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在前人研究的基础上,以沉积学、天然气地质学、油气成藏地质学等理论作为依据,收录了研究区一百余口井的地质录井、测井资料以及物性分析、试气等资料,在对本溪组沉积特征、成岩作用、储层物性、微观孔隙结构等方面研究的基础上,分析并归纳了储层的控制因素。研究结果表明:本溪组气藏属于典型的岩性气藏,沉积特征与成岩作用控制的岩性差异是气藏富集的主控因素,对储层物性的好坏和气藏产能大小起到了决定性的作用;鼻状构造等因素对其油气的分布富集有一定的控制作用。
Based on the previous studies, based on the theories of sedimentology, natural gas geology and hydrocarbon accumulation geology, geological logging, well logging data, physical property analysis, test gas, etc. of over one hundred wells in the study area Based on the study of sedimentary characteristics, diagenesis, reservoir physical properties and microscopic pore structure of Benxi Formation, the controlling factors of reservoir are analyzed and summarized. The results show that the gas reservoirs in Benxi Formation are typical lithologic gas reservoirs. The lithology difference between sedimentary characteristics and diagenesis control is the main controlling factor for gas accumulation, which plays a decisive role in the reservoir physical properties and the gas reservoir productivity The role of nose structure and other factors on the distribution of oil and gas enrichment have a certain degree of control.