川东北飞仙关组沉积控储机理研究  

Controls of sedimentation on reservoir formation in Lower Triassic Feixianguan Formation,northeastern Sichuan Basin.

作　　者：张学丰[1] 赫云兰[1] 马永生[2] 刘波[1] 赵培荣[2,3] 高计县[1] 杨云坤[1] 

机构地区：[1]北京大学石油与天然气研究中心 [2]地球与空间科学学院,北京100871 [2]中国石油化工股份有限公司油田勘探开发事业部,北京100728 [3]中国地质大学(北京),北京100083

出　　处：《地学前缘》2011年第4期224-235,共12页Earth Science Frontiers

基　　金：国家自然科学青年基金项目(41002029);中国博士后研究基金项目(20100470162)

摘　　要：在礁滩型碳酸盐岩储层中,沉积对储层发育的控制作用至关重要。以川东北普光和元坝地区的下三叠统飞仙关组台地边缘浅滩相储层为例,在沉积背景及其演化分析的基础上,研究了飞仙关组沉积亚相及微相发育特征,划分并描述了典型钻井储层高频旋回,讨论了层序演化对储层发育的控制作用,高频旋回发育及其与孔隙发育的相关性、相对海平面变化与储层非均质性的关系,以及沉积、成岩环境对储层早期孔隙发育的控制作用。Sedimentation is one of the key controlling factors in the formation of the reef and shoal carbonate reservoirs.This research studied the Lower Triassic Feixianguan shoal reservoir of marginal carbonate platform facies in the Puguang and Yuanba area,northeastern Sichuan Basin.The sedimentation background and its evolution history were studied before the microfacies analyses were conducted.The high-frequency cycles were divided and described based on drilling well data.The controls of stratigraphic sequences on reservoir formation,high-frequency cycles on porosity distribution,relative sea level fluctuation on reservoir heterogeneity,as well as early depositional and diagenetic environment on early porosity formation were discussed.

关 键 词：沉积相 高频旋回 储层形成 飞仙关组 川东北 

分 类 号：TE122.221[石油与天然气工程—油气勘探]