摘要
川东北地区飞仙关组飞三段主要发育鲕粒滩储层,以白云岩和鲕粒灰岩为主,储集空间包括晶间孔、粒间溶孔、鲕模孔、晶间溶孔、粒间溶孔、裂缝及溶缝等,储集类型有孔隙型、裂缝-孔隙型和裂缝型。鲕滩储层及其物性分布的不均一性不利于鲕滩油气藏的勘探和开采,因此了解飞仙关组鲕滩储层储集性能的影响因素有利于川东北地区鲕粒岩储层的下一步研究。研究表明,沉积相、岩性特征和成岩作用是鲕滩储层分布的主控因素。
The third segment of Feixianguan formation in northeast of Sichuan grows ooid beach, and the most of the lithology consists of dolostone and ooid limestone. The reservoir spaces include intercrystalline hole, intergranular solution opening, oomold hole, intercrystalline solution opening, crack and corrosive crack. The types of reservoir comprise void - type, crack - void - type and crack - type. The character of inhomogeneity in the reservoir of ooid beach and its physical property are unfavorable to exploration and exploitation of ooid oil and gas accumulation. Therefore, understanding that what affects reservoir performance of feixianguan formation will benefit the following study of ooid reservoir in the northeast of Sichuan. The research shows that sedimentary facies, ithologic character and lithogenesis are the leading dominant factors of ooid reservoir distribution.
出处
《新疆石油学院学报》
2004年第4期9-13,共5页
Journal of Xinjiang Petroleum Institute
关键词
川东北
飞仙关组
鲕粒滩
沉积相
成岩作用
northeast of Sichuan
feixianguan formation
ooid beach
sedimentary facies
lithogenesis
