Some standard content:
ICS 75. 180.10
Registration No.: 8140—2001
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T5216—2000
Conventional coring tools
2000—12-12 Issued
National Bureau of Petroleum and Chemical Industry
2001—06-01 Implementation
SY/T 5216—2000
Cited by
Coring tool series, models and basic specifications
Technical requirements
Test methods
Inspection rules
Marking, packaging, transportation, storage
SY/T 5216—2000
This standard is a revision of SY/T5216—94 "Self-locking coring tool" and SY5413—91 "Pressure-type conventional coring tool".
This standard absorbs the main contents of SY/T5216-94 and amends the following contents: 1. The name of the standard is changed to "Conventional coring tool", and the content includes white-locking and pressurized coring tools. 2. The tool series is redefined according to SY/T6197—1996 "Classification and model representation method of drilling coring tools". 3. Three pressurized coring tool specifications (QXI194-100, QXI194-115, QXI216-120) are added. 4. The technical requirements of SY/T5216-94 have been revised and completed. 5. The technical requirements and test methods of pressurized coring tools have been added. 6. The shackle torque value test of the safety joint and the torque test of the outer core tube have been added. 7. The test methods have been further improved. 8. The sampling content of factory inspection and the sampling content of type inspection have been added to the inspection rules. From the date of entry into force, this standard will replace SY/T5216-94 and SY5413-91 at the same time. This standard was proposed and submitted by the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools. The drafting unit of this standard is: Drilling Technology Research Institute of Sichuan Petroleum Administration Bureau. The drafting participants of this standard are: Drilling Technology Research Institute of Shengli Petroleum Administration Bureau. Drafters of this standard are Li Weicheng and Yang Xiakun. 1 Scope
Petroleum and Natural Gas Industry Standard of the People's Republic of China Conventional coring tools
Conventional coring tools
SY/T 5216—2000
Replaces SY/T 5216--94
SY 5413—91
This standard specifies the series, models and basic dimensions, technical requirements, test methods, acceptance rules, packaging, transportation and storage requirements of conventional coring tools
This standard applies to the manufacture and inspection of conventional coring tools. 2 Cited 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. Parties using this standard should explore the possibility of using the latest versions of the following standards: GB/T 2221984 Sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished products G3/T 228—1987
G3/r 229—1994
Metal tensile test method
Metal Charpy notched impact test method
GI3/T3077—1999Alloy structural steel
GH 106331989Steel tape measure
IF/T4730—1994Nondestructive testing of pressure vesselsSY5290~2000Petroleum drill pipe joints
SY5304-87General technical conditions for forgings for petroleum drilling and production machinery products (1998 SY5306—87 General Technical Specifications for Mechanical Processing of Petroleum Drilling and Production Machinery (Confirmed in 1998) SY5309—87 General Technical Specifications for Packaging of Drilling and Production Machinery (Confirmed in 1998) SY/T6197—1996 Classification and Model Indication Method of Drilling Core Tools 3 Series, Models and Basic Dimensions of Coring Tools 3.1 Model Indication Method: XXX-xXX |tt||. Nominal diameter of the core, m
Corning 1. External core reduction diameter, m
Tool classification code: XZ table for self-locking conventional coring 1H: QX[ represents extended conventional coring T!
Example: QX2180-1U5 represents: self-locking conventional coring L tool, the outer diameter of the outer core cylinder is 180mm, and the nominal diameter of the core that can be taken is 105mm.
Approved by the State Administration of Petroleum and Chemical Industry on December 12, 2000 and implemented on June 1, 2001
SY/T5216—2000
3.2 The series and basic dimensions of the coring T tool shall comply with the provisions of SY/T6197, see Table 1. Table 1 Coring tool series and basic dimensions
Outer cylinder dimensions
Coring tool model
QXZ121-66
QXZ133-70
QXZ146-82
QXZ172-101
QXZ180-105
QXZ194-120
QXJ194-100
QXJ194-115
QXJ216-120
4 Technical requirements
Inner cylinder size
Applicable wellbore diameter
142.9~152.4
152.4~165.1
165.1~190.5
190.5~215.9
215.9-244.5
215.9-244.5
190.5-215.9
215.9-244.5
Coring tools shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed approval procedures. 4.1
4.2 Forgings shall comply with the provisions of SY5304; machining shall comply with the provisions of SY5306. Nominal core diameter
4.3 The inner tube, outer tube and outer core tube of the pressure joint shall be free of cracks and deformation, and the magnetic particle inspection and ultrasonic inspection shall meet the JB/T4730-1994 Grade II accuracy requirements.
