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Internal Directional Spin-rotation Impact Detonation Device for Completion of Oil and Gas Wells

A detonation device, oil and gas well technology, applied in the direction of wellbore/well components, production fluid, measurement, etc., can solve the problem that the direction of the jet flow of perforating bullets cannot be measured, and achieve the effect of improving accuracy

Active Publication Date: 2017-01-11
WUHUA ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the jet azimuth of the perforating bullet cannot be measured when the inner directional azimuth is perforated

Method used

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  • Internal Directional Spin-rotation Impact Detonation Device for Completion of Oil and Gas Wells
  • Internal Directional Spin-rotation Impact Detonation Device for Completion of Oil and Gas Wells

Examples

Experimental program
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Embodiment Construction

[0022] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0023] Such as Figure 1~2 As shown, the oil and gas well proposed by the present invention uses an internal directional self-rotating impact detonator, which is composed of an outer cylinder 1, an azimuth key 2, a guide sleeve 3, a central bearing 4, an impact detonator 5, a detonator 6, and a directional connecting pipe 7. Union 8, fixed bearing 9, even gun joint 10, locating plate 11, support bearing 12, partial weight bullet frame 13, gun tail 14 forms. The azimuth key 2 is fixed on the upper end of the guide sleeve 3 by welding, the guide sleeve 3 is the upper part of the percussion initiation device 5, the detonator 6 is placed inside the lower end of the percussion detonation device 5, and the lower end of the percussion detonation device 5 is connected with the directional connecting pipe 7 at the same time, and the guide The outer upper end of the sleev...

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PUM

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Abstract

The invention relates to an internal directional self-rotating impact initiation device used for oil and gas well completion. The guide sleeve is a part of the upper end of the impact initiation device. The azimuth key is fixed on the guide sleeve through welding. Connection, the detonator is placed inside the lower end of the impact detonating device, the directional connecting pipe is connected to the gun joint through the connecting union, the positioning plate is fixed inside the directional connecting pipe, and is connected with the directional connecting pipe and the orientation key on the guide sleeve through the positioning key Keeping the same axial direction, the above assembly components are placed inside the outer cylinder and supported by each bearing. The detonating device realizes the measurement of the perforation azimuth from the upper end of the detonating part of the perforating gun string, and effectively improves the accuracy of the inner directional positioning perforation. Based on the directional measurement method of the detonating device, the problem of internal directional and azimuth perforation measurement is solved.

Description

technical field [0001] The invention belongs to a perforation detonation device in the field of oil and gas well completion, and in particular relates to a perforation detonation device capable of realizing internal directional measurement and in which the detonation device is connected to the following perforating gun internal bullet frame and self-rotating impact detonation device. Background technique [0002] With the exploration and development of oil and gas resources, the development of oil and gas reservoirs requires refined perforation technology is becoming more and more common, which determines the need for continuous innovation and development of tubing transportation perforation technology. The continuous development of perforating technology is mainly based on the geological structure of oil and gas resource reservoirs. The various stresses produced by the formation itself due to weathering, deposition, and crustal movement are called formation stress. Such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/116E21B43/1185E21B47/024
CPCE21B43/116E21B43/1185E21B47/024
Inventor 章松桥周曌王峰肖勇黎涛刘正彦同剑
Owner WUHUA ENERGY TECH CO LTD
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