南海礁滩相储层油水识别方法研究与应用  

Studies and application of oil and water identification method for reef beach facies reservoir in South China Sea

作　　者：蒋炼[1] 贺振华[2] 黄德济[2] 文晓涛[2] 

机构地区：[1]成都理工大学研究生部信息工程学院油气藏地质及开发国家重点实验室,应用地球物理专业四川成都610059 [2]成都理工大学油气藏地质及开发国家重点实验室,四川成都610059

出　　处：《石油地球物理勘探》2010年第5期725-730,792+621,共6页Oil Geophysical Prospecting

基　　金：国家科技重大专项(2008zx05025);国家自然科学基金青年基金项目(40904034);国家自然科学基金“石油化工联合基金”重点项目(40839905)资助

摘　　要：本文在南海地区大量测井资料分析、统计的基础上,认识到在同一层序内相同相带条件下,相同孔隙度油层和水层对应的波阻抗差值明显,因此可以作为礁滩相储层油水识别标志。本文的研究思路是:首先进行测井资料分析、孔隙度反演和波阻抗反演,然后利用它们在同一相带条件下的含油和含水时的波阻抗差异,进行油水识别。应用实例表明,此法能够比较清晰地刻画油层和水层的分布范围。Based on a large amount of analysis and statistics for the well logging data in South China Sea,it is believed that the oil layer and the water layer in one sequence with the same porosity and under the same facies and correspond to different wave impelence,which can be used as oil and water identification mark for reef-beach facies. The research idea in this paper can be expressed as below:at first through well logging analysis,porosity inversion and wave impedance inversion are performed,then the wave impedance difference between oil layer and water layer under the same facies condition was utilized to conduct oil and water identification. The application example shows that applying of this method could clearly delineate the distribution of the oil reservoir and water zone.

关 键 词：礁滩相储层 油水识别 波阻抗反演 孔隙度反演 测井分析 

分 类 号：P631.84[天文地球—地质矿产勘探]