濮城油田南区沙二上2+3厚层剩余油饱和度研究及认识

摘要

本文通过对濮城南区沙二上2+3油藏进行剩余油分布规律的研究，详细描述了特高含水后期油藏厚油层的剩余油分布特征，通过钻井岩心、测井等资料的精细研究，建立高分辨率层序地层对比格架，利用隔夹层识别技术对厚层进行了细分，分析水井吸水剖面细分及剩余油监测资料，研究了厚油层层内分段含油饱和度分布规律，对剩余油潜力进行再认识。应用选择性补孔提液与精细注水相结合的配套技术挖潜层内弱水淹区剩余油，改善多油层非均质油藏后期开发效果。%This article studied the distribution law of residual oil in southern Pucheng Oilfield Es2 2+3 reservoir, described the distribution law of residual oil of ultra-high water cut stage reservoir thick layer in detail, set up the high-resolution sequence stratigraphic correlation framework through detailed study on drilling core, logging and other data, conducted subdivision of thick layer by using sandwich insulation recognition technology, studied the segmented oil saturation distribution law in thick layer to understand the remaining oil potential again. Using the matching technology of selective filling pore solution combined with fine water injection to explore the remaining oil in weak water flooded zone of the salt layer can improve the development effect of multi-reservoir heterogeneity reservoir.