlu.
The previous versions of the standards replaced by this standard are: SY5200-87.SY5200-93.
1 Scope
Drill String Conversion Joints
SY/T 5200—2002
This standard specifies the types, specifications, technical requirements, test methods and inspection rules, marking, and packaging and transportation requirements of drill string conversion joints (referred to as conversion joints) and conversion joint assemblies (referred to as assemblies): This standard is applicable to conversion joints and conversion joint assemblies used to convert and connect drill string components during petroleum and natural gas drilling operations. 2 Normative referenced documents
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, The latest version of the document applies to this standard: GB/T222 Chemical analysis of steel - Joint sample method and chemical composition tolerance of finished products GB/T223.1 Determination of carbon content in steel and alloys GB/T223.2 Determination of sulfur content in steel and alloys GB/T223.3 Chemical analysis of steel and alloys - Diantipyrine phosphite gravimetric method for determination of phosphorus content GB/T223.4 Chemical analysis of steel and alloys - Ammonium nitrate ammoniation volumetric method for determination of manganese content (B/T223.5 Chemical analysis of steel and alloys - Reduced silicate photometric method for determination of acid-soluble silicon content GB/T223.6 Chemical analysis of steel and alloys - Neutralization titration method for determination of boron content Determination of iron content in alloys and iron powder
GB/T 223.7
GB/1223.8～GB/I223.34Chemical analysis methods for steel and alloysGB/T 228
GB/T 229
GB/T 231
GB/T 4749
GB/T 6397
Metal tensile test method
Metal Charpy notched impact test method
Metal Brinell hardness test method
Oil drill pipe joint thread gauge
Metal tensile test specimen
GB/T9253.1Oil drill pipe joint thread
JB4730H Force vessel non-photographing detection
SY/T 5144Drill chain
SY/T 5198
Drilling tool thread grease
SY/I5290Petroleum drill pipe joint
SY5309General technical conditions for packaging of petroleum drilling machinery products 3 Types and codes
3.1 The conversion joint can be divided into three types according to the appearance and convenience: a) Type A (same diameter type): a conversion joint has only one outer diameter size (D), code JTA: b) Type B (different diameter type): a conversion joint has two outer diameter sizes (Dt, Dm), code JTB. c) Type C (left-handed type): the connection thread of the conversion joint is left-handed, code JTC. d) Type D (left-handed type): the connection thread of the conversion joint is left-handed and right-handed, code JII) 3.2 The structural type and type of the conversion joint shall comply with the provisions of Figure 1 and Table 1, SY/T 5200—2002
Kelly pipe conversion (protection) joint
Drill pipe conversion joint
Transition conversion joint
Viscose chain conversion joint
Figure 1 Conversion joint structure type
Degradation 1 Conversion joint type
Upper connection
Kelly pipe
Lower connection
Type A or Type B
Type A or H Type
Type A or Type B
Type A or Type B
Drill bit conversion joint
Tap conversion joint
Salvage conversion joint
Table 1 (continued)
1: Upper connection
Tap lower joint
Square drill cup
Lower connection
Square drill rod
Salvage tool
SY/T 5200—2(02
Type A or Type B
Note: For drilling tools connected by conversion joints, when the diameter difference is less than 15rut (except for swivel conversion joints and tap conversion joints): when the stop depth is less than or equal to 2(km), type A or type B conversion joints can be used; when the depth is more than 2000m, type B conversion joints should be used: 4 Dimensions
4.1 Type A and Type B conversion joints
