复杂断块油藏剩余油精细表征技术研究——以利津油田为例

Technical study on the fine characterization of remaining oil for fault block reservoirs—an example from Lijin oilfield

针对断块油藏储层特征,在精细油藏地质模型建立的基础上,开展了百万节点规模的整体数值模拟研究。利用编制的数值模拟前处理接口软件,实现了地质模型到数值模拟模型的保真转换;建立了历史拟合的量化标准,形成了调参约束机制,达到了高精度历史拟合;利用油藏数值模拟后处理软件,对剩余油的定量计算和统计分析进行了进一步的深化和细化,根据建立的潜力区标准,进行潜力区的定位和精细表征;该方法经在利津油田应用,取得了较好的效果。

Based on the establishment of fine geologic model for the characteristics of fault block pools,an integrated numeri- cal simulation of mega-node scale is performed.The inter- face software preprocessing for numerical simulation was programmed to realize the fidelity transform from the geolog- ic model into the numerical simulation model.A quantified criterion of history matching is established and the constraint mechanism of parameter adjustment is created to obtain the highly accurate history matching.The post-processing software of pool numeral simulation is programmed to fur- ther deepen and refine the quantitative calculation and statis- tical analysis of remaining oil.According to the established criterion for potential area,the orientation and the fine char- acterization of the potential area was performed.A good effect is acquired after the application of the method on Lijin oilfield.