红井子地区长9_1油藏储层特征研究与评价  

Research and evaluation of the Chang9_1 reservoir characteristics in Hongjingzi region

作　　者：白旭[1] 陈守民[1] 周兵[1] 李化斌[1] 徐宁[1] 

机构地区：[1]中国石油长庆油田分公司第三采油厂,宁夏银川750006

出　　处：《石油化工应用》2012年第3期74-78,共5页Petrochemical Industry Application

摘　　要：根据钻井、测井及分析鉴定资料,红井子地区长91砂岩储层的岩石学特征复杂,岩屑及填隙物较多,成岩作用类型多样,孔隙结构类型以粒间孔为主,其次为长石溶孔,少量浊沸石溶孔和岩屑溶孔,属于低孔-低渗储层。砂岩碎屑成分、粒度大小、沉积微相、成岩作用是影响储层物性的主要因素。通过对红井子地区长91储层孔隙度、渗透率、饱和度以及砂体厚度4个参数进行聚类分析,并结合铸体薄片、岩心观察及试油的结果,建立了红井子地区长91储层综合分类标准,最终优选长91油气聚集的有利储层类型。According to the drilling, logging and analysis of identification information,in Hongjingzi region,Chang91 sandstone reservoir have complex rock characteristics： With more rock debris and interstitial material , various types of diagenesis, the pore structure of the main types of intergranular pores as, followed by feldspar dissolution pores, a small amount of laumontite dissolution pores and debris dissolved pore,it is the low porosity - permeabili- ty reservoir. Sandstone detrital composition, grain size, sedimentary micro-facies, diagenesis is the main factor to affect the reservoir properties. By analyzing of the degree of red well sub-region chang91 reservoir porosity, permeability, saturation, and the thickness of the sand body four parameters, and combined with the results of casting thin sections, the core obser- vation and testing oil, we established classification criteria of the chang91 reservoirs. Through the above research, we optimized favorable reservoirs of chang91 oil and gas accumulation.

关 键 词：岩石类型 成岩作用 孔隙结构 储层物性 储层评价 

分 类 号：TE311[石油与天然气工程—油气田开发工程]