Study on frost heaving susceptibility of medium sand and coarse sand of highway subgrade in seasonally frozen ground region;
季冻区公路路基中粗砂冻胀性研究
This paper analyzes the geology and works out new fracturing technologies for the two oil provinces, which are compound fracturing, coarse solids fracturing, and liquid nitrogen fracturing.
本文通过对刘庄和胡状集油区的地质情况进行分析 ,研究出适合两个油区的压裂新工艺技术———复合压裂、粗砂压裂和加液氮压裂工艺技术。
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