摘要
为了进一步提高注入剂驱油效率以及准确预测储层中剩余油在三维空间的分布,以大庆油田葡萄花油层组PⅠ2小层曲流河道砂体为例,通过对曲流河道砂体内部薄夹层构形及渗透率垂向分布的差异性分析,在排除开发因素差异的同井单砂体分析条件下,提出了单砂体内部薄夹层空间构形、渗透率垂向序列与重力因素共同控制剩余油分布、驱油效率多段垂向序列模式。
In order to improve oil displacement efficiency of infusing agents and precisely to predict the three dimensional distribution about residual oil, taking the sand body of PⅠ2 individual meandering river-channel in Putaohuareservior of Daqing Oilfield as an example, by analyzing the thin interbeds and vertical permeability discrepancy, this paper brings forward the space configuration of the thin interbeds in single sand body, the vertical permeability distribution and gravitational differentiation which control the distribution of residual oil and the vertical multisection model of displacement efficiency in the condition of excluding exploitation factors and identical single sand-body.
出处
《地球科学与环境学报》
CAS
2007年第2期170-173,191,共5页
Journal of Earth Sciences and Environment
基金
大庆油田公司项目(12010022002100330)
关键词
剩余油
薄夹层构形
驱油效率
渗透率垂向差异性
重力分异
曲流点坝
residual oil
configuration of thin interbeds
oil displacement efficiency
vertical permeability discrepancy
gravitational differentiation
point bar of meandering