Middle-Lower Ordovician 中下奥陶统
Middle-Lower Ordovician carbonate rocks 中下奥陶统碳酸盐岩
Lower-Middle Ordovician 中下奥陶统
Middle and Lower Ordovician 下中奥陶统
Lower-Middle Ordovician Carbonate Reservoir Kar 塔河油田西南部地区中下奥陶统碳酸盐岩储层缝洞发育特征与分布
Lower-Middle Ordovician reservoir 中
The synthetical studies show the reservoir of the area beneath Salt of middle-lower Ordovician is bad than the north area of the early Hercynian rock-solution development.
综合分析结果表明，盐下地区中下奥陶统储层稍劣于北部海西期岩溶发育地区。
Vertically, 3sets of source rocks including the Lower Cambrian, the Middle-o-Upper Ordovician-Lower Silurian and the Permian were developed in Chinese Paleozoic Marine basins.
研究认为中国古生代海相盆地在纵向上主要发育下寒武统、中上奥陶统—下志留统和二叠系3套烃源岩。
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