莫北油田三工河组储层非均质性研究  

Researching on reservoir heterogeneity in Sangonghe of Mobei oilfield

作　　者：齐婷婷[1] 齐新陇 

机构地区：[1]西南石油大学研究生院,四川成都610500 [2]喀什市发展和改革委员会,新疆喀什844000

出　　处：《石油化工应用》2013年第10期48-52,共5页Petrochemical Industry Application

基　　金：国家"973"规划项目;项目编号:2011CB403002;2011CB403005

摘　　要：莫北油田三工河组为本区的主要目的层段。通过铸体薄片、储层物性及扫描电镜等资料对储层特征进行分析,研究结果表明:储集砂岩主要为不等粒岩屑砂岩和细-中粒岩屑砂岩,其中岩屑以凝灰岩为主;研究层段砂岩总体物性属中-低孔、低-特低渗储集层;储层喉道的典型特征是大喉道发育,且不同渗透率级别的岩样喉道半径大小及分布规律差异大。并对宏观的层内非均质性、层间非均质性及平面非均质性这些方面进行研究发现,三工河组三角洲沉积的储层中夹层主要有3类:泥岩夹层、泥质夹层,致密夹层。研究目标区的夹层较为发育,非均质较为严重。物性的平面展布亦反映出水下分流河道沉积的长条带状,水下分流河道中心微相物性要明显好于河道边缘及道间沉积,总体来看储层物性参数平面非均质较强。Sangonghe of Mobei oilfield is the the main purpose of the interval.Though the da- ta from cast thin section,reservoir properties,and logging data analysed reservoir characteris-tics.The results show that sandstone reservoir are mainly ranging from lithic sandstone and fine grain-medium-grained lithic sandstone, the cuttings is given priority to with tuff.Re- search zone sandstone - in the overall property belongs to low porosity, low - low permeabil- ity reservoir.Reservoir throat are the typical features of big throat development, and different penetration levels of throat radius size and distribution of big differences.And the inner lay- ers of the macroscopic heterogeneity, interlayer heterogeneity and plane heterogeneity study found these aspects,there are three main categories in mezzanine of Sangonghe delta reser-voir： intercalation,argillaceous interlayer, dense intercalation.The research areas develop much sandwich,and heterogeneity is serious.Plane distribution of physical properties also reflects underwater distributary channel channel between the edge and

关 键 词：微观非均质性 层内非均质性 层间非均质性 平面非均质性 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]