摘要
以地球化学分析为手段,对研究区万昌组—齐家组油气来源进行分析,并通过对已知油气藏的解剖,建立了2种不同种的成藏模式,进而对油气分布规律进行了归纳总结。研究表明,梁家构造带油、气分别来源于不同层位的烃源岩,烃类流体的类型由油源断层所沟通烃源岩成熟度差异性决定,而油气层的分布主要受优质扇三角洲前缘河口坝、席状砂储层发育情况控制。
The oil and gas sources in Wanchang-Qijia formation in the study area are analyzed by geochemical means.Two types of hydrocarbon accumulation models are established based on the study of the known reservoirs.The distribution of oil and gas in Wanchang and Qijia formation is also summarized.The research results indicate that the oil and gas in the Liangjia structural belt came from different source rocks.The types of hydrocarbon fluids depend on the maturity of the source rock connected by fault.The distribution of most oil and gas reservoirs is mainly controlled by the development of high quality mouth bar and sheet sand in fan delta front.
出处
《特种油气藏》
CAS
CSCD
2010年第4期31-34,共4页
Special Oil & Gas Reservoirs
基金
吉林油田公司科技项目"五星-梁家构造带浅层储层评价与油气分布规律"(20070418)
关键词
有机地球化学
油气分布
成藏机理
伊通地堑
organic geochemistry
oil and gas distribution
hydrocarbon accumulation mechanism
Yitong graben
