Identification of oil reserves in Taizhou Formation, Haian Sag, Northern Jiangsu Basin
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摘要: 苏北盆地海安凹陷自上世纪80年代勘探以来,零星发现了多个含油断块.由于时间跨度大、资料录取分散,一直没有统一的油层识别技术与方法.该文在储层四性关系研究的基础上,利用钻井取心、测井、测试、试采及化验分析等多种资料进行综合,研究出了识别油层的方法与技术,提高了识别油水层的精确度.该方法在海安凹陷近期新发现的几个含油断块中的应用效果较好,对该区今后勘探开发井的测井解释提供了行之有效的方法,同时对下一步油气勘探开发中试油测试工作具有积极的指导作用.Abstract: In the 1980s,petroleum explorations started in the Haian Sag of the Northern Jiangsu Basin,sporadically discovering several oil-bearing fault blocks.Due to long time span and dispersed data,there was no unified identification method for oil reserves.Based on the studies of reservoir properties,combined with the data from coring drilling,logging,well completing testing and production testing,the method for reserve identification was proposed in this paper,making the identification for oil and water formations more accurate.The method was applied in several recently discovered oil-bearing fault blocks in the Haian Sag,and was proved an effective method for logging interpretation of petroleum exploration and development.Meanwhile,it could guide oil testing works in the future.
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