Primary reasons leading to reservoir heterogeneity are sedimentary environment and tectonism.
引起储层非均质性的主要原因是沉积环境和构造环境。
On the basis, concluded the sedimentary environment of primary mineable coal bed in the area, and the coal - accumulating feature of primary mineable coal bed has been studied.
在此基础上，归纳出本区主采煤层沉积环境，并研究了主采煤层的聚煤特征。
The studies of organic geochemistry on the ore-bearing formation show that the host-rock is rich in primary organic matters and the sedimentary environment is low basin in the epicontinental sea.
含矿建造的有机地球化学研究表明：主岩富含原生有机质，其沉积环境为还原一强还原的浅海低洼海盆。
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