It is possible to find industrial oil and gas flow so long as a group of well-developed fractures are found in a favourable region of a fractured shale reservoir.
在泥岩油气藏的有利地区，找到较发育的裂缝群，就有希望找到工业性油气流。
In the early Nenjiang stage, a largest lake transgression occurred in the Songliao basin, depositing a group of black shale with intercalation of oil shale in the major areas of basin.
松辽盆地在嫩江早期发生了最大湖侵事件，在整个盆地范围内形成了一套黑色泥页岩夹油页岩。
Wudaoliang group is grayish - white, yellow - grey, dark - grey ash rock, which interbeded with the conglomerate, sandstone, a little amount mudstone, oil shale with unconsolidated sand mud rock.
五道梁群以灰白色、灰黄色灰岩为主，含有砾岩、砂岩，夹有少量泥岩、油页岩和未固结砂泥沉积。
Wudaoliang group is grayish - white, yellow - grey, dark - grey ash rock, which interbeded with the conglomerate, sandstone, a little amount mudstone, oil shale with unconsolidated sand mud rock.
五道梁群以灰白色、灰黄色灰岩为主，含有砾岩、砂岩，夹有少量泥岩、油页岩和未固结砂泥沉积。
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