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《地震属性地质意义（geological significance of seismic attributes）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、地震属性地质意义（Geologicalsignificanceofseismicattributes）Whenthereservoirpredictionisusedforreservoirprediction,itmainlystartsfromtheamplitudeattributeanditsextensionattribute,analyzesthechangingcharacteristicsoftheproperty,thencalibratesthedrillingandgeology,andgivesthegeolo
2、gicalmeaningoftheproperty.----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------AverageReflectionStrength:identifyamplitudeanomalies,andtrac
3、etheseismicamplitudeanomaliescausedbydelta,channel,gassandstone,etc.Indicativeofmajorlithologicalchanges,unconformity,gasorfluidaccumulation;Theattributeisacommonattributetopredictthethicknessofsandstone.BusinessTroughAmplitudeAverageTroughAmplitude:usedtoidentifylithol
4、ogychange,gas-bearingsandstoneandformation.Itcaneffectivelydistinguishtheconsolidationofsediments,mounddeposits,anddisjointedsediments.Predictionofcommonpropertiesofoilyair;Business,InstantaneousPhaseAverageInstantaneousPhase:asthelateralchangesofthePhasemaybeassociated
5、withthefluidcompositioninformationchanges,sotheattributecandetectthedistributionofoilandgas.Atthesametime,itcanalsoidentifytheamplitudeanomaliescausedbythetuningeffect,andthegeneralpropertiesofoilgasarepredicted.AbsorptionenergyAbsorptionproperties:taketheformofslidingf
6、rictionbetweentheinternalfrictionandtheporefluidviscouslossisprobablythemostimportantwaveenergycanbeconvertedintoheatenergyintheformofinhighpermeabilityrocks,porefluidviscouslossismoreserious.Therefore,thepropertiesoftheabsorptionclasscanbeusedasthegeneralpropertiesforp
7、redictingthegas-bearingproperties.TheSlopeoftheReflectionStrengthofSlopeReflection:thechangetrendoftheverticalstrata,thechangeofthefluidcomponentintheverticaldirection;Commonpropertiesofsandstonethicknessprediction;PercentGreaterThanthepercentageoftheThresholdisGreaterT
8、hantheThresholdvalue:todistinguishtheprograde/retrogradationsequence,thepropertieshelptoanalysisthemaintrendof
