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金湖凹陷西斜坡紧邻三河次凹,资源潜力大。近年来,该区相继发现了多个含油气区块,已成为金湖凹陷增储上产的重要战场。本次研究以井资料为基础,通过岩心、测井、录井等综合资料,系统研究该区阜宁组主要储集体的沉积特征和平面展布规律。研究表明:阜二段为滨浅湖-半深湖相沉积,主要发育砂滩、砂坝、生物滩、浅湖泥4种微相,在局部地区发育残留水下河道砂;阜三段为三角洲前缘-前三角洲相沉积,主要发育前缘席状砂、远砂坝、河口坝、前三角洲泥4种沉积类型,同时,在临近半深湖区还发育少量浊积扇沉积。
The west slope of Jinhu Depression is closely adjacent to the Three Rivers and has great potential for resources. In recent years, several gas-bearing blocks have been discovered in this area, which has become an important battlefield for increasing reserves and production in Jinhu Depression. Based on the well data, this study systematically studied the sedimentary characteristics and plane distribution of the major Funing Formation reservoirs in the area through comprehensive data of core, well logging and well logging. The results show that the second member of Fu 2 Member is shallow-lake-semi-deep lacustrine facies, mainly including four kinds of microfacies such as sand beach, sand bar, biological beach and shallow lake mud, and residual water channel sand in some areas; There are four types of sediments in the margin-front delta sedimentary facies, mainly foreland sands, far sand bar, estuarine dam and the former delta mud. At the same time, there are also a few turbidite fan deposits near the semi-deep lake area.