沉积岩松软地层深孔绳索取心钻探技术实践

Practice of Wire-line Coring Drilling Technology for Deep Hole in Soft Sedimentary Rocks

摘要:

通过两年的施工实践，对松散地层深孔绳索取心钻探技术在技术装备配套、钻孔结构设计、机具与钻头选择、冲洗液使用等方面进行了新的尝试，取得了较高的经济技术成果。实践证明，松散地层深孔钻探采用绳索取心钻进技术是可行的，钻月效率提高1倍以上，而且钻孔质量好、工人劳动强度低。

Abstract:

In 2 years of construction practice, the new attempt was made on wire-line coring drilling technology for deep hole in soft formation about the technical equipment matching, borehole structure design, machine & bit selection and washing fluid. The practice proved that wire-line coring technology was feasible for deep hole drilling in soft formation, and drilling monthly efficiency increased over one time with good borehole quality and lower labor intensity.