摘要
本文通过试验与理论分析,揭示了水力输岩的实质,寻找出输岩管道、岩心状态与水力参数之间的相互关系,并以岩心上升速度与输岩液流上升速度的接近率K,岩心直径与输岩管径之比B,定量地确定出在不同条件下,合理的水力输岩参数,对生产具有指导和参考价值。
The paper reveals the substance of conveyance of drilled - out rock along the central duct by hydraulic action through testing and theoretical analysis. It has found the mutual ralation among the central duct, core state and hydraulic parameters, and quantitatively determined the reasonable hydraulic parameters according to the velocity ratio K (the ratio between up veloci-ty of core, Vc, and up velocity of liquid ,VL and diameter ratio B (the ratio between core di-ameter, d , and central duct diameter, D). All of the results should be taken as guide and reference for the reverse circulation drilling by hydraulic action.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1990年第4期461-468,共8页
Earth Science-Journal of China University of Geosciences
关键词
反循环钻进
水力输出
连续取心
conveyance of drilled - out, reverse circulation drilling, hydraulic parameters.
