广东省抽水蓄能电站工程勘探技术

摘要

Through exploration practice of pumped storage power station projects in Guangdong Province, the author has expounded slipping rock, fracture development -broken formation and deep hole drilling method.This paper points out the significance of the selection of diamond bit parameters for improving drilling efficiency of the slipping rock; the drilling technique of jet type reverse circulation can effectively improve the core recovery rate of fracture development-broken formation;reasonably adopting techniques such as drilling technology of wire-line coring can improve the economic and technical benefit of complicated deep hole drilling of the formation.%通过在广东省抽水蓄能电站工程的勘探实践, 论述了"打滑"岩层、 裂隙发育破碎地层以及深孔勘探的方法, 指出金刚石钻头参数的选择对于提高"打滑"岩层钻进效率的重要性; 金刚石喷射式反循环钻进技术能有效提高裂隙发育破碎地层的岩心采取率; 合理采用绳索取心钻进等技术能提高复杂地层深孔勘探的经济技术效益.