• 责任者：Xu Hui (School of Geosciences ; China University of Petroleum ; Qingdao 266580 ; China) ; Lin Chengyan
• 刊名：Journal of China University of Petroleum
• 出版年：2013
• 卷期：37(2)
• 关键词：砂体 ; sand bodies ; 剩余油 ; remaining oil ; 松辽平原 ; Songliao Plain
• 页码：p.14-20,35
• 图表：illus., 4 tables, 16 refs.
• 分类号：1003
• issnNo：ISSN1673-5005
• isbnNo：CN37-1441/TE

Based on the analytic hierarchy process, the hierarchy and planar distribution characteristics of single sandbody of Pu I oil group in Putaohua reservoir of Shengping Oilfield were studied. Then the remaining oil distribution, influencing factors and the potential tapping measures were researched by using reservoir engineering analysis and numerical simulation. The results show that the single sandbody is equal to compound channel sandbody hierarchy, and could be divided into flaky form, cross-cutting banded form and isolated banded form. The width and thickness of single sandbody successively reduce. The more contiguous the sandbody and the greater the thickness, the more seriously the plane heterogeneity and sedimentary rhythm influences remaining oil distribution. The more scattered the sandbody and the smaller the thickness, the more seri- ously uncompleted well pattern influences remaining oil distribution. The potential tapping measures are as follows. The well pattern of flaky form single sandbody could be adjusted into five-spot water flooding pattern, with cross-cutting banded form single sandbody ,the branched channel sands inject water, the cross-cutting areas product oil. The well pattern of isolated banded form single sandbody could be scattered and crossed water flooding pattern. The water injection mode could be adjus- ted into cyclic waterflooding and the production wells could be enlarged the drawdown pressure. Injectors in poor sands could be acidified and producers in poor sands could be fractured.