4.4 The parts of the tool shall not be allowed to have defects such as cracks, grooves, bumps, burrs, etc.4.5 The total length of the straightness of the inner and outer core tubes shall not be greater than 4mm, and the total length of the straightness of the pressure rod shall not be greater than 1.5mmc4.6 After the pressure joint is assembled, it should slide freely under its own gravity. 4.7
Mechanical properties:
Safety joint, stabilizer: The mechanical properties of the outer core tube after heat treatment measured according to GB/T3077 shall not be lower than those specified in Table 2. Table 2 Mechanical properties
Parts and components name
Safety joint
External core barrel, stabilizer
4.8 Thread requirements:
Tensile strength
4.8.1 The connecting thread should be free of defects and have a smooth surface.
Elongation 8
Impact value ak
4.8.2 The external thread shoulder surface and the internal thread end surface of the external core barrel are not allowed to have burrs, depressions and other defects that impair the sealing of the connection. 4.8.3 The connecting thread should be treated with anti-sticking. 4.8.4 Safety joint thread: The connection thread between the safety joint and the drilling boat shall comply with the provisions of SY5290; the specifications and models of the upper thread of the tool safety joint are shown in Table 3.2
Corning tool
Tool model
Joint thread code
121-66
133-70
4.8.5 Safety joint trapezoidal thread:
SY/T5216—2000
Thread specification model
146-82
41/2FH
4.8.5.1The trapezoidal thread profile is shown in Figure 1. 172-101
180-105
Trapezoidal thread profile
The main dimensions of the trapezoidal thread profile and trapezoidal thread are shown in Tables 4 and 5. Table 4 Trapezoidal thread profile
Coring tool model
QXZ121-66
QXZ133-70
QXZ146-82
QXZ172-101
QXZ180-105
QXZ194-120
Coring tool model
QXZ121-66
QXZ133-70
QXZ146-82
QXZ172-101
QXZ180-105
QXZ194-120
Thread pitch P
Tooth profile height hs
Tooth crest Width F
Thread code
Tr95×20
Tr108×20
Tr120×20
Tr145×24
Tr155×24
Tr165×24
Number of threads
194-120
65/8REG
194-100
194-115
Tooth bottom arc radius r.
Tooth top arc radius
Main dimensions of trapezoidal thread
External thread
216-120
Tooth profile angle 8
Internal thread
S1 T 5216--200
4.8.5.3 The maximum tensile strength and yield torque values of trapezoidal thread shall not be lower than the provisions of Table 6. Table 6 Maximum tensile strength and yield torque values of trapezoidal thread Thread code
Tr95 × 2
Tr108×20
Tr120×20
Tr1-15 x. 21
Tr155 X24
Trlh5 × 24
Maximum tensile strength
1.44x 109
1.65 × 106
2.00 ×10m
4.8.5.4 The buckling torque value of the safety joint shall be 40%-60% of the buckling torque of the outer core thread. 4.8.6 External core barrel thread:
4.8.6.1 Thread profile diagram is shown in Figure 2,
"Internal thread
1°47'24~
Thread axis
Mid-price line
External thread
Figure 2 External core simple thread profile diagram
Thread profile and main thread dimensions are shown in Tables 7 and 8, Table 7 Ten main dimensions of external core simple thread profile
Number of threads per 25.4mm
External core barrel
Thread code
QXZ121
OQXZ133
OQX2146| |tt||OQX2172
OQXZ180
OQX2194
Base surface center
Original angle height H
Tooth profile height, =t
Tooth twist value
Tooth top flat height h=Tooth bottom flat height
Main dimensions of external core barrel thread
External thread part
Big end major diameter
External thread section
Small end large diameter
External thread taper length
Internal thread taper length
Internal thread expansion cone hole
Big end diameter
SY/r 5216—2000
4.8.6.3 The measured value of the outer core cylinder spacing is 15.875±:m11, and the distance between the cold gauge measuring surface and the end face of the internal thread is 10.500mml
4.8.6.4 The maximum tensile strength and yield torque values of the internal and external threads of the outer core cylinder shall not be less than the provisions of Table 9. Table 9 Maximum tensile strength and yield torque values of the internal and external threads of the outer core cylinder External core thread code
QXZ121
CQXZ133
OQXZ146
(KXZ172
CXZIsU
CQxz194
4.8.6.5 External core barrel thread tightening torque value see Table 10 Maximum tensile strength
1.20×106
1.5n ×106
1: 98 × [06
2.50 ×106
Table 10 External core barrel thread tightening torque
External right core cylinder outer diameter × external core barrel inner diameter
$121×#93
9133× $101
4146×114
p172 ×436
180×144
$194×4158
4.8.7 The thread requirements of the upper and lower ends of the stabilizer are the same as those of the outer core barrel. 4.8.8 Inner core barrel thread:
