Bridge plug setting tool

A bridge plug and tool technology, applied in the field of bridge plug setting tools, can solve the problems of insufficient thrust of the setting tools, cumbersome approval procedures, affecting the setting effect, etc.

Active Publication Date: 2015-08-19
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high-pressure gas generated by the combustion of gunpowder is mainly used to drive the setting tools. Since pyrotechnics belong to the management of dangerous goods, the approval procedures required are cumbersome and when the bottom hole pressure is high, the thrust of conventional setting tools is insufficient, which may easily cause bridge plugs. Insufficient setting force affects the setting effect

Method used

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  • Bridge plug setting tool

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] Such as figure 1 As shown, the bridge plug setting tool according to the embodiment of the present invention includes an outer cylinder 5, a central pipe 4, a push cylinder 16, a pull rod 14, a slide switch 13, a driving device and at least one hydraulic cylinder, wherein:

[0019] The left end of the pull rod 14 is fixedly connected to the central tube 4, and the right end is used to connect the central tube of the bridge plug. The pusher 16 is sleeved on the outer wall of the right end of the outer cylinder 5, and is used to push the bridge when moving to the right. Plug the outer cylinder, the push cylinder 16 and the outer cylinder 5 are fixed by a shear pin 17...

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Abstract

The invention discloses a bridge plug setting tool. A left end of a pulling rod is fixedly connected with a centre tube, a pushing barrel is sleeved outside the outer wall of the right end of an outer barrel, and the pushing barrel is fixed with the outer barrel through a shearing pin; the outer barrel is sleeved outside the centre tube and is fixedly connected with the centre tube, two ends of the outer barrel and the centre tube are sealed, preset gap is formed between the outer barrel and the centre tube, and at least one liquid inlet is formed in the tube wall of the centre tube; a cylinder barrel is sleeved outside the outer barrel in a sliding mode for forming the sealing state with the outer wall of the outer barrel, a piston is sleeved outside the outer barrel in the cylinder barrel and is fixedly connected with the outer barrel, and pressure transferring holes are correspondingly formed in the outer barrel and each hydraulic cylinder; a sliding switch is mounted in the centre tube in a sliding mode along the axial direction, and a driving device is fixedly connected with the centre tube. The bridge plug setting tool needs no gunpowder as the power, shaft bottom hydraulic pressure is adopted for pushing the tool for setting bridge plug, the structure is simple, the cost is low and the driving force is strong.

Description

technical field [0001] The invention relates to the field of oil drilling equipment, in particular to a bridge plug setting tool. Background technique [0002] In the process of oil test sealing layer, stuck layer or fracturing, it is often necessary to use the bridge plug under the cable to realize the plugging of the perforated or fractured well section. At present, the high-pressure gas generated by the combustion of gunpowder is mainly used to drive the setting tools. Since pyrotechnics belong to the management of dangerous goods, the approval procedures required are cumbersome and when the bottom hole pressure is high, the thrust of conventional setting tools is insufficient, which may easily cause bridge plugs. Insufficient setting force affects the setting effect. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a bridge plug setting tool with stronger driving force. [0004] Therefore, technical scheme o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/134
CPCE21B33/134
Inventor 王林张世林邹鹏尹光伟张建华李楠黄其谷新江
Owner BC P INC CHINA NAT PETROLEUM CORP
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