煤矿水害精准探查钻探技术

Drilling technology for precise exploration of coal mine water hazards

摘要:

为了保证煤矿井下安全生产，对煤矿水害精准探查钻探技术进行了系统的分析与研究。针对桑树坪煤矿3110工作面230 m皮带巷道物探探测结果，对富水异常区域布设探查钻孔，采用随钻测量定向钻探技术与常规回转钻探技术相结合的钻探方法进行区域探查试验。桑树坪煤矿现场试验结果表明，精准钻探技术能通过富水区域空间位置灵活布设钻孔的方式对煤矿井下富水异常区域进行探查，同时，可以有效地推断出地质异常区域范围，避免异常富水区域突水淹井事故，确保了桑树坪矿11号煤巷道的安全掘进，为煤矿区地质异常区探测提供技术支持，为煤矿井下安全生产提供保障。

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.