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马厂油田属于中渗复杂断块油藏,目前综合含水已达92.01%,处于高含水开发阶段,为了进一步实现老油藏的持续稳产,不同类型油藏的剩余油认识是关键,尤其是厚油层层内隔层的类型及空间分布特征不清,隔夹层对油气运移、水淹级别的影响缺乏了解,导致剩余油分布和流体性质变化规律认识不明确。从近两年剩余油监测资料运用效果表明,油藏在开发中后期剩余油分布认识跟生产实际差距较大,严重制约着油藏开发。
Machang Oilfield belongs to the complex permeability fault block reservoir. At present, the integrated water content has reached 92.01%, which is in the stage of high water cut. In order to further realize the stable production of the old reservoirs, the understanding of remaining oil in different types of reservoirs is the key, especially the thick The types and spatial distribution characteristics of the interlayer in the reservoir are not clear, and the effect of the intercalation on the hydrocarbon migration and flooding level is poorly understood. As a result, the understanding of the remaining oil distribution and the variation of fluid properties is not clear. The application results of remaining oil monitoring data in the past two years show that the understanding of remaining oil distribution in the middle and late stages of development is far from actual production and seriously restricts reservoir development.