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Unlocking stored energy spring firing device for oil and gas well perforation detonation

A technology of firing device and energy storage spring, which is used in wellbore/well components, production fluids, earth-moving drilling, etc., can solve problems such as unreliable detonation of detonators, achieve a wide range of applications, improve success rate, and save construction costs Effect

Active Publication Date: 2018-06-01
WUHUA ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to avoid the deficiencies of the prior art, the present invention proposes an unlocking energy storage spring firing device for oil and gas well perforation detonation to solve the problem that the striker device under low pressure cannot reliably detonate the detonator

Method used

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  • Unlocking stored energy spring firing device for oil and gas well perforation detonation
  • Unlocking stored energy spring firing device for oil and gas well perforation detonation
  • Unlocking stored energy spring firing device for oil and gas well perforation detonation

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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 As shown, the unlocking stored energy spring firing device for oil and gas well perforation detonation in this embodiment includes a ball retaining piston 1 , a spring 2 , a steel ball 3 , a firing pin 4 , a support seat 5 and a detonator 6 . The connection relationship of the firing device is as follows: the spring 2 is assembled in the ball retaining piston 1, one end of the spring 2 is in contact with the bottom of the inner hole of the ball retaining piston, and the other end is in contact with the end surface of the firing pin 4, and the firing pin 4 is assembled on the support seat 5 The inner hole, and the steel ball 3 is placed in the spherical hole of the support seat 5 to contact the arc surface of the firing pin 4 at the center hole of the support seat 5. The ball stop piston 1 restricts the radial movement of the steel ball 3 t...

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Abstract

The invention relates to an unlocking energy storage spring firing device for oil and gas well perforation initiation and detonation, which is an unlocking energy storage spring firing device for oil and gas well perforation initiation and detonation, and is used for firing the initiator in the detonation device for oil and gas well perforation, solving In the existing firing device, the spring is pre-compressed for a long time in the device to cause the elastic failure of the spring, and the initial energy decreases after the potential energy is rotated, which causes the problem that the detonator cannot be fired. At the same time, the force acting on the firing device is greater than the spring preload. Unlocking and reliable triggering of the detonating device solves the problem that the detonating device used for oil and gas wells cannot preset the detonation pressure, improves the success rate of one-time perforation, saves construction costs, and is more reliable and safer to use.

Description

technical field [0001] The invention belongs to a device for perforating and detonating oil and gas wells, in particular to an unlocking energy storage spring firing device for perforating and detonating oil and gas wells. Background technique [0002] Perforation completion is a means of communicating oil and gas channels. This completion method has the advantages of safety, reliability, and long production life of oil wells. It is the most widely used completion method at home and abroad. With the production stimulation of oil and gas wells and the development of old well stimulation technology, the perforation construction technology is diversified, especially for the production stimulation of old wells, the well conditions are becoming more and more complex. The well fluid depth is very shallow or even almost no well fluid. Rod throwing can be used for detonation in vertical wells, but pressure detonation can only be used in highly deviated wells and horizontal wells. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/1185
Inventor 肖勇王峰章松桥张虎王雪艳陈特张博赵云涛门媛媛李嵚莹
Owner WUHUA ENERGY TECH CO LTD
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