普光气田普陆1井须家河组砂岩储层研究  

Characteristics of Sandstone Reservoir in Xujiahe Formation of Well PL-1 in Puguang Gas Field

作　　者：路遥[1,2] 尹太举[1,2] 唐群英[1,2] 

机构地区：[1]油气资源与勘探技术教育部重点实验室 (长江大学) [2]长江大学地球科学学院,湖北荆州434023

出　　处：《长江大学学报（自然科学版）》2011年第10期26-29,275,共4页Journal of Yangtze University(Natural Science Edition)

摘　　要：利用储层岩矿分析技术,结合地质录井资料,对普陆1井砂岩储层的岩石学特征、孔隙类型、物性特征进行了研究,并对储层进行了综合评价。研究发现,该井砂岩储层物性较差,为低孔低渗、超低孔超低渗储层,储层孔隙类型主要以次生孔隙为主,发育较多构造裂缝,但多被方解石、石英充填,储层以Ⅱ类较好储层和Ⅲ类差储层为主,储层早期强烈压实使得原始孔隙难于保存,而后期胶结物的大量发育,孔隙喉道堵塞后导致的流体流动性降低阻碍了溶蚀作用的发育,这是导致储层致密原因。This paper uses reservoir lithology and mineral analysis technique and combines with log data to study the rock characteristics,pore type and physical property of Well PL-1 and performs a comprehensive evaluation of reservoirs.The results indicate that the physical property of sandstone reservoir is low porosity and permeability,extreme-low porosity and permeability;the reservoir pore type of the sandstone mainly is secondary pore,structural fractures are well developed,but they are filled by calcite and quartz.The reservoir mainly develops 2 types of good reservoirs and 3 types of poor reservoirs,early compactions on reservoirs,original pores are hard to be preserved,fluid mobility caused by blockage of pore constriction slows down the speed of dissolution,which are the reasons of tight reservoirs.

关 键 词：普光气田 须家河组 砂岩 储层 

分 类 号：P618.13[天文地球—矿床学]