SY/T 5400.2-2000 Power tongs for petroleum drilling and workover Part 2: Casing tongs
Some standard content:
ICS 75.180,10
Registration No.: 6851-2000
Petroleum and Natural Gas Industry Standard of the People's Republic of ChinaSY/T 5400.2---2000
Power tongs for petroleum drilling and servicingPart 2: Casing tongs
2000- 03-10 Issued
State Administration of Petroleum and Chemical Industry
2000-10-01 Implementation
SY/T 5400.2—2000
This standard is based on the implementation of the first published SY5400-91 casing power needle for oil drilling, and is revised to adapt to product improvement and meet domestic and foreign market needs after summarizing the experience in manufacturing and use, and directly adopting the relevant provisions of APIStC7K "Drilling Equipment Specification" involving casing tongs design, manufacturing and testing. This standard revised the original standard hydraulic drive to axillary gas driven double jaw open type and three jaw movable type as the basic type of casing tongs, realizing non-stop shifting operation between 2 and 3 gears. In addition, the following contents have been revised: 1) The name of the standard has been changed to "Power Tongs for Oil Drilling and Repair", which includes the following 3 parts: Part 1 (i.e. SYT5400.1): Drill pipe tongs; Part 2 (i.e. SY/T5400.2): Casing tongs; Part 3 (i.e. SY/T5400.3): Tubing tongs. This standard is Part 2.
2) The same method as AP1Spec:7K is used to indicate the model by the applicable pipe diameter and maximum torque, and the specifications are adjusted. 3) For the tooth plate of important vulnerable parts, the unified provisions of the tooth angle and arc are added, and the life index is stipulated. 4) The relative deformation of the opening size replaces the absolute value, which is convenient for the operability of different grades of product testing. 5) According to actual needs, the 100-time maximum torque test is modified to 50-time maximum torque make-up and make-off tests, and the overload test is cancelled.
6) The content of the inspection rules has been improved, the content of the inspection and type inspection is distinguished, and the full inspection, sampling inspection methods and judgment rules are clarified.
From the date of implementation, this standard will also replace SY5400-91. This standard is proposed and managed by the National Technical Committee for Standardization of Petroleum Drilling and Production Equipment and Tools. Drafting units of this standard: Lanzhou Petroleum Machinery Research Institute of the Ministry of Machinery Industry and Jiangsu Rudong Petroleum Machinery Factory. The main drafters of this standard are Tang Shangzhi, Liu Zhigang, Tang Jian, Shen Hui and Yang Jun. The original standard SY 5400-91 was first issued in November 1991. This is the first revision. After the revision, the standard number is changed to SY/T5400.2-2000.
1 Scope
Petroleum and natural gas industry standard of the People's Republic of China Power tongs for petroleum drilling and servicing
Part 2: Casing tongs
SY/T 5400.2-2000
Replaces SY5400-91
This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of power tongs for petroleum drilling and servicing (casing tongs for short). This standard applies to the design, manufacture and inspection of casing tongs. 2. Reference standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. The parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T3077--1988 Technical conditions for alloy structural steel GB/T3768-1996 Acoustic sound pressure method for determining the sound power level of noise source above the reflecting surface using envelope measurement surface simple method SY5308-87 General technical conditions for paint for petroleum drilling and production machinery products 3 Product classification
3.1 Type
3.1.1 According to the structural characteristics of the tongs head, it is divided into:
a) double-top plate opening type;
b) three-jaw plate movable type.
3.1.2 The driving modes are:
a) hydraulic;
b) hydraulic and gas combined drive.
3.2 Model
TQ CU-UOC
Back-up tongs code: B is used to represent back-up tongs, omitted if without back-up tongsMoving mode: Y is used to represent moving; omitted if driven by gas combinationMaximum torque value, kN·m
Maximum suitable casing diameter: mm
-Clamp head type code: Open-end clamp head is omitted, H is used to represent flexible headCasing tongs code
Example: Maximum torque is 35kN·tr, liquid-gas combined drive, maximum applicable casing diameter is 340mm (13in), without back-up tongs, the model of open-end casing tongs is: TQ340-35.Approved by the State Administration of Petroleum and Chemical Industry on 2000-03-10, implemented on 2000-10-01Www.bzxZ.net
3.3 Basic parameters
SY/T5400.2-2000
The basic parameters of casing tongs shall comply with the provisions of Table 1. Table 1 Basic parameters
Applicable pipe diameter
mm(in)
Rated pressure of power fluid
Working air pressure
Maximum torque）
Mid-gear torque
High-gear torque
Low gear speed
Mid-gear speed
High gear speed
TQ178-16
101.6~177.8
Double jaw open type casing pliers
TQ340-35
139.7-339.7
（5%13%)
Note: 1) Maximum torque: The maximum torque that the casing pliers can reach in low gear. Large torque 4 requirements
TQ508-40
244.5~508
(9%~20)
Three-plate movable-mouth casing pliers
TQH340-20Y
101.6~339.7
(4~133%)
TQH508-40
(9%~20）
4.1 The materials of the main force-bearing parts such as the ramp plate, jaw plate, jaw plate roller, jaw plate pin, gear, etc. shall comply with the provisions of Chapter 3 of GB/T3077-1988.
