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Oil pipe column cutting device with pressure balancer

A technology of cutting device and balancer, which is applied in wellbore/well components, earth-moving drilling, etc., can solve problems such as poor cutting effect, and achieve the effect of avoiding falling into the well, eliminating adverse effects and improving safety.

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a tubing string cutting device with a pressure balancer to solve the technical problem of poor cutting effect of the tubing string cutting device based on scorching agent in the prior art

Method used

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  • Oil pipe column cutting device with pressure balancer
  • Oil pipe column cutting device with pressure balancer
  • Oil pipe column cutting device with pressure balancer

Examples

Experimental program
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Effect test

Embodiment

[0042] This embodiment provides a tubing string cutting device with a pressure balancer, such as Figure 1 to Figure 5 As shown, it includes an ignition joint 1, a power output part 2, a cutting part 3 and a pressure balancer 4 connected in sequence from top to bottom;

[0043] The ignition connector 1 includes an ignition connector housing 101 with open top and bottom ends, a sealed conductive pin 102 is installed in the top of the ignition connector housing 101, and the top of the sealed conductive pin 102 protrudes from the top of the ignition connector housing 101. The bottom end of the sealed conductive pin 102 is connected with a high-current ignition assembly 103; an ignition powder chamber housing 104 is arranged in the bottom of the ignition joint housing 101, and the space in the ignition powder chamber housing 104 is an ignition powder chamber 105, and the ignition powder chamber 105 is filled with igniting powder 5; the top of the high-current ignition assembly 103...

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Abstract

The invention provides an oil pipe column cutting device with a pressure balancer. The oil pipe column cutting device comprises an ignition connector, a power output part, a cutting part and the pressure balancer which are sequentially connected from top to bottom. According to the oil pipe column cutting device with the pressure balancer, the pressure balancer can counteract upward moving force generated in the cutting process according to the fluid mechanics principle, so that the whole oil pipe column cutting device is kept stable in the cutting operation process, the adverse effect of the upward moving force on the cutting operation is eliminated, therefore, a good cutting effect is achieved.

Description

technical field [0001] The invention belongs to the field of oil and gas well operations, and relates to an oil pipe string cutting device, in particular to an oil pipe string cutting device with a pressure balancer. Background technique [0002] During the construction of oil and gas wells, tubing strings often get stuck. In order to ensure smooth operation, a tubing string cutting device can be used to cut stuck tubing strings. The oil tubing string cutting device based on scorching agent is widely used in the field of oil and gas well construction. This kind of tubing string cutting device uses the high temperature and high pressure fluid generated by the scorching agent to spray out from the jet hole of the device in the form of jet, so as to realize the String cutting. However, the actual cutting effect of the existing tubing string cutting devices based on glowing agents is often poor when performing cutting operations. Contents of the invention [0003] Aiming at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B29/02
CPCE21B29/02
Inventor 高强舒通胜刘景阳李凯汪长栓张荣生刘鹏毅岳海雷王兆文顾忠华
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