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。
This clay fouls drilling tools and plugs piping, both severe problems for drilling crews.
这类粘土层妨碍钻井工具的使用，堵塞管柱，这些都会对井队产生严重问题。
In plastic or hard plastic clay, or water content smaller sand application microgroove blade drill, slowly and evenly drilling.
在可塑或硬塑粘土中，或含水量较小的砂土中应用密纹叶片钻杆，缓慢地均匀地钻进。
In plastic or hard plastic clay, or water content smaller sand application microgroove blade drill, slowly and evenly drilling.
在可塑或硬塑粘土中，或含水量较小的砂土中应用密纹叶片钻杆，缓慢地均匀地钻进。
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