4.2 All purchased and outsourced parts of the supporting parts shall have quality certificates. 4.3 The casing pliers shall operate smoothly and without obstruction, and the operation shall be flexible, accurate and reliable. 4.4 The surface hardness of the tooth plate used for the casing pliers is 58~62HRC, the core hardness is not less than 35HRC, and the tooth angle α and tooth arc R dimensions shall comply with the provisions of Table 2.
Applicable pipe diameter of jaw plate
102~178
140~340
245-508
Tooth arc R
115~125
195~205
SY/T5400.2—2000
Table 2 Tooth angle and tooth arc
Tooth angle
4.5 When the jaw plate clamps the casing, the plate roller shall be in the position specified in the ramp plate design 4.6 The hydraulic system shall be subjected to a sealing test, and there shall be no leakage at each sealing point. 4.7 After the open-end casing pliers apply the maximum torque to the casing with the largest applicable diameter, the residual deformation at the opening shall not be greater than 0.5% of the opening size.
4.8 The rated pressure of the power fluid, working air pressure, maximum torque, mid-range and high-range torque of the casing pliers shall meet the requirements of Table 1 after testing. 4.9 The maximum working noise of the casing pliers shall not exceed 90dB (A). 4.10 The casing pliers shall be subjected to a reliability acceleration test under the conditions of the maximum applicable diameter and maximum torque, and there shall be no failure after 50 times of make-up and make-out.
The life index of the casing pliers tooth plate shall be no less than 200 times under the condition of 30% maximum torque. 4.11
The minimum design safety factor of the jaw plate and tail rope accessories of the casing pliers shall be 3, and a design verification test shall be carried out. 4.12
4.13 The jaw plate and tail rope accessories shall be subjected to a design verification test. The residual deformation of the tested jaw plate and tail rope attachment in the direction of force shall not exceed 0.2%.
4.14 The casing pliers shall be equipped with a torque gauge, the accuracy of which shall not be less than Class 2.5. 4.15 The casing pliers must have firm and clear operation and safety signs. 4.16 All exposed non-machined surfaces of the casing pliers shall be painted, and all exposed machined surfaces shall be oxidized or otherwise treated. 5 Test methods
5.1 No-load test
5.1.1 The no-load test of the whole machine can only be carried out after all components have been assembled and qualified. 5.1.2 Operate the casing clamp in high, medium and low gears in the forward and reverse directions for 10 minutes respectively, which shall meet the requirements of 4.3. 5.2 Visual inspection
It shall meet the requirements of 4.2, 4.14, 4.15 and 4.16. 5.3 Measure the arc and angle of the tooth profile of the tooth plate. The measurement of the arc and angle of the tooth profile of the tooth plate shall meet the requirements of 4.4. 5.4 Clamping test
The clamping test shall be carried out on the pipe diameter corresponding to each jaw plate. The test torque shall be 25% of the maximum torque and repeated 3 times. It shall meet the requirements of 4.5.
5.5 Hydraulic system sealing performance test
After the hydraulic system is assembled, plug the drain and unloading ports with plugs, and maintain the pressure for at least 3 minutes when the pressure is increased to 1.25 times the rated pressure. It shall meet the requirements of 4.6.
5.6 Load test
The load test shall be carried out on the test bench using the maximum applicable pipe diameter with a surface hardness of not less than 280HB. The test torque shall be gradually increased, with each increase not exceeding 25% of the maximum torque until the maximum torque is reached, and repeated 3 to 5 times at the maximum torque. 3
Should meet the requirements of 4 and 7.
5.7 Noise test
SY/T 5400.2—2000
When the casing tongs are running at high speed at no load, the sound level meter of Class A shall be used to measure in four directions 1m away from the casing tongs according to the requirements of 7.3 in GB/T3768--1996, and the requirements of 4.9 shall be met. 5.8 Accelerated reliability test
On the test bench, the casing tongs shall be continuously tested for make-up and make-out at the maximum torque for the pipe column with the maximum applicable pipe diameter and surface hardness not less than 280HB. Tightening the thread and then unscrewing it is considered as one time. Continuous make-up and make-out for 50 times shall meet the requirements of 4.10. 5.9 Life index test
When the casing clamp is made up and made out on the standard casing and coupling under 30% of the maximum torque, the life index of the tooth plate shall meet the requirements of 4,11.
5.10 Design verification test
The verification test of the jaw plate and tail rope accessories shall be carried out on a special test bench. The test torque value is calculated according to the following formula: P, = 0.8 × Pmax ng
Formula +: P.—Design verification test load, kN; Pmax The maximum load of the jaw plate and tail rope accessories corresponding to the maximum torque, KN: n. Design safety factor.
