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Plugging machine in self-expanding oil tube

A self-expanding, oil pipe technology, applied in the field of plugging devices, can solve the problems of time-consuming and laborious, no blowout prevention facilities, waste of resources, etc., and achieve good sealing effect, excellent water retention performance, and good effect.

Inactive Publication Date: 2018-05-11
河北鸿凯石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of society and the changes of the times, the new environmental protection law puts forward higher requirements for oil well operations. Advanced technology has already provided blowout prevention equipment for new oil wells, but for old oil wells, there is no related blowout prevention equipment. Spraying facilities, which often bring some working pressure, not only time-consuming and labor-intensive, but also a waste of resources, so there is an urgent need for a plugging device in the self-expanding oil pipe to meet the use requirements

Method used

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Embodiment 1

[0021] see Figure 1-3 , an embodiment provided by the present invention: a plugging device in a self-expanding oil pipe, including a one-way slip 2, a main body center pipe 4 and a weighting rod 7, the top of the main body center pipe 4 is fixed with a weighting rod 7, and the weighting rod The bottom end of 7 is fixed with clamping block 1, and the top of main body central tube 4 is provided with the card groove 8 that cooperates with clamping block 1, is convenient to replace the weighting bar 7 of corresponding specification, and the bottom end of main body central tube 4 is fixed with guide head 14. There is a reserved groove 6 inside the bottom end of the main body central tube 4, and an internal thread is provided on the inner wall of the reserved groove 6, and an external thread that cooperates with the internal thread is provided on the outer wall of the reserved block 13, which is convenient for guiding For the replacement of the head 14, the top of the guide head 14...

Embodiment 2

[0028] see Figure 1-3 , an embodiment provided by the present invention: a plugging device in a self-expanding oil pipe, including a one-way slip 2, a main body center pipe 4 and a weighting rod 7, the top of the main body center pipe 4 is fixed with a weighting rod 7, and the weighting rod The bottom end of 7 is fixed with clamping block 1, and the top of main body central tube 4 is provided with the card groove 8 that cooperates with clamping block 1, is convenient to replace the weighting bar 7 of corresponding specification, and the bottom end of main body central tube 4 is fixed with guide head 14. There is a reserved groove 6 inside the bottom end of the main body central tube 4, and an internal thread is provided on the inner wall of the reserved groove 6, and an external thread that cooperates with the internal thread is provided on the outer wall of the reserved block 13, which is convenient for guiding For the replacement of the head 14, the top of the guide head 14...

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Abstract

The invention discloses a plugging machine in a self-expanding oil tube. The plugging machine comprises one-way slips, a main body center pipe and a weight bar; the weight bar is fixed on the top endof the main body center pipe, and a guiding head is fixed on the bottom end of the main body center pipe; the bottom end of the main body center pipe is internally provided with a reserved groove; thetop end of the guiding pipe is provided with a reserved block matched with the reserved groove; the one-way slips are fixed on the top end of the outer side of the main body center pipe, and the bottom end of the outer side of the main body center pipe is provided with a window; a self-expanding rubber cylinder is fixed on the position, close to the window, in the main body center pipe, and the top end of the self-expanding rubber sleeve is provided with a push rod; and one end, away from the self-expanding rubber cylinder, of the push rod vertically passes through the bottom end of a chemical agent storage barrel and is connected with the bottom end of a piston. The plugging machine in the self-expanding oil tube enables the self-expanding rubber cylinder to expand with water by the arrangement of the self-expanding rubber cylinder, thereby plugging the oil pipe, preventing the phenomenon of fuel injection, and being convenient to use.

Description

technical field [0001] The invention relates to the technical field of plugging devices, in particular to a plugging device in a self-expanding oil pipe. Background technique [0002] With the continuous development of society and the changes of the times, the new environmental protection law puts forward higher requirements for oil well operations. Advanced technology has already provided blowout prevention equipment for new oil wells, but for old oil wells, there is no related blowout prevention equipment. Spraying facilities often bring some working pressure, which is not only time-consuming and labor-intensive, but also wastes resources. Therefore, there is an urgent need for a plugging device in the self-expanding oil pipe to meet the use requirements. Contents of the invention [0003] The object of the present invention is to provide a self-expanding oil pipe internal plugging device to solve the problems raised in the above-mentioned background technology. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/127C08L27/12
CPCE21B33/127C08K2003/2224C08L27/12C08L2201/08C08L2205/035C08L83/08C08L23/06C08L93/04C08K13/02C08K5/14C08K3/22C08K3/04
Inventor 冯海朝
Owner 河北鸿凯石油科技有限公司
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