井间剩余油分布规律的测井评价方法

针对砂泥岩油田注水开发的特点,推出了在相控条件下应用测井资料结合地质、沉积、开发等动静态资料综合进行剩余油分布评价方法.该方法通过在杏6-7区应用,沉积微相划准率达85%以上;小层对比符合率达90%以上;砂体连通性预测和剩余油分布评价与地质规律基本一致.为油田精细地质研究、优化布井、合理制定射孔方案、充分挖掘剩余油和油藏管理提供可靠的依据.

Logging Evaluation Technique for Interwell Remaining Oil Distributionation

On the basis of features of water injection development oilfield with sand shale reservoirs, a comprehensive evaluation method is proposed in this paper of remaining oil distribution using log data in combination with performance and static data about geology, sedimentation and development under facies controlled conditions. With this technique applied to Xing 6 7 regions, the accuracy of sedimentary microfacies zonation is over 85%, the coincidence rate of subzones correlation over 90%, and the predicted sandbody connectivity and the evaluated remaining oil distribution show no difference from actual geologic structures basically. So, it provides reliable evidence for fine geologic researches, optimal well pattern, good perforation design, full remaining oil findings and scientific reservoir management.