摘要
油藏中高含水期剩余油分布受多种因素影响。受先天条件制约,小断块油藏影响剩余油的因素更加复杂。为指导小断块油藏中高含水期的剩余油调整挖潜,在分析剩余油影响因素的基础上,运用灰色关联法分析计算了各因素对剩余油分布影响的关联度,确定了小断块油藏中高含水期剩余油分布的主控因素,为小断块油藏中高含水期的剩余油调整挖潜提供了重要指导。高含水小断块油藏Z11E_2s_1^(4、5)通过应用灰色关联法确定剩余油主控因素,采取以剩余油挖潜为中心的优化调整,取得了日产油上升、含水下降和采收率提高4.6%的良好效果。
During the high water-cut period, the residual oil distribution is influenced by many factors. Especially for the small faults with congenital inadequacy, the factors are more complicated. In order to realize the adjustment and exploration of the residual oil, based on the analysis of the influence factors, the grey relation degrees between different factors have been calculated by the grey relation theory, and the main controlling factors of small fault block reservoir in the high water-cut period have been obtained,which provided important guilds to the adjustment and the potential tapping for the residual oil of a small fault block reservoir with high water-cut. The main controlling factors of the typical reservoir Z11E_2s_1^(4、5) have been obtained by the grey relation analysis, and through the optimization of the adjustment and exploration of the residual oil, its development effect has been improved apparently,the day oil production has risen, the water-cut has declined and the oil recovery has increased 4.6 %.
出处
《油气藏评价与开发》
CSCD
2017年第5期32-37,共6页
Petroleum Reservoir Evaluation and Development
关键词
小断块油藏
剩余油
主控因素
灰色关联
开发效果
small fault block reservoir
residual oil
main controlling factors
grey relation
development effect
