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大小:2.49 MB
页数:10页
时间:2019-05-22
《尼日尔三角洲盆地Akpo油田新近系深水浊积水道储层构型表征》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第33卷第6期石油学报Vol.33No.62012年11月ACTAPETROLEISINICANov.2012文章编号:0253-2697(2012)06-1049-10尼日尔三角洲盆地Akpo油田新近系深水浊积水道储层构型表征赵晓明1,2,331,2吴胜和刘丽(1.西南石油大学资源与环境学院四川成都610500;2.天然气地质四川省重点实验室四川成都610500;3.中国石油大学地球科学学院北京102249)摘要:由于深水浊积水道油藏多位于深海区,受作业成本的限制,其开发井距往往较大,利用现行的针对密井网区的多井模式拟合方法进行该类油藏的地下储层构型表征,其精度较低。为此,利用西非
2、尼日尔三角洲盆地深水区Akpo油田稀井条件下的钻井与地震资料,提出了基于井-震联合的该区深水浊积水道储层构型表征技术,论述了其表征思路与方法。深水浊积水道储层构型可分为水道体系、复合水道和单一水道3个层次,其中复合水道层次又可细分为复合水道系列和复合水道2个亚层次,不同层次构型单元规模差异大,需要在构型模式指导下,分别开展基于油组、小层及小层内部切片的井-震联合,将不同层次的构型模式与钻井、地震资料进行拟合,完成深水浊积水道的储层构型表征。这一研究不仅对高效开发深水浊积水道油藏具有实用价值,对利用井-震联合方法开展储层构型研究也具有重要参考价值。关键词:稀井网区;深水浊积水道;储层构
3、型;层次分析;井-震联合中图分类号:TE112.2文献标识码:ACharacterizationofreservoirarchitecturesforNeogenedeepwaterturbiditychannelsofAkpooilfield,NigerDeltaBasin1,2,331,2ZHAOXiaomingWUShengheLIULi(1.SchoolofResource&Environment,SouthwestPetroleumUniversity,Chengdu610500,China;2.SichuanKeyLaboratoryofNaturalGasGeology
4、,Chengdu610500,China;3.CollegeofGeosciences,ChinaUniversityofPetroleum,Beijing102249,China)Abstract:Deepwaterturbiditychannelreservoirsareusuallylocatedindeepseaareas,whereadistantspacingpatternfordevelop-mentwellsisoftenallocatedduetothecostconstraintofprospectingoperation.Consequently,thechar
5、acterizationofsuchunder-groundreservoirarchitecturesofdeepwaterturbiditychannelswiththecurrentoverlaymethodformulti-wellmodelsusedmainlyun-derdense-wellpatternconditionsusuallyachievesapoorprecision.Therefore,basedondrillingandseismicdataofadistantwellspacingpatternfordeepwaterturbiditychannelr
6、eservoirsoftheAkpooilfieldinNigerDeltaBasin,WestAfrica,weintroducedano-velmethodtocharacterizesuchturbiditychannelreservoirarchitecturesintermsofwell-to-seismicintegration,anddiscusseditscon-ceptionandproceduresaswell.Reservoirarchitecturesofdeepwaterturbiditychannelscanbeclassifiedintothreeord
7、ers,channelsystem,channelcomplexandsinglechannel.Ofwhichthechannelcomplexcanbefurthersubdividedintotwosuborders,channelcomplexseriesandchannelcomplex.Variousordersofarchitectureunitsdiffersignificantlyfromeachotherinscale,thus,awe
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