Drilling, blocking, fracturing and water injecting integrated structure and using method thereof

Abstract

The invention discloses a drilling, blocking, fracturing and water injecting integrated structure. The integrated structure comprises a pumping steel pipe and a coal mine roadway, wherein the pumping steel pipe is sequentially provided with two sets of fracturing grouting holes and two sets of water injection holes, two sets of sealing rings are welded and installed on the pumping steel pipe and are correspondingly arranged in parallel, through holes are formed in the sealing rings, liquid injection pipes are welded to the inner side walls of the through holes, and expansion capsules are welded to the outer side walls of the sealing rings. According to the drilling, blocking, fracturing and water injecting integrated structure and an using method thereof, through the multi-section structure of the pumping steel pipe, a water injecting pump, a booster pump and a fracturing pump are used in cooperation, so that the integrated structure has the effects of blocking, fracturing, grouting and water injecting at the same time when used, compared with the prior art, the integrated structure has the advantages of being simpler and more efficient in construction, repeated and sequential operation of blocking, fracturing, grouting and water injecting is not needed, so that the operation efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of drilling plugging and fracturing water injection, in particular to an integrated structure of drilling plugging and fracturing water injection and a method for using the same. Background technique [0002] In the work under the coal mine roadway, 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. However, for the working face, in order to reduce the pressure increase caused by the mining of the working face, Usually, certain measures are taken for the roof of the working face to make it collapse rapidly, and then fill the goaf to form a stable structure. However, due to certain geological conditions, there is a thick and hard roof on the roof of the working face, which causes the roof to hang and not fall, which seriously affects the release of pressure around the working f...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an integrated structure of drilling plugging and fracturing water injection and its use method, which solves the problem of laying multiple sets of equipment for operation when using hydraulic fracturing technology. In order to reduce costs and The problem of speeding up construction efficiency

Images