海洋地质前沿2017，Vol.33Issue(9)：33-40,8.DOI:10.16028/j.1009-2722.2017.09005
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
摘要
Abstract
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Key words
Ordos Basin/Yimeng Uplift/Upper Palaeozoic/reservoir/pore structure分类
能源科技引用本文复制引用
陈晞,王明健,孟祥君,朱晓青,于婷..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[J].海洋地质前沿,2017,33(9):33-40,8.基金项目
国家自然科学基金(41606079) （41606079）
山东省博士后创新项目专项资金(201201001) （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) （MRE201223）
中国地质调查局地质调查项目(GZH201400205) （GZH201400205）
