石油实验地质2018，Vol.40Issue(3)：362-371,10.DOI:10.11781/sysydz201803362
鄂尔多斯盆地马岭油田长81储层不同流动单元可动流体赋存特征及其影响因素
Characteristics of movable fluids and controlling factors in different flow units of Chang 81reservoir in Maling oil field, Ordos Basin
摘要
Abstract
The Chang 81reservoir of the Maling oil field in the Ordos Basin has low porosity and low permeability. The quality of oil and gas reservoirs is constrained by the strong heterogeneity of its permeability.We analyzed the characteristics of its microscopic pore structure by conducting an NMR experiment and microcosm experiments including constant speed mercury injection, high pressure mercury injection, image granularity, and casting lamella. We then divided the flow units into 4 classes E,G,M and P,using SPSS data analysis software on the basis of 5 chosen parameters, including sand thickness, porosity, permeability, oil saturation and flown zone exponent. We analyzed the microscopic pore structure characteristics in different types of flow unit and the impacts on movable fluid saturation. The results showed that there are obvious differences in the microscopic pore structure characteristics in different flow units, which are the main factors that caused different movable fluid saturation. The distribution and size of pore throat radius played a crucial role. Production performance data demonstrated that classes E and G acquired the highest capacity in the oil and gas field development. Reasonable and effective development programs should be implemented according to the microscopic pore structure characteristics of different flow units.关键词
流动单元/微观孔隙结构/可动流体/长81储层/马岭油田/鄂尔多斯盆地Key words
flow units/microscopic pore structure/movable fluids/Chang 81reservoir/Maling oil field/Ordos Basin分类
能源科技引用本文复制引用
黎盼,孙卫,闫健,高永利,折文旭,杜堃..鄂尔多斯盆地马岭油田长81储层不同流动单元可动流体赋存特征及其影响因素[J].石油实验地质,2018,40(3):362-371,10.基金项目
国家自然科学基金青年基金(51404197)、国家科技重大专项"大型油气田及煤层气开发"(2011ZX05044)和陕西省青年人才基金(2016JQ4022)联合资助. （51404197）
