The next step is to try to staunch the flow proper with drilling mud, a mixture of water and clay minerals.
下一步是设法很巧妙地用由水与黏土矿物质组成钻探泥浆堵住原油的涌出。
It is indicated by test that the effect of step type variable parameter vibratile drilling is more superior than that of common drilling at corresponding conditions.
实验得出，阶跃式变参数振动钻削效果明显优于相应条件下的普通钻削。
The filtrate loss controller for drilling fluid is prepared by one step method using alkaline paper making black liquor as main raw material.
以碱法造纸黑液为主要原料，经过一步合成工艺制备钻井泥浆降滤失剂。
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