致密砂岩三元孔喉结构特征:以鄂尔多斯盆地三叠系延长组7段致密砂岩为例OA北大核心CSTPCD
Ternary pore structure characteristics of the tight sandstone:a case study from the Chang 7 Member of the Triassic Yanchang Formation in the Ordos Basin,China
致密砂岩的孔隙结构特征对于致密油藏的勘探开发至关重要,然而,目前有关不同尺度孔隙形态特征差异的研究较少,给致密油藏的勘探评价带来了较大挑战.为此,本文利用铸体薄片、扫描电镜、压汞测试分析鄂尔多斯盆地三叠系延长组7段致密砂岩孔隙结构特征.研究结果表明:致密砂岩具有由复合孔隙、颗粒孔隙和晶间孔隙组成的三元孔隙结构特征.复合孔隙结构为刺球模型,其半径大,连通性强;颗粒孔隙结构为羽毛球模型,其孔隙半径和连通性处于中等水平;晶间孔隙结构为颗粒填充的包络面,…查看全部>>
The analysis of pore structure characteristics in the tight sandstone is crucial for the exploration and development of tight oil reservoirs.However,there are few studies on the differences of pore morphological characteristics at different scales,which poses great challenges to the exploration and evaluation of tight reservoirs.Thus,casting thin sections,scanning electron microscopy and mercury intrusion tests were employed to examine the pore structure cha…查看全部>>
王伟;朱玉双;梁正中
榆林学院化学与化工学院,陕西榆林,719000西北大学地质学系,陕西西安,710069榆林学院化学与化工学院,陕西榆林,719000
地质学
致密砂岩孔隙结构分形鄂尔多斯盆地
tight sandstonepore structurefractal dimensionOrdos Basin
《中南大学学报（自然科学版）》 2024 (4)
1361-1373,13
国家自然科学基金资助项目(42062011,42362023)陕西省教育厅青年项目(22JK0630)陕西省科技厅一般项目(2023-JC-QN-0347)中国科学院洁净能源创新研究院-榆林学院联合基金资助项目(YLU-DNL Fund 2022012)(Projects(42062011,42362023)supported by the National Natural Science Foundation of ChinaProject(22JK0630)supported by the Department of Education of Shaanxi ProvinceProject(2023-JC-QN-0347)supported by the Department of Science and Technology of Shaanxi ProvinceProject(YLU-DNL Fund 2022012)supported by the Joint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy,CAS)
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