But P, shall not be less than 2Pmx: After the test, the residual deformation of the jaw plate and tail rope accessories in the force direction shall meet the requirements of 4.13. 6 Inspection rules
6.1 Casing pliers shall be inspected and qualified by the quality inspection department of the manufacturer according to this standard before they can leave the factory, and they shall be accompanied by a product quality certificate. 6.2 Inspection is divided into factory inspection and type inspection. 6.2.1 Factory inspection items include requirements 4.2, 4.3.4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 4.14, 4.15 and 4.16. If one item fails, the product is judged as a non-conforming product. 6.2.2 Type inspection.
6.2.2.1 Type inspection shall be conducted in any of the following cases: a) New product trial design and evaluation:
b) After formal production, if there are major changes in structure, materials, and processes that may affect product performance; c) When production is resumed after more than two years of suspension; d) Normal production, every three years or when a cumulative production of 250 units; e) When there is a significant difference between the factory inspection result and the last type inspection result:
6.2.2.2 In addition to the factory inspection items, the type inspection shall also include the inspections of 4.10, 4.11, 4.13, and 4.14. 6.2.2.3 Randomly select one unit from more than five units that have passed the factory inspection for testing. If one item fails, the type inspection shall be judged as failed. 7 Marking, packaging, transportation and storage
7.1 A label should be firmly installed at a conspicuous position on the casing tongs. The label should include the following: a) Product model, product standard number and name; b) Main parameters (items according to Table 1); c) Overall dimensions (length × width × height), mm × n × mm d) Manufacturing date, factory number; e) Manufacturer's name, trademark,
7.2 The casing tongs should be packed in boxes or other packaging specified in the contract, and the requirements should comply with the provisions of 3.3 of SY5308-87. 14
SY/T5400.2-2000
7.3 The packaging of the random technical documents should be moisture-proof and rain-proof. The random technical documents should include: a) Product certificate; b) Product instruction manual; e) Packing list; d) Random spare parts list.
7.5 The trocar should not be exposed to rain or other mechanical damage during storage and transportation. 7.6 The manufacturer shall repair or replace the trocar free of charge if the user complies with the storage, transportation and use conditions specified in the trocar pliers instruction manual within one year from the month of shipment from the manufacturer, but not more than 18 months after leaving the factory, if the trocar is damaged or cannot work normally due to poor manufacturing quality.3 Randomly select one product from more than five products that have passed the factory inspection for testing. If one item fails, it is considered that the type inspection has not passed. 7 Marking, packaging, transportation and storage
7.1 Firmly install a label in a conspicuous position on the casing clamp. The label should include the following: a) Product model, product standard number and name; b) Main parameters (items according to Table 1);
c) Overall dimensions (length × width × height), mm × n × mm d) Manufacturing date, factory number;
e) Manufacturing name, trademark,
7.2 The casing clamp should be packed in boxes or other packaging specified in the contract, and the requirements should comply with the provisions of 3.3 of SY5308-87. 14
SY/T5400.2-2000
7.3 The packaging of the random technical documents should be moisture-proof and rain-proof. The accompanying technical documents shall include:
a) Product certificate;
b) Product instruction manual;
e) Packing list;
d) Random spare parts list.
7.5 The trocar shall not be exposed to rain or other mechanical damage during storage and transportation. 7.6 The user shall comply with the storage, transportation and use conditions specified in the trocar pliers instruction manual. Within 1 year from the month of shipment from the manufacturer, but not more than 18 months after leaving the factory, if the product is damaged or cannot work normally due to poor manufacturing quality, the manufacturer shall repair or replace it for the user free of charge.3 Randomly select one unit from more than five units of products that have passed the factory inspection for testing. If one item fails, the type inspection is considered to have failed. 7 Marking, packaging, transportation and storage
7.1 Firmly install a label in a conspicuous position on the casing clamp. The label should include the following: a) Product model, product standard number and name; b) Main parameters (items according to Table 1);
c) Overall dimensions (length × width × height), mm × n × mm d) Manufacturing date, factory number;
e) Manufacturing name, trademark,
7.2 The casing clamp should be packed in boxes or other packaging specified in the contract, and the requirements should comply with the provisions of 3.3 of SY5308-87. 14
SY/T5400.2-2000
7.3 The packaging of the accompanying technical documents should be moisture-proof and rain-proof. The accompanying technical documents shall include:
a) Product certificate;
b) Product instruction manual;
e) Packing list;
d) Random spare parts list.
7.5 The trocar shall not be exposed to rain or other mechanical damage during storage and transportation. 7.6 The user shall comply with the storage, transportation and use conditions specified in the trocar pliers instruction manual. Within 1 year from the month of shipment from the manufacturer, but not more than 18 months after leaving the factory, if the product is damaged or cannot work normally due to poor manufacturing quality, the manufacturer shall repair or replace it for the user free of charge.
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