塔中奥陶系缝洞性碳酸盐岩测井评价新技术.pdf

塔中奥陶系缝洞性碳酸盐岩测井评价新技术肖承文刘兴礼祁兴中张承森陈新林吴兴能中国石油塔里木油田分公司勘探开发研究院摘要塔里木盆地塔中奥陶系缝洞性碳酸盐岩储集空间复杂、。本文在生产实践中,优选测井系列,制定以成像测井系列和新方法评价为主体,创建了多学科结合评价塔中缝洞性碳酸盐岩配套的适用方法与技术体系。主要包括以下四个方面内容:①研究了电成像孑L隙度谱和视地层水电阻率谱的计算处理方法,建立了储层与流体评价标准-②创建了基于成像测井为主体的碳酸盐岩井壁特征图版库,提出了“成像测井相”模式方法,研究了成像测井相与储层有效性关系,⑦研究了洞穴型储层测井响应特征,建立了洞穴充填程度与储层有效性关系模型·④提出了测井一地震联合反演的新方法,雕刻出了缝洞体的轮廓、体积及分布。运用上述配套测井新技术系列在塔里木奥陶系缝洞性碳酸盐岩储层评价中,测井储层评价符合率由最初的80%上升到87%以上,流体性质评价符合率由最初的68%上升到82%以上。 Abstract theordovician zone ofTaZhong area oftarimbasin,the pore space ofreservoirs plex,the fluidtypes and existent ale multiplicity;Because ofthose。it difficUl哆tO evaluate thereservoirs bylogging dataand identify paper has studied OUttheMicro-resistivity Image Logging and thenew method themainbodyby optimizing thelogging suite production hasestablished thematching methods and systematizing techniques by unitemultiple disciplines evaluate thefracture-vug carbonate reservoirs Tazhong. First,theprocessing method,which calculates thespc=cu'um ofporosity forMicro-resistivity Image Logging and the spectrum ofapparent formation water resistivity has been stud/ed,and the standard forevaluating thereservoirsand ,the plate~base which based on tim Micro-resistivity Image Logging hasbeen established by proposing theImage—Logging-facies,and theavailable relationship between the reservoirs andImage— Logging-facies has been ,thelogging response featureof cave reservoirs has beenresearched,and the relationship model between the stage ofthe cave and the validation of reservoirs hasbeen ,the new methods which are used invertbyuniting logging and seismic has beenproposed,and thecontour,the bulk and the distribution ofthefracture-rugs have been those new logging technology fracture-rug carbonate reservoirsof theOrdovician zone ofTaZhong area Tarim .eSg ratio oftheevaluation ofreservoirs effectiveness hasrisenup from80%to87%,thecoincid