多学科集成研究复杂断块油藏剩余油分布--以濮城油田东区沙二上4-7为例

濮城油田东沙二上4-7是一个复杂断块油藏,投产以来一直存在层间干扰严重,水驱程度低的问题.为进一步深入认识濮城油田东沙二上4-7,在研究过程中运用了多学科集成研究的工作方法,根据该油藏动静态资料,进行了精细油藏描述,并在此基础上开展油藏数值模拟研究,确定出该区块的剩余油分布,为下一步方案实施提供了依据.研究结果表明:平面上,剩余油潜力主要集中在井间未动用的部位、构造高部位以及曾经动用过但水淹不是太严重且有效厚度较大的部位,而构造低部位水淹严重;纵向上,剩余油主要集中在动用相对较差的二、三类层,砂体发育较好的层位水淹严重.

Integrated Research on the Distribution of Remaining Oil in Multi-Fault Reservoirs

Pucheng Oilfield is a multi-fault reservoir, and its heterogeneityresulted in the problems such as the interference between different formations and low flooding efficiency. In order to achieve the distribution of remaining oil, we integrated the related subjects and information, which proved to be a better way to solve the problems and built the geological model of the oilfield. Based on these work, reservoir simulation was implemented and achieved the distribution of the remaining oil. The results show that, in the view of plane, the remaining oil is mainly in the high place of reservoir and no water-flooded place, and in the point of vertical, mainly in the place of low-qualityformation.