4.8.8.1 See Figure 2 for the thread profile.
4.8.8.2 See Table 11 and Table 12 for the main dimensions of the thread profile and the main dimensions of the screw twist. Table 11. Main dimensions of the thread profile of the inner core barrel Number of teeth per 25.4mml
Inner core barrel
Thread code
[QXZ121
Medium diameter of base
Height of initial triangle H
Tooth profile height h=h
Yield torsion shortening value
10--12
13 --16
Tooth crest flattening height h
Table 12 Main dimensions of inner core barrel thread
External thread taper
Large end diameter
External thread taper
Small end large diameter
External thread taper length
Tooth bottom cutting height ha=h
Internal thread taper length
Internal thread expansion cone
Large end diameter
Inner core barrel
Thread code
IQXZ133||t t||IQXZ146
IQXZ172
IQXZ180
IQXZ194
Medium diameter of base
External thread taper
Major diameter at large end
SY/T5216—2000
Table 12 (End)
External thread taper
Major diameter at small end
Length of external thread taper
The limit deviation of external core barrel and internal core simple thread shall comply with the provisions of Table 13. Table 13 Thread limit deviation
Thread type
External core
Barrel thread
Inner core
Barrel thread
External thread taper
+0.25/101
+0.52/101
1The full length of the thread refers to the length between the first complete tooth and the last complete tooth. 2The taper limit deviation refers to the average taper deviation within the full length of the thread 4.9The temperature resistance of the sealing material shall not be lower than 120℃, and it shall be resistant to acid, alkali and oil. Internal thread taper
-0.25/101
4.10After the bearing is assembled, there should be an axial clearance of 0.5~1.0mm, and it should be able to rotate flexibly. Internal thread taper length
Tooth profile height
Internal thread expansion taper hole
Large end diameter
Tooth profile half angle
4.11 The wear-resistant layer of the core claw friction surface weld should be uniform, flat and firm; the core has good elasticity, and is qualified if there is no obvious deformation after 10 hand closures.
4.12 The stabilizer cladding layer is not allowed to have mesh cracks, slag inclusions and poor welding with the base metal: the brazed carbide block is not allowed to be loose or broken, and the cladding or welding must eliminate stress; the main dimensions of the stabilizer are shown in Figure 3 and Table 14. Table 14
Main dimensions of stabilizerwwW.bzxz.Net
Coring tool model
QxZ121-66
QXZ133-70
QXZ146-82
QXZ172-101
QXZ180-105
QXZ194-120
Working outer diameter
4.13 Pressurized joint,
D limit
Outer diameter of the body
Inner diameter of the body
The overall pressure test pressure of the tool is 20MPa, and the pressure is stabilized for 5min. The pressure drop should not exceed 1.5MPa. mm
Triple helix
Quadruple helix
5 Test method
SY/T5216—2000
External thread of outer tube
Internal thread of outer tube
Figure 3 Main dimensions of stabilizer
5.1 The thread of the drill pipe joint at the upper end of the safety joint shall be carried out in accordance with the inspection method specified in SY5290. 5.2 Other connecting threads shall be inspected with a special thread gauge. 5.3 The length of the inner core barrel and the outer core barrel shall be measured with a steel tape measure, and the indication error of the steel tape measure shall comply with the provisions of GB10633-1989I level. 5.4 The inner hole of the outer core barrel and the inner core barrel of the tool shall be tested with a diameter gauge of 500mm in length and 3mm±0.10mm smaller than the inner diameter to be measured.
5.5 Random sampling of each batch of materials for major parts and components, chemical composition inspection method according to GB/T222: tensile and impact test methods according to GB/T228, GB/T229.
