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1、摇2011年2月摇摇摇摇摇摇大庆石油地质与开发Feb郾,2011摇摇摇摇摇摇摇摇摇摇摇摇摇摇摇摇摇第30卷第1期PetroleumGeologyandOilfieldDevelopmentinDaqingVol郾30No郾1DOI:10郾3969/J郾ISSN郾1000鄄3754郾2011郾01郾034川东北地区礁滩相储层中泥灰岩识别11,21,21蔡涵鹏摇贺振华摇李摇瑞摇黄德济(1郾成都理工大学信息工程学院,四川成都摇610059;2郾成都理工大学油气藏地质及开发工程国家重点实验室,四川成都摇610059)摘要:川东北地区长兴组和飞仙关组地层广泛发
2、育生物礁滩储层。长兴组顶部普遍发育一套厚度不等的潮坪白云岩;飞仙关组一段底部发育一套泥灰岩沉积,泥灰岩沉积厚度与长兴组潮坪白云岩厚度有密切关系,具有厚度薄、低波阻抗的特征。为了防止在储层预测中将泥灰岩作为储层,系统分析了泥灰岩的测井响应和地震响应特征;根据测井分析结果并考虑泥灰岩沉积环境,提出基于多属性的高分辨率非线性参数反演、地震波阻抗反演、交会图技术、沉积相和地震相分析相结合来识别礁滩相储层中泥灰岩的思路。通过实际资料的分析与应用,证实了该思路对识别具有储层特征的泥灰岩的有效性。关键词:礁滩相储层;泥灰岩;多属性反演;波阻抗反演;地震相分析中图分
3、类号:P631摇摇摇文献标识码:A摇摇摇文章编号:1000鄄3754(2011)01鄄0165鄄05MARLSTONEIDENTIFICATIONINREEFFLATFACIESRESERVOIRSINNORTHEASTERNSICHUANBASIN11,21,21CAIHanpeng,HEZhenhua,LIRui,HUANGDeji(1郾ChengduUniversityofInformationEngineering,Chengdu610059,China;2郾StateKeyLaboratoryofOilandGasReservoirGeol
4、ogyandExploitation,ChengduUniversityofTechnology,Chengdu610059,China)Abstract:ReefflatfaciesreservoirshavebeenwidelydevelopedinChangxingFormationandFeixianguanForma鄄tioninNortheasternSichuanbasin.AgroupoftidalflatdolomitewithdifferentthicknessdevelopsintopChangxingFormation,and
5、agroupofmarlstonesedimentsdevelopsatthebottomofMember玉ofFeixianguanFormation,withthicknessiscloselyrelatedtothatoftidalflatdolomiteinChangxingFormation.Marlstonesourcerockhasfea鄄turesoflittlethicknessandlowwaveimpedanceinversion.Toavoidthemistakethattakingmarlstoneasreservoir,t
6、hispaperanalyzesonloggingresponseandseismicresponsecharacteristics.Basedonlogginganalysisanddeposi鄄tionalenvironmentofmarlstone,itpresentsanideaofidentifyingmarlstoneinreefflatfaciereservoir,combinedwithmulti鄄attributeandhigh鄄resolutionnonlinearparametricinversion,seismicacoust
7、icimpedanceinversion,crossplottechnique,aswellasanalysisonsedimentaryfaciesandseismicfacies,Researchandapplicationofrealdataprovesitseffectivenessinindentifyingmarlstonewithreservoircharacteristics.Keywords:reefflatfaciesreservoir;marlstone;multi鄄attributeinversion;waveimpedanc
8、einversion;seismicfa鄄ciesanalysis摇收稿日期:2009鄄12鄄09摇摇改回日