4.1.1 The outer diameter (D) of type A conversion joints should be consistent with the standard outer diameter of large-size connectors, and the outer diameters (DL, D) of type B conversion joints should be consistent with the standard outer diameters of large-size connectors. 4.1.2 When the conversion joint is connected to the drill pipe joint, the outer diameter and chamfer diameter (D, J, L, D), 1) shall comply with the provisions of Table 2; when connected to the drill chain, it shall comply with the provisions of Table 3; when connected to the square drill rod, it shall comply with the provisions of Table 4; when the conversion joint is connected to the drill bit, the chamfer diameter (D) shall comply with the provisions of Table 5, and the outer diameter shall be consistent with the upper connection. 4.1.3 The inner diameter (d) of the A or B type conversion joint shall be consistent with the smaller inner diameter of the connecting parts at both ends; if there is a clear provision on the order form, the inner diameter (d) can be any inner diameter of the connecting parts in Tables 2 to 4. Table 2 Dimensions and specifications of conversion joints for connecting drill pipes Drill
Outer diameter D (DL, Dm, D,)
Flange diameter DF
Inner diameter d
Drill pipe joint code
NC26 - E (23 IF-E)
NC26 -X (2%1F-X)
NC26 - G (23IF-G)
NC31 -E (2%IF-E)
NC31 -X (23IF-X)
NC31-G (2IF-G)
NC31-S (2/%IF-S)
NC38 - E (3IF - E)
NC38 -X (3)2IF-X)
NC38 -G (3AIF -G)
NC38-S (3IF-S)
NC38 F (31IF E)
NC38 -X (3%IF -X)
NC38-G (3IF-G)
NC4U-G (4FH-G)
Ratio of torsional strength of external threaded joint to body
SY/T 5200—2002
Outer diameter D (D..D..D.)
Table 2 (continued)
Chamfer diameter D
Inner diameter d
Note: The dimensions of conversion joints used with the drill pipe joints to be phased out are shown in Appendix A, 4.1.4 The inner chamfer diameter (dz) is equal to the inner diameter of the drill pipe joint. Limit
Pin joint code
NC46 E.(4IF F) ||tt || (44IF S)
MC50 -E (4XIF- E)
NCS0 -X (4IF-X)
N50 -G (4&IF-G)
NE50 S (4IF S)
NCS0 E(4%IF E)
NCSO-X (IF-X)
NG50-G (4XIF-G)
NC5U-S (4XIF-S)
NC50-E (4%IF-E)
N(50-X (4)2IF-X)
NC50 G (AVIF- G)
5岁FH-E
SXFH-X
SWFH-S
4.1.5 The length of type A or type B conversion joint is divided into type I length and type II length, which shall comply with the provisions of Table 6. 4.1.6 The dimensional specifications of type A and type B conversion joints shall comply with the provisions of Table 7. 4.2 Type C and type D conversion joints
4.2.1 The outer diameter (D) of type C and type D conversion joints shall comply with the provisions of Table 2 and Table 4. 4.2.2 The chamfer diameter (D) of type C and type 1 conversion joints shall be consistent with the chamfer diameter in Table 2 and Table 4. 4
Ratio of torsional strength of external threaded joint to pipe
SY/T 52002002
4.2.3 The inner diameter (d) of C-type and D-type conversion joints shall comply with the provisions of Table 2 and Table 4: If the inner diameters are inconsistent, the smaller inner diameter shall be selected:
4.2.4 The inner chamfer diameter (de) of C-type and D-type conversion joints shall be equal to the inner diameter of the drill pipe joint, but for the C-type conversion joint connecting the square drill pipe and the faucet, the inner chamfer diameter (tn) shall be 6.4mm larger than the inner diameter (at)z4.2.5 Length of C-type and D-type conversion joints (1.3) should be 200mm~610mmcTable 3 Dimensions and specifications of conversion joints for connecting drill chainsOuter diameter (DL, D)
Original size
Limit deviation
Chamfer diameter
Basic size
Limit deviation
Note: The drill chain code shall comply with the provisions of SY/T5144:Inner diameter
Drill chain code
Basically
Limit deviation
ZTNC23 - 31 | (4IF)
ZTNC46 -65 (41F)
ZTNC46 -67 (4IF)
ZrNC50-70 (4V1F)
ZTNC50-72 (4/F)
ZINC56 -- 77
ZIN(56 - 80
ZI6% REG - 82
ZTNC61-90
Z17%REG- 95
ZTNC70 - 97
ZINC70 - 100
Z[N(77 - 110
Bending strength ratio
SY/E 5200—2002
Table 4 Dimensions of conversion joints for connecting kelly and swivel E end of kelly and lower end of swivel
Basic size limit
Standard selection deviation
Chamfer diameter
Basic size limit
Standard selection deviation
1%.8146.0 ± 0.8186.1134.5=0.4196.8146.010.8186. 1134.5- 0.4Thread code
Standard selection
Outer diameter DLR
Kelly lower end
Chamfer diameter
Thread code
Limit basic heel
Deviation|Scale deviation
158.8±0.8145.310.
