论文部分内容阅读
油层的非均质性主要体现为渗透率分布的不均匀。由于沉积物及地质作用的影响，渗透率在纵向上的分布具有随机性的一面，因此可以用概率统计方法来描述渗透率在纵向上的分布规律。以卞东油田为研究对象，通过测井解释资料或常规监测资料建立卞东油田渗透率分布函数，用数值方法计算了油水井含油层段的高渗通道地质参数，包括渗透率及其厚度和孔道半径，定量估计了油层的非均质性。对比概率模型计算结果与示踪剂产出曲线数值分析结果，二者基本一致，都表明：该断块油田存在高渗通道，其平均等效孔径可以使用颗粒堵剂堵水，为该油田在高含水期进行调剖堵水工程设计提供了可靠的地质依据。高渗通道（大孔道）地质参数的定量描述对调剖堵水设计及注聚合物工艺设计具有重要意义。
The heterogeneity of the reservoir is mainly reflected by the uneven distribution of permeability. Due to the sediment and geological effects, the vertical distribution of permeability has a random side, so you can use probability statistics method to describe the distribution of permeability in the vertical direction. Taking Bian Dong oilfield as the research object, the permeability distribution function of Bian Dong oilfield was established through log interpretation data or routine monitoring data. The geological parameters of the high permeability channel in the oil-water well section were calculated by numerical method, including permeability and its thickness Channel radius, quantitative estimation of reservoir heterogeneity. The calculated results of the comparative probabilistic model and the numerical analysis of the tracer output curve are basically the same, both of which show that there is a high permeability channel in the fault block oilfield, and the average equivalent pore size can be blocked with particle plugging agent. High water cut period profile control engineering provides a reliable geological basis. The quantitative description of the geological parameters of the hypertonic channel (macropore) is of great significance for the profile control and water plugging design and polymer injection process design.