针对该地区存在的井下复杂情况，研究并提出了一系列的技术对策。
A series of countermeasure of drilling fluids technology was rendered by research according to the complicated conditions at local district.
现场应用表明，该技术能有效地防止煤层坍塌，减少井下复杂情况及事故。
Field applications show that this technique can effectively prevent coal beds sloughing and decrease hole problems and drilling accidents.
我有一个重要的关于如何处理井下复杂情况的问题，您介意我去您那里请教吗？
I have a rather important problem about how to deal with complicated hole condition. Would you mind if I called on you to discuss it.
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