摘要
博乐盆地及其周边地区存在四套生油层系，为石炭系生油岩、下二叠统生油岩、上二叠统生油岩和下、中侏罗统生油岩。石炭系生油岩在全盆地分布广泛，为基底生油岩，已处于高成熟—过成熟阶段，生油潜力很小，对盆地生油贡献甚微；下二叠统生油岩，处于成熟—高成熟阶段，为现实烃源岩；盆地南缘南山煤矿一带，曾是晚二叠世的凹陷区（其凹陷局限），上二叠统生油岩已成熟；盆地西北缘的中、下侏罗统生油岩处于未成熟—低成熟阶段，为潜在烃源岩。据钻井、地震资料证实，盆地缺失上二叠统生油岩。只有下二叠统和下。
There are 4 oil source horizons which are Carboniferous,Lower permian ,Upper Permian and Lower Middle Jurassic in Bole basin and its adjacent regions.The Carboniferous source rock is widely distributed in the basin.It belongs to basemental source rock and a high overmaturated stage.the oil generating potential is quite small and contribute little to the basin .The Lower Permian source rock is in a maturated high maturated stage,it′s the current oil source rock.At the south margin of the basin and around Nanshan Coal Mine ,where used to be a depression of Late Permian,the Upper Permian source rock has become maturated.The Middle Lower Jurassic source rock distributed in the northwest margin of the basin is in a under matarated low maturated stage ,it is the potential oil source rock.Based on the drilling and seismic data ,there is no Upper Permian sourec rock in the basin,only Lower Permian and Lower Middle Jurassic contribute the basin with oil source rock.
出处
《新疆地质》
CAS
CSCD
1999年第1期42-49,共8页
Xinjiang Geology
关键词
博乐盆地
生油岩
有机质丰度
有机质成熟度
Bole basin \ oil source rock abandance of organic matter \ maturity of organic matter
