Temporary blocking and deflection fracturing method of in-layer artificial fracture in coalbed gas well

Abstract

The invention relates to a temporary blocking and deflection fracturing method of an in-layer artificial fracture in a coalbed gas well. According to the temporary blocking and deflection fracturing method, a fracture blocking agent with the high strength is used to enter an opened fracture along with adding of fracturing fluid to form bridge blinding, net pressure of the fracture is improved, fluid is subjected to deflection in a stratum to form fractures in different directions or enable fractured sand to be uniformly distributed in the fracture, so that a new fluid flowing channel is openedin a reservoir, wider communication of an oil and gas reservoir is achieved, and oil and gas production is increased.

Description

technical field [0001] The invention relates to the technical field of coalbed methane exploitation, in particular to a fracturing method for applying a temporary plugging agent in a wellbore of a coalbed methane well to achieve the technical effect of intralayer fracture diversion. Background technique [0002] As an unconventional energy source, coalbed methane is an extremely critical new clean energy source in China. In recent years, the world's energy has become increasingly tense, and more and more domestic enterprises have paid attention to coal-bed methane. However, the development of domestic coal-bed methane is currently progressing slowly, especially the coal-bed methane resources in Guizhou. The characteristics of many thin coal seams in the Qianbei region of Guizhou make the exploration, development and production process of coalbed methane extremely complicated, especially the challenges in fracturing and reconstruction are more significant. As one of the main...

AI Technical Summary

Problems solved by technology

In recent years, the world's energy has become increasingly tense, and more and more domestic enterprises have paid attention to coal-bed methane.