AVO技術(shù)及在蘇里格氣田儲層含氣性檢測中的應(yīng)用.pdf

1、成都理工大學(xué)碩士學(xué)位論文AVO技術(shù)及在蘇里格氣田儲層含氣性檢測中的應(yīng)用姓名：杜焰申請學(xué)位級別：碩士專業(yè)：地球探測與信息技術(shù)指導(dǎo)教師：曹俊興20090501AbstractAVOTechniqueitsApplicationinGasbearingDetectionofSstoneReservoiratSuligeGasFieldIntroductionoftheauth:DuYanmalewasbninJuly1982，whosetut

2、wasProfessCaoJunxing.IgraduatedfromChengduUniversityofTechnologyinGeophysicalProspectingInfmationTechnologymajwasgrantedtheMasterDegreeinJune2009.AbstractAVOtechniqueisusedtoidentifylithologydetectoilgasthroughfeaturecha

3、ngingoftheseismicreflectionwaveamplitudewithoffset.Therearetwomethodsoffwardmodelinginversion:FwardAVOmodelingusemodeltofwardAVOmodelingphenomenonhydrocarbonbearingpoolfeatureanalyzeAVOresponseonliquidsuchasoilbrinegases

4、tablishamatchedAVOdetectionunderdifferencegeologicalconditions.FwardAVOisusedtoqualitativelydescribethereservoirdirectlyidentifylithologyhydrocarbonfromrealseismicrecd.AVOinversionmethodextracttheconcealedlithologicalpar

5、ameterfromseismicinfmationonthebasisofamplitudechangedwithangleofincidenceestimateseismicparametersoftherock.It’saveryimptantmethodtopredictlithologyhydrocarbonquantitatively.Theeffectivereservoirisacterizedbythinrapidla

6、teralvariationintheeighthmemberofShiheziFmationinSuligegasfield.Itbelongstofluvialdeltasstonelithologicgasreservoirwithstrongheterogeneitylowpositylowpermeability.Basedonloggingpetrophysicsanalysisbyfwardmodelingthethesi

7、sstudyofAVOresponseonseismicinfmationintheeighthmemberofShiheziFmationinSuligeGasfieldtheelasticparametersoftheeffectivereservoirwereobtainedbyprestackinversionthecomprehensiveexplanationofelasticparameterscanaffdreferen

8、cetoconstitutedevelopmentplanreasonable.AVOtechniqueincludeavarietyofmethodstheyhaveownacteristicadaptability.Accdingtothedepositfeatureofreservoirtobesolvedgeologyprobleminstudyareathethesischoosesthemostsuitablemethod.