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Perforating device and method of perforating using same

A technology of perforating device and perforating gun, which is applied in the direction of earth drilling, mining fluid, wellbore/well parts, etc. It can solve the problems of uncertainty, high construction cost and complicated device, so as to improve safety and reduce construction cost. Difficulty and the effect of reducing construction cost

Active Publication Date: 2017-08-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this method, it is necessary to use electric power to realize the bridge plug setting, which brings certain uncertainties to the construction.
In addition, the device used in this method is also more complicated, resulting in higher construction costs

Method used

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  • Perforating device and method of perforating using same
  • Perforating device and method of perforating using same
  • Perforating device and method of perforating using same

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] figure 1 A perforating device 100 according to the invention is shown schematically. In this embodiment, the perforating device 100 includes an electric perforator 102 connected through a cable 110 , a plug setting tool 200 , and a bridge plug 50 driven by the plug setting tool 200 . The perforator 102, the bridge plug setting tool 200, and the bridge plug 50 are assembled sequentially from upstream to downstream, and the perforator 102 and the bridge plug setting tool 200 are connected by threads to facilitate the assembly of the perforating device 100 . After the bridge plug setting tool 200 and the bridge plug 50 pass through the first shear nail 103 (such as Figure 4 shown) to connect the two.

[0030] figure 2 A first embodiment of a perforator 102 of the present invention is shown. The perforator 102 includes a cable joint 111 provided at an upstre...

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Abstract

The invention relates to a perforation device and a method for perforation by using the perforation device. The perforation device comprises an electric perforator, a bridge plug setting tool and a bridge plug, wherein the bridge plug setting tool is fixedly installed on the downstream portion of the electric perforator, and the bridge plug is connected with the bridge plug setting tool through a first shear pin. The perforation device further comprises a locator. By means of the perforation device, the bridge plug is used for plugging, and the plug surface is accurately controlled.

Description

technical field [0001] The invention relates to an oil and gas well completion device, in particular to a perforation device. The invention also relates to a method of perforating using such a perforating device. Background technique [0002] In the stimulation of horizontal wells in shale gas reservoirs, the combined operation of bridge plugs set by electricity and cable perforation is an effective method. In this method, the bridge plug, electric plug setting tool and wireline perforating gun need to be connected to the pipe string and put into the well at first. When the pipe string enters the horizontal section, the plug setting tool, bridge plug, and perforating gun are sent to the target interval with the help of the liquid pumped into the well, and then the cable is powered on to start the plug setting tool. After the bridge plug is set, throw away your hands and lift the perforating gun to the perforation position. The cable is energized again for perforation, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/11
CPCE21B43/11E21B43/119
Inventor 李洪春李奎为贾长贵周健王宝峰徐胜强卫然张旭吴峙颖
Owner CHINA PETROLEUM & CHEM CORP