ZW地区三垛组一段油层精细识别及复查

Fine Identification and Re-Examination of the First Member of Sanduo Formation in ZW Area

摘要: ZW油田是高邮凹陷的主力产油区，其三垛组(E2s)油气藏埋深相对较浅、储层发育、储集物性条件优越、单井产量高，具有很好的商业开采价值。针对该区E2s储层，该文在综合钻井取心、测井、测试、试采及化验分析等多种资料研究的基础上，开展了储层“四性”关系研究，分析了影响电性特征的主要因素，建立了油水层精细识别图版，提高了识别油水层的精确度，挖潜了一批油层，优选有利井段进行调层、补层试油及投产，取得了较好的经济效益。

Abstract: ZW oilfield is the main oil producing area in Gaoyou sag, and its Sanduo formation (E2s) oil and gas reservoir has relatively shallow buried depth, reservoir developed, superior reservoir physical conditions and high single well production, which has good commercial exploitation value. For the E2s reservoir in this area, based on the comprehensive research of drilling coring, logging, testing, production test and laboratory analysis, this paper analyzes the relationship between “four properties” of the reservoir, analyzes the main factors affecting the electrical characteristics, establishes the fine identification chart of oil-water layer in the zoning, improves the accuracy of identifying oil- water layer, excavates the potential of a number of oil layers in the old area, selects favorable well sections for layer adjustment, layer supplement, oil test and production, good economic benefits have been achieved.