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Positive-pressure blasting device

A kind of explosion, pressure technology, applied in the field of oil and gas exploration, can solve the problem that ultra-shallow wells without shell high-energy gas fracturing cannot be realized

Active Publication Date: 2013-11-13
甘肃兰金民用爆炸高新技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a positive pressure detonation device to solve the problems existing in the prior art that can not be directly realized by high-energy gas fracturing in ultra-shallow wells question

Method used

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Examples

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Embodiment Construction

[0011] Such as figure 1 As shown, a positive pressure detonation device includes a percussion ignition system. The percussion ignition system includes a percussion firing needle 1, a percussion ignition joint 2, and an ignition core 3. The ignition core 3 and the percussion core are housed in the center hole of the percussion ignition joint 2. The firing pin 1, the ignition joint 2 impacts the firing pin and is connected with the screw, the impact firing pin 1 squeezes and fixes the firing core 3, and the sealing groove of the firing joint 2 is covered with an O-ring 4; it also includes Pressure generator, detonating device, the center hole of pressure generator 6 is provided with a bridge plug charge 5, the upper end of pressure generator 6 is screwed and connected with firing joint 2; the detonating device includes pressure detonating joint 7, pressure detonating firing pin 8, micro The detonating core 9, the booster charge 10, the center of the pressure initiation joint 7 a...

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Abstract

The invention discloses a positive-pressure blasting device, which solves the problem that ultra-shallow well crustless bomb high-energy gas fracturing cannot be directly realized in the prior art. The positive-pressure blasting device comprises a primer ignition system, a pressure generator and an initiation device. A bridge plug grain is arranged in the central hole of the pressure generator. The upper end of the pressure generator is connected with an ignition joint in a screwing way. The initiation device comprises a pressure initiation joint, a pressure initiation firing pin, a micro initiation core piece and a booster grain, wherein the booster grain, the micro initiation core piece and the pressure initiation firing pin are sequentially arranged in the center of the pressure initiation joint from the bottom to the top. The positive-pressure blasting device has the advantages that the combustion is ensured to be full during ultra-shallow well crustless bomb high-energy gas fracturing, the ultra-shallow well fracturing operation is smoothly realized, the filler is prevented from being discharged out of a hole and being failed, the explosion energy impact waves can decompose petroleum and natural gas hydrate solids into liquid and gas, and the collection and extraction of the generated liquid and gaseous natural gas hydrates are facilitated.

Description

Technical field [0001] The present invention is a field of oil and gas survey. It involves a measure of positive pressure on high temperature and bad in the operating layer section before a measure for shooting hole explosion and fracturing. Background technique [0002] During the mining process of oil and natural gas and hydropower, due to most inland block oil fields in the middle and late stages of oil fields, the strata energy is low, the infiltration factor is low, and the aquarmers are influenced by factors such as uniform distribution of solid state.In the process of hydraulic combination, under the simple natural conditions, natural gas water compounds are solidly discretely distributed on the surface or shallow seas of the sea., Ultra -shallow well -free high -energy gas fracture cannot be achieved. Invention content [0003] The purpose of the present invention is to provide a positive pressure explosion device to solve the problem that the ultra -shallow well -free h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/1185E21B43/263
Inventor 李森茂梁锐杨新锋马晓亚耿彬潇
Owner 甘肃兰金民用爆炸高新技术有限责任公司
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