...词：油气成藏期次；流体包裹体；古生界；叠合盆地；临清坳陷；渤海湾盆地 [gap=2069]Key words: hydrocarbon accumulation stage, fluid inclusion, Paleozoic, superimposed basin, Linqing Depres- sion,the Bohai..
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不同构造带存在不同的油气成藏期次，因而油气分布在平面上及垂向上存在不均一性。
There are different pool-forming stages for different structural zones, resulting in the heterogeneity of oil-and-gas distribution both laterally and vertically.
渤海湾盆地埕岛油田油气成因与成藏较复杂，对成藏期次与时间一直存在疑问。
The Chengdao oilfield of the Bohaiwan Basin is characterised by complicated petroleum infilling history.
研究区火山岩发育，火山活动对油气成藏影响较大，但火山活动期次尚不明确。
The volcanic rocks in the study area are very developed, volcanic activity has larger influence on hydrocarbon accumulation, but activity times of volcanic remains unclear.
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