鄂尔多斯盆地魏家楼区块长6储层特征  

Chang6 Reservoir Properties of Weijialou Block in Ordos Basin

作　　者：黎力[1,2] 李翔龙 黄贤良[2] 王强[4] 汤天国 

机构地区：[1]西安石油大学地质工程,陕西西安710000 [2]延长油田股份有限公司化验中心,陕西延安716000 [3]中国石油大学石油工程,北京100000 [4]延长油田股份有限公司子长采油厂,陕西延安716000 [5]延长油田股份有限公司七里村采油厂,陕西延安716000

出　　处：《辽宁化工》2015年第6期690-693,共4页Liaoning Chemical Industry

摘　　要：长6储层是魏家楼地区的主力产油层,储层物性差,注水开发见水快,开发难度大。为弄清地层见水快、油井含水高的原因,利用利用扫描电镜、铸体薄片和压汞试验方法,研究地层微观结构、储层孔喉分布、储层物性、岩石学特征和储层润湿性。结果表明:长6油藏属低孔超低渗油藏;储层以细-中粒长石砂岩为主;孔隙填隙物以绿泥石为主,绿泥石的垂直孔壁生长模式是储层低孔、低渗的主要原因;岩心主要为若亲水岩心;根据岩心压汞曲线特征,将储层孔隙机构分为三类。In order to further study the characteristics of Chang6 formation-the main reservoir of Weijialou block, the core samples from this block were analyzed by the means of SEM, casting thin section and mercury injection experiment. The physical properties, lithology, structure, pore and throat were studied. The results show that Chang6 formation belongs to low-pore ultralow-permeability formation, and the rock is fine-medium grained feldspar sandstone. Chlorite is the most common composition of interstitial materials, and its growth pattern causes the small pore throat and the low permeability. These pore throat can be divided into three types by analyzing mercury injection data.

关 键 词：鄂尔多斯盆地 魏家楼 长6储层 储层特征 

分 类 号：TE122[石油与天然气工程—油气勘探]