镇泾地区红河101井区长8段储层特征研究  

Reservoir Characteristics of Chang-8 Member in Red River 101 Well Area in Zhenjing Oilfield,Ordos Basin

作　　者：王林琪[1,2] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]成都理工大学"油气藏地质及开发工程"国家重点实验室,四川成都610059

出　　处：《四川文理学院学报》2016年第2期20-27,共8页Sichuan University of Arts and Science Journal

摘　　要：鄂尔多斯盆地镇泾地区红101井区的延长组长8油层组是该区域的主力油层之一,其主要岩性为灰色岩屑长石砂岩,还有浅灰色色长石岩屑砂岩.通过一系列实验数据分析,喉道类型以弯片状、片状以及缩颈型为主,整体储集体的空间类型主要是次生溶蚀粒间孔,孔喉结构共发育以中排驱压力-较细喉道型为主,从理论上可定义为具有代表性的特低孔特低渗储层.该地区长8油层组砂岩储层特征先期受到沉积作用影响,之后是受到成岩作用的主要影响.The Chang 8 sandstones in Red River 101 well area in Zhenjing area of Ordos Basin, occurring as one of the major reservoirs,mainly consist of gray feldspathic litharenite and lithicarkose. They belong to extra- low porosity and permeability reservoirs, with dissolved intergranular pores as the chief accumulation space,and the reduced- neck, lamellar and curved lamellar pore throat as the main throat type. Based on the pattern of capillary pressure curve, porosity, permeability, displacement pressure and pore throat radius, the Chang 8 sandstones can be classified as different types, in which the medium displacement pressure-smaller throat type are the main reservoirs. There are two main factors affecting the reservoir characteristics of Chang 8 sandstones：sedimentary processes, diagenesis.

关 键 词：沉积相 控制因素 储层特征 长8油层组 镇泾油田 

分 类 号：TE14[石油与天然气工程—油气勘探]