靖安油田杨66井区延10储层非均质性及流动单元  

Heterogeneity and Flow Units of Yan 10 Reservoir in Yang 66 Wellblock of Jing’an Oilfield

作　　者：马永宁 魏龙杰 吴珍珍 何子琼 傅塬 郭艳琴 MA Yongning;WEI Longjie;WU Zhenzhen;HE Ziqiong;FU Yuan;GUO Yanqin(Department of Foreign Cooperation,PetroChina Changqing Oilfield Company,Xi’ an,Shaanxi 710018,China;College of Earth Sciences and Engineering/Shaanxi Key Laboratory of Petroleum Accumulation Geology,Xi’ an Shiyou University,Xi’ an,Shaanxi 710065,China;School of Architecture,Chengdu Jincheng College,Chengdu,Sichuan 611731,China)

机构地区：[1]中国石油长庆油田分公司对外合作部,陕西西安710018 [2]西安石油大学地球科学与工程学院/陕西省油气成藏地质学重点实验室,陕西西安710065 [3]成都锦城学院建筑学院,四川成都611731

出　　处：《西安石油大学学报（自然科学版）》2022年第4期1-9,共9页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项专题(2017ZX05005002-004);国家油气重大专项项目(2016ZX05046-002);国家自然科学基金重大项目(41390451,41330315);国家自然科学基金青年项目(41502107);地质矿产调查评价基金资助项目(121201011000150014);陕西省自然科学基础研究计划资助项目(2017JQ4018)。

摘　　要：通过岩心、分析化验、测井等资料分析,对鄂尔多斯盆地靖安油田杨66井区延10_(1)^(1)储层岩石学、物性及非均质性进行研究,通过对孔隙度、渗透率、储层质量因子I_(RQ)和流动带指数I_(FZ)的聚类分析对储层流动单元进行划分。研究结果表明:延10油层组储层碎屑组分中石英体积分数最高,为59%~62%,平均60.5%;胶结物主要为自生黏土矿物、碳酸盐矿物和硅质等;延10_(1)^(1)各小层内延10_(1)^(1-1)层内非均质性弱于延10_(1)^(1-2),延10_(1)^(1-1)层间非均质性较延10_(1)^(1-2)强,延10_(1)^(1-1)平面非均质性较延10_(1)^(1-2)弱;储层流动单元可划分为3种类型,延10_(1)^(1)的两个小层以Ⅱ类流动单元最为发育,也是油藏富集的一个重要流动单元,延10_(1)^(1-1)Ⅰ类流动单元呈零星分布,且大部分集中在东北部,Ⅲ类流动单元分布在中部以及南部和东北部边缘,延10_(1)^(1-2)Ⅰ类流动单元在东北部和南部部分地区,Ⅲ类流动单元集中在中部。The petrology,physical property and heterogeneity of Yan 10_(1)^(1) reservoir in wellblock Y66 of Jing’an oil field of Ordos Basin were studied by means of core observation,test and logging data analysis,and the flow unit of reservoir was divided through the cluster analysis of porosity,permeability,reservoir quality factor(I_(RQ))and flow zone index(I_(FZ)).The results show that the volume fraction of quartz in clastic components of Yan 10 oil reservoir is the highest,59%~62%,with an average of 60.5%.The cements are mainly authigenic clay minerals,carbonate minerals and siliceous minerals.In sublayers of Yan 10,the heterogeneity of Yan 10_(1)^(1-1) is weaker than that of Yan 10_(1)^(1-2),the interlayer heterogeneity of Yan 10_(1)^(1-1) is stronger than that of Yan 10_(1)^(1-2),and the plane heterogeneity of Yan 10_(1)^(1-1) is weaker than that of Yan 10_(1)^(1-2).TypeⅡof flow units are the most developed in the two sublayers of Yan 10_(1)^(1),which is also an important type of flow units for reservoir enrichment.Type I flow units in Yan 10_(1)^(1-1) are distributed sporadically,and most of them are concentrated in the northeast,while typeⅢflow units are distributed in the middle and the southern and northeastern edges.Type I flow units in Yan 10_(1)^(1-2) are located in the northeast and some areas in the south,and typeⅢflow units are concentrated in the middle.

关 键 词：储层非均质性 流动单元 靖安油田 鄂尔多斯盆地 

分 类 号：TE122[石油与天然气工程—油气勘探]