... Little oil bearing formation 少量油层 coal bearing formation 含煤地层 casing-bearing formation 下套管地层 ...
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It's very important for coal mining to find out small geological structure in coal bearing formation.
查清煤系地层中的小构造对于煤矿开采十分重要。
Among which, there are the developed oil gas bearing formation, coal bearing formation and red continental clastic rock formation.
其中发育有含油气建造、含煤建造和红色陆相碎屑岩建造。
Jurassic coal-bearing formation scatters over the northwestern China. The low-permeability sandstone reservoir occurs as the main reservoir type.
侏罗系煤系地层广泛分布于我国西北地区，低渗透砂岩储集层是其主要的储集层类型。
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