Drilling multiple-segment plugging, fracturing, grouting and water injection integrated equipment, and using method thereof

A cracking and equipment technology, applied in the field of mining equipment, can solve problems such as cracking and plugging, and achieve the effect of simple and efficient construction

Pending Publication Date: 2019-11-12
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of plugging, fracturing, grouting and water injection existing under different coal seams. The present invention provides an integrated equipment for drilling multi-stage plugging, fracturing, grouting and water injection

Method used

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  • Drilling multiple-segment plugging, fracturing, grouting and water injection integrated equipment, and using method thereof
  • Drilling multiple-segment plugging, fracturing, grouting and water injection integrated equipment, and using method thereof
  • Drilling multiple-segment plugging, fracturing, grouting and water injection integrated equipment, and using method thereof

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] Such as Figures 1 to 7 As shown, the drilling multi-stage plugging, fracturing, grouting, and water injection integrated equipment includes a pre-sealing device 1 and several transitional sealing devices 2 connected to the pre-sealing device 1 through connectors 8, And the rear sealer 3 connected with the last transitional sealer 2 through the connector 8. When the borehole diameter is relatively short, the transitional hole sealer 2 in the middle may not be used, and the quantity of the transitional hole sealer 2 may be selected according to the actual situation for a longer borehole.

[0045] The pre-sealing device 1 includes: a pre-pumping pipe 41; a water plug 4.1 is sealed at one end of the pre-pumping pipe 41; The two ends of the expansion capsule 71 are sealed and connected to the front pumping pipe 41 through the fir...

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Abstract

The invention discloses drilling multiple-segment plugging, fracturing, grouting and water injection integrated equipment, which comprises a front hole packer, a plurality of transition hole packers connected with the front hole packer through connecting heads, and a rear hole packer connected with the last section of transition hole packer through a connecting head. The drilling multiple-segmentplugging, fracturing, grouting and water injection integrated equipment has the beneficial effects that through the front hole packer, the multiple transition hole packers and the rear hole packer which are matched and combined, during actual drilling, the multiple hole packers can be mutually matched and combined, under the synergistic effect of the multiple hole packers, the effects of multiple-segment plugging, fracturing, grouting, water injection and the like are simultaneously achieved, and compared with the prior art, the advantage of easier and more efficient construction is achieved.

Description

technical field [0001] The invention relates to the field of mining equipment, in particular to a drilling multi-stage plugging, fracturing, grouting and water injection integrated equipment and a use method. Background technique [0002] In the underground work of coal mines, due to the large changes in the occurrence of coal seams and rock formations and the complex geological environment, different engineering conditions will be encountered during mining, including: [0003] (1) A hard top plate that is hard to collapse. The hard roof may lead to large-scale suspended roofs in the goaf. After the collapse, there will be high-intensity periodic pressure. In severe cases, it may cause disasters such as rock shocks, hurricanes, and roadway gas explosions. It is necessary to crack hard rocks and destroy the roof. the integrity of [0004] (2) Weak and broken surrounding rock. The roadway is located in the broken surrounding rock, which is prone to roof subsidence, large de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/12E21B33/13E21B43/26
CPCE21B33/12E21B33/13E21B43/261
Inventor 张飞腾王襄禹柏建彪吴博文吴文达王共元刘帅刚王广辉
Owner CHINA UNIV OF MINING & TECH
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