合成地震记录

EXPLORATIONTECHNIQUES45EXPLORATIONTECHNIQUES4647CHINAPETROLEUMEXPLORATIONAbstract:Accordingtokarstificationtime,depth,rocksmedium,producingenvironmentandmechanisms,karstcanbeclassifiedintokarstandpaleokarst,andinverticalitalsobedividedintofivebeltsincludingweatheredlayer,verticalseepagebelt,seasonalchangedbelt,horizontalseepagebeltanddeepsluggishbeltbasedonthefeaturesofkarst'shydrodynamics.Aftersumminguptheformerresearchers'results,itisdiscussedthat10geologicalfactorsarerelatedtodevelopthepaleokarstofoil-gasreservoirsand7kindsofkarstdevelopingmechanism,andisconcludedtheprogressandthedevelopmenttendencyofkarstresearchinthefuture.Keywords:karst,paleokarst,geologicalcondition,developmentmechanism,researchprogress,developmenttendencyNon-seismicTechniqueforDirectOil-gasDetectionandItsExplorationPractice//ZhaoBangliu1,HeZhanxiang2andWenBaihong3/1PetroChinaCompanyLimited,Beijing100011;2CNPCBGPInc.,ZhuoZhouCity,HebeiProvince072751;3PetroChinaResearchInstituteofPetroleumExplorationandDevelopment,Beijing100083Abstract:Itiswellknownthatgeneralseismicmethodhasbeenplayinganimportantroleinexplorationanddevelopmentofoilandgas.Nevertheless,withtheincreaseofexplorationanddevelopmentdifficultiesforstructuralandstratigraphictrapsincomplexmountainousregionsandthrustingbeltsinforelandsandlithologic-stratigraphicoil-gasreservoirs,soleP-waveseismicmethodbarelymeetstheseneeds.Bycontrasting,studiesandapplicationsofnon-seismicdirectoil-gasdetectionmethodsshowtheirsuperioritytoreducetheexplorationriskandcost.Asaresultoftechnicalprogressesandbasedonmulti-attributecharacteristicsofoil-gasreservoirs,anon-seismicoil-gasdetectionstrategyisformulatedandtheapplicationprerequisitesofnon-seismicmethodsarestudiedwithexplorationcases.Sothatarousesattentionsandreconsiderationsfromexpertsandadministratorsinexplorationanddevelopmentsectorofoilandgasindustry.Keywords:non-seismicmethods,directoil-gasdetection,applicationprerequisites,explorationcasesExplorationStatusandTechnicalDevelopmentSuggestionofSeismicExplorationinPetroChinaExplorationAreainBohaiBayBasin//ZhangYing/PetroChinaResearchInstituteofPetroleumExplorationandDevelopment,Beijing100083Abstract:OnthebasisofanalysisofseismicexplorationhistoryandextentinPetroChinaexplorationareainBohaiBayBasin,itevaluatedmainlythequalityof3Dseismicdatainthearea.CombinedwiththegeophysicalcharacteristicsandgeologicalfeaturesinthekeytargetstobeexploredinBohaiBayexplorationareainthefuture,itisdiscussedthatoilandgasexplorationneedsthesuitableseismicexplorationtechniques,andthenputforwardthatthesuggestionswillbeconsideredfortechniquedevelopmentofseismicexplorationinBohaiBayBasininthefuture.Keywords:seismicexplorationextent,dataquality,evaluation,explorationstatus,technicaldemand,developmentsuggestionApplicationofFineDemarcationwithSyntheticSeismicRecordforStratigraphicUnit//HongYugang,ChenJingshan,DaiZongyangandLiLingfeng/DepartmentofResourcesandEnvironment,SouthwestPetroleumInstitute,ChengduCity,SichuanProvince610500Abstract:Byanalyzinggeneralmethodsusedincompilingsyntheticrecord,takingconsiderationoftheseismicandgeologicaldataofthestudyarea,ausefuloptimalmethod,whichemphasizedthewaveletextractionmethodandthedeviationcausedbywaveletphase,waspresentedtomakesyntheticseismicrecords.WiththeapplicationofthismethodtoXinkai-Dongjiagangarea,LiaoheOilfield,wherethequalityofseismicdatawasrelativelypoor,makingtheaccuracyofstratigraphicunitdemarcationhighlyincreasecomparedwithgeneralmethods.Keywords:stratigraphicunitdemarcation,syntheticseismicrecord,waveletextractionKirchhoffPrestackTimeMigrationTechnologyandItsApplication//YangChunmei1,YanJun1andChenTianzhu2/1GeophysicalResearchInstituteofZhongyuanOilfieldCompany.,Sinopec,PuyangCity,HenanProvince457001;2GeologicalSurveyDepartment,ZhongyuanOilfieldCompany,Sinopec,PuyangCity,HenanProvince457001Abstract:ThegeologicalstructureiscomplexinZhongyuanarea,andtherearealotofsmallfault-blocksinthisarea,atthesametimeoriginalseismicdataareseverelydominatedbylinearnoiseandmultiplewaves.Accordingtothecharacteristicoforiginalseismicdatainthisarea,firstlylinearnoiseandmultipleareremoved,thenKirchhoffprestacktimemigration(KPSTM)iscarriedoutonthedata,whilstapertureandfrequencylimitsaretested.Thefinalprocessingeffectisobvious,andvelocitypickingconflictproblemincrossingstrataiseffectivelyresolved.Keywords:Kirchhoffprestacktimemigration(KPSTM),multiplewave;linearnoise;migrationaperture,frequencyHigh-pressureandLow-permeabilityReservoirReconstructionTechnologyandItsApplicationinDeepPermianinXiazijieRegion,JunggarBasin/JinJun1,2,KuangLichun2andSongGuiyou2//1CollegeofEarthResourcesandInformation,ChinaUniversityofPetroleum,Beijing102249;2PetroChinaXinjiangOilfieldCompany,KaramayCity,Xinjiang834000)Abstract:Thecoreproblemoflow-permeabilityoil&gasreservoirs'explorationandexploitationistoheightentheoutputofsinglewell,soastodecliningtheproductioncost.Recently,withthecontinuousimprovementofreservoirreconstructiontechnologyandfurtherresearchonXiazijieregioninnorthwesternJunggarBasin,itistackledthekeyprob