关键词：
渝东;成岩作用;孔隙演化;储层特征;灯影组
摘 要：
通过对宜昌莲沱上震旦统灯影组的野外剖面踏勘观察描述,研究地层分布及沉积发育特征。渝东彭水廖家槽灯影组剖面主要为一套潮坪环境沉积的白云岩,共划分为3个岩性段、4个三级旋回层序;区内灯影组储集岩以晶粒白云岩、藻纹层云岩和残余砂屑、鲕粒云岩为主。并以野外踏勘观察为基础讨论了储层发育特征、有利储层类型,找出储层发育的控制因素及分布规律,预测储层发育的有利地带。得出储集空间类型主要有:晶间溶孔、溶洞、裂缝等,属于白云岩储层和古岩溶型碳酸盐岩储层。以此为基础预测出该相带控制的研究区的物性特征较好,储层类型较好。
译 名：
Reservoir Characteristics of Dengying Formation in Liaojiacao Eastern Chongqing
作 者：
ZHANG Lin,LI Jian-ming (Yangtze University,Jingzhou 434023)
关键词：
diageneses;porosity evolution;reservoir characteristics;Dengying Formation;Eastern Chongqing
摘 要：
According to the exploriation of the Yichang-Liantuo-Dengying Upper Sinian sedimentary strata distribution and development characteristics;Liaojiacao Dengying Group,Pengshui Yudong,which are sections mainly in tidal-flat environment,dolomite deposits were mainly divided into three lithologic,four third-class cyclic sequences.Region Dengying reservoir rock mainly take grain dolomite,algal laminae dolomite and residual sand debris,oolites dolomite.We use them as basis for discussing the characteristics of reservoir development,favorable reservoir types,reservoir development and distribution of the controlling factors to predict favorable reservoir development area.The reservoir space types are:intergranular dissolution holes,caves,cracks,etc.which belong to dolomite reservoir layer and ancient karst carbonate reservoir.We use them as basis for discussing to identify reservoir development and distribution of the controlling factors to predict favorable reservoir development area.
