... 取心coring 岩心core 岩心收获率recovery of core 取心方法coring method 局部反循环取心coring with local inverse circulation ...
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borehole strain over-coring method 钻孔应变解除法
Special coring operating method 特殊取心作业方法
over-coring stress relief method 套芯应力解除法
Over coring method by using hollow inclusion strain cells is applied for in-situ stress measurement.
采用空心包体套孔应力解除方法，进行现场地应力测量。
Gudao oilfield has so loose a lithology that the distribution of oil and water can't be identified by means of the conventional coring method.
孤岛油田岩性极为疏松，用常规钻井取心的办法不能较好地分析和认识油层的油水分布规律。
The main contents of this thesis are the research of simultaneous casing & coring method by pneumatic Down-the-Hole (DTH) hammer drilling and the innovation of a novel vegetable-gum drilling fluid.
本文是以中国水电顾问集团成都勘测设计研究院负责“架空层钻进取心技术研究”项目为依托，研究的主要内容是空气潜孔锤跟管取心钻进技术和新型植物胶冲洗液的开发研究。
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