Drilling technology for precise exploration of coal mine water hazards

Abstract:

In order to ensure underground coal mine safety production, systematic analysis and research has been conducted on precise exploration drilling technology. According to the geophysical prospecting results of the 230m belt gateway at Working Face-3110 in Sangshuping Coal Mine, the exploration boreholes were designed for the abnormal water-rich area, and the regional exploration test was carried out by using MWD drilling combined with conventional rotary drilling. The test results in Sangshuping Coal Mine showed that the precise drilling technology allowed flexible deployment of exploration boreholes in space to explore the abnormal water-rich area in the underground coal mine; meanwhile the area of the geophysical abnormal region can be effectively deduced to avoid the water inrush and flooding accident in the larger water-rich area, ensuring safety of the No.11 gateway in Sangshuping Coal Mine. It can provide technical support for the detection of geological abnormal areas in coal mines and guarantee the safe production of coal mines.