資源描述：
《大慶長(zhǎng)垣南部扶楊油層孔隙結(jié)構(gòu)及滲流特征研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、萬(wàn)方數(shù)據(jù)AbstractWiththeincreasingdemandofoilandgasresourcesanddecreaseoftherestresources，moreresearchesputfocusondevelopinglowpermeabilityanultra-lowpermeabilityreservoirs．InvestigationshaveshownthatthereststorageresourcesofFuyangreservoirsinouterDaqingPlacanticlin
2、etobeconfirmedareasmanyas400milliontons．However,thesereservoirshavescatteredsandstone，partialfracturesandbad．distributedoilandwater．Therefore，it’Squitenecessarytolearntheporestructuresandseepagecharacteristicsthroughcoreexperiments，whichisinstrumentalforahigher
3、efficientdevelopment．Fuyangreservoirsbelongtodeltaplainfacies，andsandstonesmainlydispersedinmiddle—westpartofXingnanareaandGaotaizioilfield，whichmostexistedintoppartofFIgroupandmiddlepartofFlIgroup．Thereservoirhadoillayeranddrylayeralternativelydistributedinthe
4、verticaldircction，whileinthehorizontaldirection；theymosthadchistoseandbandingdistributionwithpoorcontinuity．FuyangreservoirsweremainlyFault-lithologicandstructural-lithologicreservoirs．Andthelithologyofthereservoirwasfeldspathiclitharenitefinesandstonesandsilts
5、toneswithahighconcentrationofclay．TheairpermeabilityofFuyangreservoirwas0．1—2mD．a(chǎn)ndtheaverageporosityvariesfrom10percentto18percentwimainsideoildistributionofoiIimmersedtypeandoilpatchtype．ThroughtheConstant—rateMercuryInjection，NuclearMagneticResonanceandSOon，
6、itwasfoundoutthattheporetypesweremainlydominatedbythesmallthinthroatwinloilinsidedifficulttobeswept．Fromtherelationshipbetweenmobilefluidsratioandtheirpermeability,FuyangoilfieldhadpoorerdevelopmentthanToutaiandYushulinoilfields，butwasbetterthanBayanchaganandZh
7、aoyuanoilfields．Thereservoirsensitivitystudieshadshownstrongwater,acidandpressuresensitivityforFuyangoillayers．AndtheaveragetriggeringpressuregradientofFuyangoillayersWas0．0174MP／m，whichincreasedrapidlywhenthepermeabilitywasbelow1．0mD．Thesaturationofmobileoilde
8、creasedwhentheareaofoilwatertwo-phaseflowbecamenarrower．Inthestudy,theporestructuresandseepagecharacteristicswereinvestigated，III萬(wàn)方數(shù)據(jù)whilethewellnetworkinthetrialareawasfull
