鄂尔多斯盆地伊盟隆起上古生界储层孔隙结构特征及评价  

PORE STRUCTURE AND EVALUATION OF UPPER PALEOZOIC RESERVOIRS AT YIMENG UPLIFT,ORDOS BASIN

作　　者：陈晞[1] 王明健[2,3,4] 孟祥君 朱晓青[2,4] 于婷 CHEN Xi WANG Mingjian MENG Xiangjun ZHU Xiaoqing YU Ting(North China Sea Branch of State Ocean Administration, SOA, Qingdao 266033, China The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China China Petroleum Pipeline Engineering Company Limited, Tianjin Design Institute, Tianjin 300457, China)

机构地区：[1]国家海洋局北海分局,青岛266033 [2]国土资源部海洋油气资源与环境地质重点实验室,青岛266071 [3]国家实验室海洋油气资源与探测技术功能实验室,青岛266071 [4]青岛海洋地质研究所,青岛266071 [5]中国石油管道局工程有限公司天津分公司,天津300457

出　　处：《海洋地质前沿》2017年第9期33-40,共8页Marine Geology Frontiers

基　　金：国家自然科学基金(41606079);山东省博士后创新项目专项资金(201201001);国土资源部海洋油气资源与环境地质重点实验室开放基金(MRE201223);中国地质调查局地质调查项目(GZH201400205)

摘　　要：储层是油气赋存的载体,其孔渗性能决定着后期油气开采难度以及可采数量。在众多影响储层孔渗性能的因素当中,储集层的孔隙结构发挥了关键的作用。通过对鄂尔多斯盆地伊盟隆起上古生界储层岩性以及孔渗参数进行分析,结果表明:石盒子组孔喉连通性及渗流性能最好,其次是山西组,太原组最差;依据压汞资料和毛细管压力曲线形态,孔隙结构类型可以划分为4类;通过孔渗资料统计分析,上古生界砂岩划分4类,并以Ⅱ类和Ⅲ类储层为主;砂体主要为冲积扇辫状水道砂体,曲流河、辫状河河道砂坝砂体以及三角洲平原分流河道砂体。研究结果可以为伊盟隆起区上古生界的油气开发提供依据。As the carrier of oil and gas,the porosity and permeability of a reservoir play a critical role in oil and gas exploitation and determine the recoverable amount of oil and gas,particularly in the later stage.Among many of the factors that affect reservoir physical properties,the pore structure is the key.In this paper,we studied the lithology and pore permeability parameters of the Upper Paleozoic reservoir at the Yimeng Uplift of Ordos basin.Results show that the Shihezi Formation is the best followed by the Shanxi Formation,and the Taiyuan Formation is the worst in terms of pore connectivity and flowing property.Pore structures there can be divided into four categories according to mercury injection data and capillary pressure curve.The upper Paleozoic sandstone is then divided into four classes dominated by class Ⅱ and Ⅲ reservoirs based on the statistical data of porosity and permeability.The reservoirs are mainly sand bodies formed in braided channels of alluvial fans,channel-mouth bars of meandering and braided rivers as well as the distributary channels of deltaic plains.The study results may help oil and gas development in the Upper Paleozoic of the Yimeng Uplift.

关 键 词：鄂尔多斯盆地 伊盟隆起 上古生界 储层 孔隙结构 

分 类 号：TE121.2[石油与天然气工程—油气勘探]