水平定向钻进技术在胡底煤矿地质构造勘探中的应用

Application of Horizontal Directional Drilling Technology in Geological Structure Exploration in Hudi Coal Mine

摘要:

定向钻孔技术可以精确控制钻孔轨迹，可满足胡底煤矿对探明地质构造的要求。该矿采用ZDY6000LD型钻机施工4个近水平定向钻孔，精确探明主运、辅运石门的煤层走向，为抽掘采衔接提供了依据。介绍了胡底煤矿地质构造勘探定向孔的设计依据及钻进工艺。

Abstract:

The drilling trajectory can be precisely controlled by directional drilling technology to meet the requirements of geological structural exploration in Hudi coal mine. Four quasi-directional drilling boreholes has been constructed by ZDY6000LD directional drilling rig to accurately prospect coal seam strikes in main and auxiliary transport cross-hole, which provides a basis for coal mining, extraction and digging. The paper introduces the design basis of the directional geological structural exploration hole in Hudi coal mine and the drilling technology.