地震旋回分析方法與應用研究.pdf

1、中國石油大學（華東）碩士學位論文地震旋回分析方法與應用研究姓名：徐闖申請學位級別：碩士專業(yè)：地球探測與信息技術指導教師：楊國權201205ResearchoftheAnalysisMethodandApplicationonSeismicCycleXuChuang(GeophysicalExplorationandInformationTechnology)DirectedbyAssociateProfessorYangGuoquanA

2、bstractSedimentarycycleisoneofthebasicpropertiesofthesedimentarystrataandtheanalysisofsedimentarycycleshasaveryimportantroleinthestudyonoilandgasreservoircharacteristicandpetroleumexplorationanddevelopmentTheseismicdatao

3、btainedbYseismicexplorationcantrulyreflectthecharacteristicsofthesubsurfacegeologicalbody，thereisanecessarycorrespondencebetweensedimentarysequenceandseismicresponse，SOtheseismiccycle，istheseismicmodelcorrespondingtothes

4、edimentarycycleobtainedbyseismicmodeling，canbeaneffectivewayofanalysisofthesedimentarycycleInthispaperwemakesomegeologysedimentgyrationmodelswiththeeachlayerofsandstone’sandmudstone’sinterbedWewillgettheseismicrecordsofd

5、ifferenttypesofsedimentarycyclesthroughforwardmodelingThenwe讎avarietyoftimefrequencyanalysismethodsandgraytheorytostudytheseismicrecordsandWeanalyzethetimefrequencycharacteristicsandthegrayparameterscharacteristicsofseis

6、miccyclesWeanalyzetheseismicrecordsofdifferenttypesofsedimentarycyclesbyusingthewavelettransformStransformthegeneralizedStransformAOKdistributionandthetimefrequencyanalysismethods(CSTandNGST)obtainedbyimprovingthegeneral

7、izedStransformtheandthetimetimeanalysismethod(Trtransformation)obtainedbyimprovingtheStransformAndwegetthetime丘equencyenergymapscorrespondingtothesedimentarycycles，thenanalyzethecharacteristicsofthetimefrequencyenergymap

8、scorrespondingtovarioustypesofseismiccyclesThenweusetheabovemethodstOanalyzecycleswithactualseismicdataTheresultindicatedthatallthetimefrequencyanalysismethodsofabovecallhelpUSanalyzetheseismiccyclesWeanalyzetheseismicre