5.6 Stabilizers and safety joints must be subjected to overall non-destructive testing over the entire length; non-destructive testing is performed piece by piece within the range of 0~500mm at both ends of the outer core barrel. Non-destructive testing is performed in accordance with the relevant provisions of JB/T4730 non-destructive testing of pressure vessels. 5.7 Visually inspect the sliding of the pressurized joint under deadweight after assembly. 5.8 Measure the axial clearance of the bearing after it is installed in the bearing box and turn the bearing by hand. 5.9 The yield torque value test of the internal and external threads of the safety joint and the outer core barrel is carried out on the test bench, and the torque is gradually increased to 50% of the yield torque value. The thread should not be significantly deformed. 5.10 The shackle torque value test of the safety joint is carried out on the test bench, and the torque is gradually increased to the outer core barrel tightening torque value before shackle. 5.11 Overall pressure test of pressurized joints and tools: 5.11.1 The test medium is clean water, and the pressure gauge specifications are: range 0~25MPa, accuracy 1.5 level 5.11.2 Test steps:
After the pressurized joint or tool is connected as a whole, check each connection part, connect the pressure test pipeline, and check the accuracy and 5.11.2.1
sensitivity of the pressure gauge.
Slowly increase the pressure to the specified value, which should meet the requirements of 4.13. 6
Inspection rules
6.1 Factory inspection
6.1.1 Inspection items
Factory inspection shall be carried out in accordance with 5.1, 5.2, 5.3, 5.4, 5.7, 5.8, and 5.11. 6.1.2 Sampling
6.1.2.1 The geometric dimensions of the threads, main parts, the quality of the weld layer of the stabilizer and core claws, and the sliding condition of the pressurized joints shall be inspected piece by piece
5Y/T5216—2000
6.1.2.2 The axial clearance of the bearing after it is installed in the bearing box shall be inspected piece by piece: 6.1.2.3 The core claws shall be inspected piece by piece, 6.1.2.4, pressurized joints: The overall sealing test of the tool shall be randomly sampled at 5%, and one set shall be selected for less than 20 sets; if one set fails, double the sampling shall be conducted.
6.1.3 Judgment rules
Maintenance.1.3.1 Inspection of parts, if it does not meet the requirements of this standard, the product shall be judged as unqualified. 6.1.3.2 If the pressure joint sealing test does not meet the requirements of this standard, the batch of products shall be judged as unqualified. 1.3.3 If the tool overall sealing test does not meet the requirements of this standard, the batch of products shall be judged as unqualified. 6.1.3.4 Each core-cutting work shall be inspected and qualified by the quality inspection department of the manufacturer and attached with a quality inspection certificate before it can be put into the factory. 6.2 Type inspection
6.2.1 Conditions
Type inspection shall be carried out in the following circumstances: a) When the structure, material, and process have major changes, which may affect the product performance; b) When the product is resumed after a long period of suspension; c) When the product is transferred to another factory; d) When the superior quality supervision department requires inspection. 6.2.2 Inspection Items
Type inspection shall be carried out in accordance with Chapter 5 of this standard and in accordance with the provisions of Chapter 4 of this standard. 6.2.3 Sampling
6.2.3.1 All sampling items for factory inspection [16.2.3.2 Safety joints and outer core barrels shall be inspected for thread yield torque value by 5% random sampling. If there are less than 20 sets, one set shall be sampled; if one set fails, double the pull test shall be conducted.
6.2.3.3 Safety joints shall be inspected for shackle torque value by 5% random sampling. If there are less than 20 sets, one set shall be sampled; if one set fails, double the sample test shall be conducted.
