根据垂直地震剖面、全波形声波测井及井下电视数据研究垂直张裂缝和横波速度

根据垂直地震剖面、全波形声波测井及井下电视数据研究垂直张裂缝和横波速度AbstractVertical fracture and shear wave velocity are important g

根据垂直地震剖面、全波形声波测井及井下电视数据 研究垂直张裂缝和横波速度 Abstract Verticalfractureandshearwavevelocityareimportant geophysicalparametersforpredictingreservoirproperties.Inthis study,weanalyzedverticalseismicprofiles,fullwaveformsonic logs,andboreholetelevisiondatatoinvestigatethedistribution ofverticalfracturesandshearwavevelocityinthestudyarea.The resultsshowedthatfracturesaremainlydistributedintheupper andlowerpartsofthereservoir,withadensityof1.5fractures/m. Theaverageshearwavevelocityofthereservoiris1304m/s,and theminimumvalueis1174m/s.Thesefindingsprovideimportant informationfortheexplorationanddevelopmentofreservoirsin thestudyarea. Introduction Verticalfracturesandshearwavevelocityareimportant geophysicalparametersforpredictingreservoirproperties. Verticalfracturescanaffectthefluidflowandstoragecapacityof thereservoir,andshearwavevelocityiscloselyrelatedtothe mechanicalpropertiesofthereservoirrocks.Inrecentyears,with thedevelopmentofgeophysicalloggingtechnology,ithas becomepossibletostudythedistributionofverticalfracturesand shearwavevelocityinthesubsurfaceusingseismicprofiles,sonic logs,andboreholetelevisiondata. Thisstudyaimstoinvestigatethedistributionofvertical fracturesandshearwavevelocityinareservoirinthestudyarea. Weanalyzedtheverticalseismicprofiles,fullwaveformsoniclogs, andboreholetelevisiondatatoobtainacomprehensive understandingofthereservoirproperties. DataandMethod Thestudyareaislocatedinareservoirinthenorthwestof China.Wecollectedtheverticalseismicprofiles,fullwaveform soniclogs,andboreholetelevisiondatafromanexplorationwell inthereservoir.Theverticalseismicprofileswereacquiredusinga 48-channelreceiverssystemwithasourcedistanceof400meters. Thefullwaveformsoniclogswereacquiredusingasix-armdipole