综合运用动态监测资料确定单砂体剩余油

阐述了综合运用动态监测资料确定单砂体剩余油分布规律的方法.该方法涉及2个关键技术,一是产量劈分技术;二是剩余油分布技术.产量劈分技术很好地解决了水驱砂岩油藏高含水后期产量劈分的问题,该项技术充分利用了动态监测资料,与常规方法相比,具有与油藏开发资料结合更紧密、与油田实际更接近的特点;剩余油分布技术选用随机建模技术中的模拟退火方法和非结构网格化技术(PEBI网格),这两项技术更好地刻画了非均质储层和定量评价储层特征空间分布的不确定性,提高了模拟计算的精度与速度.实践证明,用该方法计算的结果与油田实际情况非常接近.

Determination of Residual Oil in Individual Sand Body with Dynamic Monitoring Data

Expatiated is the method for distribution rule of residual oil in individual sand body with synthesis dynamic monitoring data.This method involves two essential technologies.One is the output-dividing technology,another is distributing technology of the residual oil.The first can better solve the problem of output-dividing in the sandstone reservoir with water flooding in the later high bearing water period.This technology has fully used the performance monitoring information and has an advantage of being closer with the reservoir development information and oilfield actual characteristics than conventional methods.The remaining oil distribution technology selects the simulation anneal method and the non-structured grid technology(the PEBI grid) in the stochastic modeling technology.These two technologies have better described the anisotropic reservoir,quantitatively evaluated the uncertainty of the reservoir characteristic spatial distribution,increased the precision and speed of analog computation.Practice shows the results extremely approximate with the actual situation of oilfield.