辽河坳陷西部凹陷坡洼过渡带岩性油气藏形成条件
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摘要
辽河坳陷西部凹陷构造油气藏勘探的难度日益增大。分析西部凹陷中南段坡洼过渡带的沉积体系、油源体系、输导体系及油藏封盖体系,认为坡洼过渡带具备形成大规模岩性油气藏的地质条件,可作为下一步勘探的主攻方向之一。在该思路指导下,综合应用测井、地质与地震资料,在坡洼过渡带实施勘探后,陆续发现了欢103、齐231、锦306等岩性油气藏,建成了亿吨级优质油气储量区块,展示了坡洼过渡带良好的勘探前景。图6参10
The structural hydrocarbon reservoir exploration is becoming more harder in the western Liaohe Depression.It was proved that the transition zone of slope and depression has the geologic conditions of forming a large-scale lithologic reservoir by analyzing the sedimentary system,oil sources,transport system and sealing system.It could be the main direction in the future exploration.Following this cognition and by synthetically using log,geological and seismic data,Huan 103,Qi 231 and Jin 306 traps have been found as the lithologic reservoirs,showing a great exploration potential.
The structural hydrocarbon reservoir exploration is becoming more harder in the western Liaohe Depression.It was proved that the transition zone of slope and depression has the geologic conditions of forming a large-scale lithologic reservoir by analyzing the sedimentary system,oil sources,transport system and sealing system.It could be the main direction in the future exploration.Following this cognition and by synthetically using log,geological and seismic data,Huan 103,Qi 231 and Jin 306 traps have been found as the lithologic reservoirs,showing a great exploration potential.
引文
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[3]李宏伟,朱怡翔,李胜利,等.辽河西部凹陷北部地区隐蔽油气藏预测与成藏机制分析[J].石油勘探与开发,2003,30(1):44-46.(LI Hong-wei,ZHU Yi-xiang,LI Sheng-li,et al.Prediction ofsubtle hydrocarbon reservoirs and pool-forming mechanism,northern part of Western Sag,Liaohe Region[J].PetroleumExploration and Development,2003,30(1):44-46.)
[4]廖兴明,于天欣,时林春,等.辽河盆地构造演化与油气[M].北京:石油工业出版社,1996.(LIAO Xing-ming,YU Tian-xin,SHILin-chun,et al.The Evolvement of conformation and oil&gas inLiaohe Basin[M].Beijing:Petroleum Industry Press,1996.)
[5]单家增,张占文,肖乾华.辽河坳陷古近纪两期构造演化的构造物理模拟实验[J].石油勘探与开发,2004,31(3):14-17.(SHANJia-zeng,ZHANG Zhan-wen,XIAO Qian-hua.Modelingexperiments of two-phase structural evolution in the LiaoheDepression,Paleogene[J].Petroleum Exploration andDevelopment,2004,31(3):14-17.)
[6]杜栩,郑洪印,焦秀琼.异常压力与油气分布[J].地学前缘,1995,2(3-4):137-148.(DU Xu,ZHENG Hong-yin,JIAO Xiu-qiong.Abnormal pressure and hydrocarbon accumulation[J].EarthScience Frontiers,1995,2(3-4):137-148.)
[7]陈发景,田世澄.压实与油气运移[M].武汉:中国地质大学出版社,1989.(CHEN Fa-jing,TIAN Shi-cheng.Compaction andmigration of oil&gas[M].Wuhan:China University ofGeosciences Press,1989.)
[8]张立新,李军,刘淑芝,等.试析歧北凹陷异常压力在深层油气藏成藏过程中的控制作用[J].石油勘探与开发,2000,27(5):19-21.(ZHANG Li-xin,LI Jun,LIU Shu-zhi,et al.The control ofabnormal pressure on deep oil/gas pool formation in Qibei Sag[J].Petroleum Exploration and Development,2000,27(5):19-21.)
[9]张占文,陈振岩.辽河盆地天然气地质[M].北京:地质出版社,2002.(ZHANG Zhan-wen,CHEN Zhen-yan.The gas geology inLiaohe Basin[M].Beijing:Geological Publishing House,2002.)
[10]陈振岩,苏晓捷.辽河西部凹陷船舱式油气运聚系统特征初探[J].石油勘探与开发,2003,30(4):1-4.(CHEN Zhen-yan,SUXiao-jie.Cabin-type oil and gas migration characteristics ofWester Sag,Liaohe Depression[J].Petroleum Exploration andDevelopment,2003,30(4):1-4.)
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