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A kind of oil drill pipe with protective structure and its processing technology

A technology for protecting structure and processing technology, applied in drill pipe, drill pipe, earthwork drilling, etc., can solve the problems of inability to ensure wear resistance, enhanced pressure resistance of drilling oil cavity, etc., to ensure drilling transportation and not easy to slip , to avoid the effect of slippage

Active Publication Date: 2022-04-08
烟台佑利技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an oil drill pipe with a protective structure and its processing technology, which is used to solve the problem that in the prior art, the wear resistance cannot be guaranteed on the basis of avoiding slippage after assembly, and at the same time, the drill pipe is used during the oil drilling and transportation process. The pressure resistance of the oil cavity needs to be further strengthened

Method used

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  • A kind of oil drill pipe with protective structure and its processing technology
  • A kind of oil drill pipe with protective structure and its processing technology
  • A kind of oil drill pipe with protective structure and its processing technology

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Effect test

Embodiment 1

[0041] Such as Figure 1-7 As shown, the present embodiment provides a petroleum drill pipe with a protective structure, including a drill pipe body 100, the periphery of the drill pipe body 100 is detachably equipped with a wear-resistant casing 200, and the top of the drill pipe body 100 is provided with a protruding The oil outlet head 110 of the drill pipe body 100 is provided with a concave oil inlet head 120 at the bottom of the drill pipe body 100, and the oil outlet head 110 and the oil inlet head 120 of the drill pipe body 100 adjacent up and down are fixed and installed through the end protection structure 300, The end protection structure 300 is detachably connected to the oil outlet head 110 and the oil inlet head 120;

[0042] The end protection structure 300 includes a fastening ring 310, a fastener 320, and a sealing gasket 330. The fastening ring 310 is arranged on the periphery of the oil outlet head 110 and is higher than the oil outlet head 110. The lower su...

Embodiment 2

[0048] Such as Figure 5-6 , Figure 9 As shown, in this embodiment, the sections of the fastening ring 310 and the sealing gasket 330 are annular, and a plurality of fasteners 320 are distributed in an annular array on the periphery of the fastening ring 310, and the fasteners 320 include a connecting portion 323 And a section of mounting part 324, one end of the connecting part 323 is connected with the fastening ring 310, and the other end is connected with an arc-shaped mounting part 324, and the outer surface of the mounting part 324 is provided with serrated protrusions 325 for increasing friction; The mounting portion 324 is tightly pressed against the bottom inner periphery of the drill pipe body 100 . The fastener 320 including the connection part 323 and the installation part 324, in the process of fastening the oil outlet head 110 and the oil inlet head 120 adjacent up and down, the fastening ring 310 drives the installation part 324 to screw in, so that multiple i...

Embodiment 3

[0050] Such as Figure 4-6 As shown, a wall protection structure 400 is provided between the drilling oil cavity 140 and the inner wall of the drill pipe body 100. The wall protection structure 400 includes several wall cavities 410 arranged around them. A second compression spring 420 abuts against the inner walls on both sides of the wall cavity 410 . The setting of the wall protection structure 400, the second compression spring 420 set in the wall cavity 410 is a coil spring that bears the pressure, which relieves the impact force of the instantaneous large flow of oil on the oil drilling cavity 140 during the oil drilling and transportation process. , improve the pressure resistance of the oil drilling cavity 140 .

[0051] Such as Figure 1-2 As shown, the outer wall of the wear-resistant sleeve 200 is spirally provided with several circles of anti-slip cavities 220 sunken inwards, and the anti-slip cavities 220 are provided with a plurality of cutting protrusions 230 ...

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Abstract

The invention relates to the technical field of oil drilling tools, in particular to an oil drill pipe with a protective structure and its processing technology. The oil drill pipe is detachably assembled with a wear-resistant casing on the periphery of the drill pipe body, and the wear-resistant casing The rod body is protected to improve the wear resistance of the drill pipe body and prolong the service life of the drill pipe body; the upper and lower adjacent oil outlet heads and oil inlet heads are fixed and installed through the end protection structure, and the fastening ring is fixed to the oil outlet head and the oil inlet head. The periphery of the oil inlet head is fastened and assembled to avoid oil leakage during the assembly and use of multiple drill pipe bodies. The fasteners further tighten the periphery of the oil outlet head and the oil inlet head to prevent the two drill pipe bodies from slipping after assembly; The oil drill pipe with protective structure has excellent stability and wear resistance, and the multiple drill pipe bodies are not easy to slip off after assembly, prolonging the service life; the processing technology obtains multiple oil drill pipes that are firmly connected to ensure the stability in the oil drilling process sex.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling tools, in particular to an petroleum drilling pipe with a protective structure and a processing technology thereof. Background technique [0002] Oil drill pipes are usually used to connect surface equipment such as drilling rigs on the ground with drilling and grinding equipment or bottom hole devices at the bottom of the well, and cooperate with drill bits for drilling operations. In the field of oil production, oil drill pipe is one of the indispensable important tools in oil drilling operations. Since the depth of oil drilling is usually deep, as the drilling depth increases, it is necessary to use multiple drill pipes connected in sequence to ensure normal drilling operations. , and due to different geological conditions, the depth of some oil drilling can reach several thousand meters, and even the depth of oil drilling in some special areas can reach tens of thousands of meters; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00E21B17/042E21B17/10E21B17/07C22C38/02C22C38/04C22C38/22C22C38/24C22C38/26C21D1/18
CPCE21B17/00E21B17/042E21B17/1085E21B17/07C22C38/02C22C38/04C22C38/22C22C38/24C22C38/26C21D1/18
Inventor 刘建毫
Owner 烟台佑利技术有限公司
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