University of Science and Technology Beijing

North China Institute of Science and Technology

Beijing Anke Xingye Science and Technology Co., Ltd.

Qingbo He

Tao Zhou

Gang Yao

Jinhai Liu

Yitong Huang

Sitao Zhu

Quande Wei

Huan Li

Gaoang Wang

Shaohua Sun

Zhen Kong

Xiaocheng Qu

Fuxing Jiang

The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.

Coal bump control method for sectional hydraulic fracturing regions of near vertical ultra thick coal seam

Growing community of inventors

Beijing, China

Qingbo He