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Splicing type expansion well wall device for petroleum drilling and production

An oil drilling and splicing technology, which is applied in the direction of earthwork drilling, wellbore/well parts, etc., can solve the problems of oil pipe damage, inability to adjust, oil hole deformation, etc., and achieve the effect of avoiding damage

Active Publication Date: 2022-03-04
JIANGSU JIASHENG PETROLEUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a spliced ​​expansion well wall device for oil drilling to solve the existing well wall structure. Because the diameter of the oil hole is small, it cannot be adjusted according to the diameter of the oil hole. The geological conditions of the location are also different, and the oil hole is deformed, causing damage to the oil pipe.

Method used

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  • Splicing type expansion well wall device for petroleum drilling and production
  • Splicing type expansion well wall device for petroleum drilling and production
  • Splicing type expansion well wall device for petroleum drilling and production

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Embodiment 1

[0041] as attached figure 1 to attach Figure 12 Shown:

[0042]The present invention provides a spliced ​​expansion well wall device for oil drilling, which includes a traction part 1; Inside the fixture 102; the control part 3, the control part 3 is arranged inside the protection part 2, and the guide ring 301 of the control part 3 is rotatably connected in the mounting groove 203, and the rotation groove 302 of the control part 3 is rotatably connected with the protection part The fixed ring 201 of 2; the expansion part 4, the expansion part 4 is arranged inside the control part 3, and the sliding block 401 of the expansion part 4 is slidably connected in the rotation groove 302, and the fixed block 402 of the expansion part 4 is inserted in the protection part 2 In the slot 204 of the connecting part 5, the connecting part 5 is arranged above the protective part 2, and the mounting block 501 of the connecting part 5 is fixed on the bottom of the bottom plate 303 by screw...

Embodiment 2

[0045] Such as Figure 5 As shown, the protective part 2 includes: a fixed ring 201, the fixed ring 201 is a ring-shaped structure, and the outer wall of the fixed ring 201 is provided with a rectangular groove; the fixed ring 201 is used for fixedly connecting the protective tube 202; The tube 202 is a cylindrical structure, and the outer wall of the protective tube 202 is provided with a rectangular groove, and the protective tube 202 is fixedly connected to the bottom of the fixed ring 201; the protective tube 202 is used to protect the control part 3 of the device from being damaged; Mounting groove 203, mounting groove 203 is cylindrical groove, and the bottom of mounting groove 203 is connected with rectangular through hole, and the outer wall of mounting groove 203 is connected with annular groove, and mounting groove 203 is arranged on the top of fixed ring 201 The installation groove 203 is used to install the guide ring 301, and the installation groove 203 is also us...

Embodiment 3

[0049] Such as Figure 8 As shown, the control part 3 includes: a guide ring 301, the guide ring 301 is an annular structure, and the outer wall of the guide ring 301 is provided with an annular protrusion structure, and the top of the guide ring 301 is provided with a hexagonal columnar protrusion structure, the outer wall of the guide ring 301 is provided with a circular through hole; the guide ring 301 is used to drive the control part 3 for expansion support; the rotation groove 302, the rotation groove 302 is a cylindrical groove, and the top of the rotation groove 302 is connected with a circle arc-shaped groove, and the rotation groove 302 is arranged at the bottom of the guide ring 301; the rotation groove 302 is used to install the bottom plate 303, and the rotation groove 302 is also used to control the sliding block 401 through the top arc-shaped through hole; the bottom plate 303, the bottom plate 303 is an annular structure, and the bottom of the outer wall of the...

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Abstract

The invention provides a splicing type expansion well wall device for petroleum drilling and production to solve the problems that when an existing splicing type expansion well wall structure is used, due to the fact that the diameter of an oil hole is small, the well wall structure can only be inserted into the oil hole and cannot be adjusted according to the diameter of the oil hole, and the inner wall of the oil hole cannot be effectively supported. The splicing type expansion well wall device comprises a traction part. A protection part is arranged at the top of the traction part; the control part is arranged in the protection part; the expansion part is arranged in the control part; the connecting part is arranged above the protection part, the sliding block is slidably connected into the rotating groove, and cylindrical protruding structures at the upper end and the lower end of the sliding block are slidably connected into an arc-shaped through hole in the top of the rotating groove and a rectangular through hole in the bottom of the mounting groove correspondingly, so that when the guide ring rotates in the mounting groove, the sliding block is driven to move; the fixing block is driven by the cylindrical structure to be close to the inner wall of the oil hole, so that the inner wall is supported.

Description

technical field [0001] The invention belongs to the technical field of oil drilling, and more specifically relates to a spliced ​​expansion well wall device for oil drilling. Background technique [0002] At present, in the process of oil drilling and production, oil pipes are inserted after drilling holes in the ground for mining. During the installation of oil pipes, the installation of oil pipes is unstable due to the large gap between the well wall and oil pipes, which affects oil production. Therefore There is a need for an expansion well wall structure adopted by oil drilling, which is used for installing oil pipes and is convenient for oil extraction. [0003] Due to the small diameter of the oil hole in the existing well wall structure, the well wall structure can only be inserted into the oil hole, and cannot be adjusted according to the diameter of the oil hole, so that it cannot effectively support the inner wall of the oil hole. The situation is also different, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B29/10
CPCE21B29/10
Inventor 王建
Owner JIANGSU JIASHENG PETROLEUM TECH CO LTD