Based on a synthetical analysis of basin type, gas origins and gas prone sag evolution, Bohai Sea is considered as an oil dominant basin, where most gas is from oil type and terrigenous source rocks.
在综合分析盆地类型、天然气成因和富气凹陷形成条件的基础上，认为渤海海域是一个相对以油为主的油气区，天然气以油型气和陆源有机气为主，天然气藏可能以中、小型为主。
Reservoir in Maliang sag which is the main oil producing area in Santanghu basin of Tuha oilfield is typical low permeable fracture type reservoir.
马朗凹陷是吐哈油田三塘湖盆地的主要产油区，属典型的低渗裂缝性油藏。
The subtle traps of lithological type and stratigraphic type are found in Taibei sag of Turpan-Hami basin.
台北凹陷隐蔽圈闭的主要类型为岩性型和地层型。
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