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1、學(xué)兔兔www.xuetutu.com中國石油勘探第21卷第1期CHINAPETROLEUMEXPLORATION2016年1月DOI：10．3969l／j．issn．1672—7703．2016．01．003儲層結(jié)構(gòu)非均質(zhì)性及其在深層油氣成藏中的意義羅曉容張立寬雷裕紅胡才志施輝曹斌風(fēng)(中國科學(xué)院地質(zhì)與地球物理研究所)摘要：儲層孔滲物性的非均質(zhì)性客觀存在，對于地下流體的流動(dòng)過程影響明顯，這不僅對于油氣田開發(fā)十分重要，在油氣運(yùn)聚成藏研究中也不能忽視。文章討論一類較為特殊的結(jié)構(gòu)非均質(zhì)性，即儲層中沉積結(jié)構(gòu)的非均質(zhì)性導(dǎo)致各種致密隔夾層構(gòu)成某種三維空間結(jié)構(gòu)，阻礙儲層
2、中流體的流動(dòng)，引起埋藏過程中成巖作用、油氣運(yùn)聚成藏及儲層致密化過程的強(qiáng)非均質(zhì)性。模擬分析結(jié)果表明這種非均質(zhì)性會(huì)導(dǎo)致油氣運(yùn)移路徑和聚集位置的強(qiáng)非均質(zhì)性。結(jié)合巖心觀察和油氣藏解剖分析，發(fā)現(xiàn)準(zhǔn)噶爾盆地腹部侏羅系含油儲層在埋藏到盆地深層的過程中成巖一成藏作用交替發(fā)生，結(jié)構(gòu)非均質(zhì)性的存在可在深層條件下保持有效儲集空間，有利于晚期油氣運(yùn)聚成藏。關(guān)鍵詞：盆地深層；砂巖儲層；結(jié)構(gòu)非均質(zhì)性；沉積構(gòu)造；成巖作用；油氣運(yùn)聚中圖分類號：TEl12．23文獻(xiàn)標(biāo)識碼：AStructuralheterogeneityofreservoirsanditsimplicationonhyd
3、rocarbonaccumulationindeepzonesLuoXiaorong，ZhangLikuan，LeiYuhong，HuCaizhi，ShiHui，CaoBinfeng(InstituteofGeologyandGeophysics,ChineseAcademyofSciences)Abstract：Porosityandpermeabilityheter0geneitiesofreservoirsarecommongeologicalphenomenathatinfluencesignificantlyfluidflowing．Theya
4、reveryimportantnotonlyforoilandgasproductionbutalsoforoilandgasmigrationandaccumulationresearches．Inthispaper,akindofspecialstructuralheterogeneitywasdiscussed．Owingtotheheterogeneitiesofsedimentarystructuresinreservoirs，acertain3Dspatialstmcmreisformedbyvarioustightintercalation
5、s．Duetotheexistenceofsuch3Dstructures，theflowoffluidsinreservoirisimpeded，diageneticalheterogeneityisinducedduringtheburialhistory,andstrongheterogeneitiesaregeneratedintheprocessofhydrocarbonaccumulationandporosityreduction．Itisshownfromsimulationresultsthatthiskindofstructuralh
6、eterogeneitycanresultinstrongheterogeneityofmigrationpathwaysandaccumulationlocations．Basedoncoreobservationandhydrocarbonreservoirdissectionanalysis，diagenesisandreservoirformationtookplacealternativelywhenJurassicoil-bearingreservoirsinthecentralJunggarBasinwereburiedtothedeepz
7、onesinthebasin．Duetotheexistenceofstructuralheterogeneity,thehigh—qualityreservoirscanbepreservedinthedeepzonesanditisfavorableforthemigrationandaccumulationofoilandgasatthelaterstage．Keywords：deepzone，sandstonereservoir，structuralheterogeneity，sedimentarystructure，diagenesis，hyd
8、rocarbonmigrationandaccumu】ation盆地中沉積地層埋
