摘要
针对孤岛油田馆陶组第五砂层组稠油环蒸汽吞吐中后期的油藏特点 ,通过水侵方式分析及油藏数值模拟综合研究 ,指出了平面上剩余油主要富集在受水侵影响较弱的热采区中部及对角井间 ,纵向上强水侵区域油层上部及弱水侵区域油层下部剩余油较富集的规律。在此基础上制定的井网加密调整和水侵综合治理等挖潜措施 ,矿场应用效果较好。
According to the features of Ng5 heavy oil rim reservoir of Gudao oilfield in middlelate period of steam stimulation, the way of water encroachment is analyzed and numerical simulation of oil reservoir is studied synthetically. It is pointed out that remaining oil in plane mainly enriched in the middle of thermal recovery region where the effect of water encroachment is weak and also between the diagonal well. In the vertical, it enriched at upper part of oilbearing formations with strong encroachment and at lower part of oilbearing formations with weak encroachment. The measures of tapping potential include pattern infilling and modification, integrated treatment on water encroachment and so on, which are worked out based on the mentioned distribution rule of the remaining oil. Good result is achieved after the field application.
出处
《油气地质与采收率》
CAS
CSCD
2003年第1期65-67,共3页
Petroleum Geology and Recovery Efficiency
关键词
孤岛油田
稠油环
热采
中后期
剩余油分布规律
水侵方式
蒸汽吞吐
heavy oil rim, steam stimulation, remaining oil distribution, way of water encroachment, Gudao oilfield
