摘要
针对神农架地区岩溶复杂地层,分析了岩溶地层的特点,有针对性地提出泥浆护壁、长钻具穿越溶洞、套管隔离溶洞岩芯钻探施工工艺方法。此法在神农架沐浴河矿区ZK207孔中进行了验证,突破了岩溶地区钻探施工的难题,满足了地质要求。
Aiming atcomplex karst stratum in Shennongjia,the authors analyze the characteristics of karst stratum,propose pointedly construction technology and method of core drilling such as mud protection,long drilling tool crossing through karst cave and casing isolated karst cave.These methods are verified in ZK207 hole,break through difficult problem of drilling construction in karst area,meet geological requirement.
出处
《资源环境与工程》
2010年第4期398-400,共3页
Resources Environment & Engineering
关键词
岩溶
复杂地层
泥浆护壁
长钻具
套管隔离
karst
complex stratum
mud protection
long drilling tool
casing isolation