RFGRFG
158.8+0.8145.3+0.4
NC26 (23AIF)
NC3(2IF)
NC38 (3IF)
NC46 (4IF)
NC50 (4XIF)
N26 (2%IF)
NC31 (2IF)
N38 (3IF)
NC46 (4IF)
NCS0 (4IF)
Table 5 Chamfer diameter of conversion joint for connecting drill bit Chamfer diameter DF
Inner diameter t
Basic limit
Dimension tolerance
Conversion joint thread guide
Basic size
Limit deviation
Conversion joint type
Table 6 Length of type A and type B conversion joints
Class I length
Basic size
Ultimate deviation
Basic size
SY/T 5200—2002
Class III length
Limit deviation
Note: When the well depth is greater than 2000m, Class I length should be selected: when the well depth is less than or equal to 2000m, Class I length or Class II length can be selected. The phosphating layer or plating layer should have the function of preventing corrosion and galling. Table 7 Type A and Type B conversion joints external dimensions
Basic dimensions
Limit deviation
Type A conversion joint
Class I length
Limited deviation basic dimensions
Basic dimension method
Limit deviation
Type B conversion joint
Class I length
Basic size Limit deviation
Class I length
Basic size Limit deviation
SY/T 5200—2002
4.3 Thread
The thread composition of the conversion joint shall be consistent with that of the connecting piece, and the dimensions of the internal and external threads shall comply with the provisions of GB/I9253,1: 5 Technical requirements
5.1 Chemical composition
The sulfur, phosphorus and oxygen content in the chemical composition of the conversion joint and the optical material shall be less than or equal to 0.030%. 5.2 Mechanical properties
The mechanical properties of the conversion joint and the polished part shall comply with the provisions of Table 8. Table Mechanical properties
Outer diameter
79.4-- 175
(3--63）
178--254
(7-10)
5.3 Manufacturing process requirements
Tensile strength
Yield strength c.2
Elongation:
Impact energy A
5.3.1 The conversion joint and the polished part shall be machined and formed by hot-rolled thick-walled alloy steel pipes, round steel or forged materials. 5.3.2 The conversion joint and the polished part shall be subjected to full-section quenching and tempering heat treatment. 5.3.3 The threaded surface shall be copper plated or phosphated, and the copper plating layer thickness shall be controlled at 5um-10um. 5.4 Thread close distancebzxZ.net
The thread close distance of the conversion joint shall comply with the provisions of SY/F5290: 5.5 Surface quality
5.5.1 The inner and outer surfaces of the conversion joint and the polished product shall not have defects such as cracks, folds, scars, pores, etc., and it is not allowed to remove or repair the defective parts.