6.2.4 Judgment Rules
If one item of type inspection fails, the type inspection shall be judged as failed; the cause shall be found out, rectification shall be carried out, and type inspection shall be organized again. 7 Marking, packaging, transportation, storage
7.1 Marking
The following markings shall be stamped on the safety joint: manufacturer name or trademark, product model, factory number, date of manufacture: 7.2 Packaging
7.2,1 The packaging of the coring tool shall comply with the provisions of SY5309. 2.2 The surface of the stabilizer is wrapped with ropes. The tool is naked as a whole, and its two ends must be folded and tightened. 7.2.31 The spare parts and auxiliary tools of the tool must be packed in a special tool box, and the parts list shall be attached. 7.3 Transportation
7.3.1 Suitable for land and water transportation and loading requirements. 7.3.2 Handle with care during loading and unloading. During hoisting, the old rope must be supported at two points for balanced hoisting: 7.4 Storage recommendation || tt || 7.4.1 Tools should be placed in a dry and ventilated place, and moisture-proof and anti-rust measures should be taken. 7.4.2 Tools should be arranged neatly, the cargo platform should be flat, and all connecting threads should be coated with anti-rust grease: 81 Conditions
Type inspection shall be conducted in the following cases: a) during formal production, when there are major changes in structure, materials, and processes that may affect product performance; b) when the product is resumed after a long period of suspension; c) when the product is transferred to another factory;
d) when the superior quality supervision department requires inspection. 6.2.2 Inspection items
Type inspection shall be conducted in accordance with Chapter 5 of this standard and in accordance with the provisions of Chapter 4 of this standard. 6.2.3 Samples
6.2.3.1 All sample items for factory inspection [16.2.3.2 Safety joints and outer core barrels shall be inspected for thread yield torque value by 5% random sampling, and less than 20 sets shall be sampled; if one set fails, double the pull test.
6.2.3.3 Safety joints shall be inspected for shackle torque value by 5% random sampling, and less than 20 sets shall be sampled; if one set fails, double the sample test.
6.2.4 Judgment rules
If any item of the type inspection is unqualified, the type inspection is judged to be unqualified; the reason should be found out, the equipment should be collected and the type inspection should be organized again. 7 Marking, packaging, transportation, storage
7.1 Marking
The following marks shall be stamped on the safety joint: manufacturer name or trademark, product model, factory number, date of manufacture: 7.2 Packaging
7.2,1 The packaging of the coring tool shall comply with the provisions of SY5309. 2.2 The surface of the stabilizer is wrapped with ropes. The tool is naked as a whole, and its two ends must be folded and tightened. 7.2.31 The spare parts and auxiliary tools of the tool must be packed in a special tool box, and the parts list shall be attached. 7.3 Transportation
7.3.1 Suitable for land and water transportation and loading requirements. 7.3.2 Handle with care during loading and unloading. During hoisting, the old rope must be supported at two points for balanced hoisting: 7.4 Storage recommendation || tt || 7.4.1 Tools should be placed in a dry and ventilated place, and moisture-proof and anti-rust measures should be taken. 7.4.2 Tools should be arranged neatly, the cargo platform should be flat, and all connecting threads should be coated with anti-rust grease: 81 Conditions
Type inspection shall be conducted in the following cases: a) during formal production, when there are major changes in structure, materials, and processes that may affect product performance; b) when the product is resumed after a long period of suspension; c) when the product is transferred to another factory;
d) when the superior quality supervision department requires inspection. 6.2.2 Inspection items
Type inspection shall be conducted in accordance with Chapter 5 of this standard and in accordance with the provisions of Chapter 4 of this standard. 6.2.3 Samples
6.2.3.1 All sample items for factory inspection [16.2.3.2 Safety joints and outer core barrels shall be inspected for thread yield torque value by 5% random sampling, and less than 20 sets shall be sampled; if one set fails, double the pull test.
6.2.3.3 Safety joints shall be inspected for shackle torque value by 5% random sampling, and less than 20 sets shall be sampled; if one set fails, double the sample test.
6.2.4 Judgment rules
If any item of the type inspection is unqualified, the type inspection is judged to be unqualified; the reason should be found out, the equipment should be collected and the type inspection should be organized again. 7 Marking, packaging, transportation, storage
7.1 Marking
The following marks shall be stamped on the safety joint: manufacturer name or trademark, product model, factory number, date of manufacture: 7.2 Packaging
7.2,1 The packaging of the coring tool shall comply with the provisions of SY5309. 2.2 The surface of the stabilizer is wrapped with ropes. The tool is naked as a whole, and its two ends must be folded and tightened. 7.2.31 The spare parts and auxiliary tools of the tool must be packed in a special tool box, and the parts list shall be attached. 7.3 Transportation
7.3.1 Suitable for land and water transportation and loading requirements. 7.3.2 Handle with care during loading and unloading. During hoisting, the old rope must be supported at two points for balanced hoisting: 7.4 Storage recommendation || tt || 7.4.1 Tools should be placed in a dry and ventilated place, and moisture-proof and anti-rust measures should be taken. 7.4.2 Tools should be arranged neatly, the cargo platform should be flat, and all connecting threads should be coated with anti-rust grease: 8
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