5.5.2 The shoulder surface of the external thread of the conversion joint. The end face of the internal thread and the working surface of the screw shall be smooth, and the surface roughness shall comply with the provisions of Table 9, and burrs, cracks, marks, cracks and other defects that damage the sealing of the connection are not allowed. 5.5.3 The roughness R of the inner and outer surfaces of the conversion joint is less than or equal to 12.5m. Table 9 Surface roughness
External thread shoulder surface
Stone test method and inspection regulations
6.1 Chemical composition
Internal thread end face
Thread working surface
Thread crest
6.1.1 The chemical composition of the conversion joint and the steel for polishing shall be inspected and accepted according to the quality assurance certificate. If verification and analysis must be carried out according to the requirements of the purchaser, the sample shall be prepared according to GB/T 222 and analyzed and tested according to GF/T223.1-CB 223.34. 6.1.2 The chemical composition is based on each heat as a batch or 200 products as a batch. Take two polished products from each batch for inspection: If the chemical composition of the two samples representing the batch of products does not meet the requirements of 5.2, the batch of products is unqualified. If only one of the two samples is unqualified, two more samples should be taken from the batch of products for re-inspection. If the re-inspection results meet the requirements, the batch of products is qualified; if one of the re-inspections is unqualified, the batch of products is unqualified. 8
6.2 Mechanical properties test
SY/T 5200—202
6.2.1 Mechanical properties The tensile test specimens and impact test specimens are cut along the weaving direction. The center line of the test specimen is 25mm from the outer surface, or at the thickness of the cloth between the D, D, D areas. The two are named. The tensile test specimens are made according to GB/T6397. The test methods are carried out according to GB/T228, GB/T 231 and GB/T 229.
.2.2 Mechanical properties test is generally carried out on a batch basis. For continuous heat treatment, a test is conducted every 8 hours or less of continuous operation: If the test results of the sample representing the batch of products do not meet the requirements of Table 8, the manufacturer shall select two more samples from the same batch of products for re-testing. If the re-test results of the two samples meet the requirements, the batch of products is qualified. Or if any item of one sample fails in the re-testing, the batch of products is unqualified. The sampling and test results of the re-test samples shall be carried out in accordance with the provisions of 6.2.1. 6.3 Inspection of conversion joint threads
6.3.1 The threads of the conversion joints shall be measured for tightness in accordance with the requirements of 5.4. Before inspection, the joint threads shall be coated with a layer of neutral light oil.
6.3.2 The tightness value of the copper-plated thread shall be measured before steel plating, and the inspection shall be in accordance with the provisions of 5.4. The actual measured tightness value of the thread after copper plating shall not be used as the basis for rejection. The tightness value of the thread after plating shall be increased by a corresponding value, and the recommended value calculation formula is: 3 - [40t(a/2) -- 118
武+：
Conversion joint cone, (\);
Copper layer thickness (measured at the tooth side), um: line. 3.3 To ensure that the thread gauge and the conversion joint thread are in the correct position for inspection, the working gauge should be tightened with a 150rmm long handle with one person's arm strength until it stops (torque range 1.UN·m-5.0Nm) 6.3.4 The thread working gauge should be regularly checked with a proofreading gauge, and the verification shall be carried out according to (/T474 9: 6.3.5 Thread inspection is conducted by the supplier and the buyer respectively: When there is a dispute over whether the pitch and taper of the product meet the standards, the measuring instruments and methods recommended in SY Hall 5290 shall be used for arbitration. 6.4 Nondestructive inspection
6.4.1 After the conversion joint or light and heat treatment, full-section ultrasonic and magnetic particle inspection shall be selected. Magnetic particle inspection shall comply with the provisions of J4730, and the defect display length level of magnetic particle inspection shall not exceed level I. 6.4.2 The standard sensitivity of ultrasonic inspection is 2num First check the flat bottom hole test block, it is recommended to use the flaw detection test block see Appendix B, after negotiation between the supply and demand parties, other test blocks can also be used.
6.4.3 Check the quality of the internal and external surfaces of the product according to the provisions of 5.5. 7 Marking, packaging and transportation
7.1 The outer surface of the middle of the product should have a flat bottom marking groove with a depth of 4rmrr. The left-hand thread product should have an additional identification groove. The form of the marking groove is shown in Figure 2. 7.2 The conversion joints and optical defects that meet this standard should be steel molded in the marking groove before leaving the factory. Print the following marks: a) manufacturer name or code;
) factory batch number,
7.3 The conversion joint is also marked with the following code naming principles: factory batch number
) year of production (expressed by the number of teeth after the year) manufacturer name or logo code
7.4 The thread code of the conversion joint shall comply with the provisions of (/T9253.1, and the thread code shall be marked on the outer surface of the middle part of the conversion joint. 7.5 The conversion joint marking is named according to the following principles: 9
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.