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1、2012年8月大慶石油地質(zhì)與開發(fā)Aug.,2012第31卷第4期PetroleumGeologyandOilfieldDevelopmentinDaqingV01.31No.4DOI:10.3969/J.ISSN.1000.3754.2012.04.013大慶外圍油田儲層裂縫綜合描述技術(shù)孫淑艷劉益嘉劉迪(1-大慶油田有限責(zé)任公司勘探開發(fā)研究院,黑龍江大慶163712;2.大慶油田有限責(zé)任公司第三采油廠,黑龍江大慶163113)摘要:大慶外圍油田以低、特低滲透儲層為主,天然裂縫比較發(fā)育。針對儲層裂縫對油田注水開發(fā)
2、效果影響較大的問題,通過分析研究外圍油田裂縫監(jiān)測數(shù)據(jù)資料,深入開展了儲層裂縫表征、預(yù)測及綜合描述方法研究,研究了雙重介質(zhì)儲層裂縫建模方法,形成了一套完整的低孑L低滲儲層裂縫定量描述方法,建立了裂縫網(wǎng)絡(luò)模型及雙重介質(zhì)模型,實現(xiàn)了裂縫幾何模型與等效介質(zhì)模型轉(zhuǎn)換,初步解決了儲層裂縫地質(zhì)建模技術(shù)難題。其研究成果在油田開發(fā)中得到廣泛應(yīng)用,取得較好的開發(fā)效果和經(jīng)濟效益,對非均質(zhì)裂縫型油田精細開發(fā)調(diào)整具有重要指導(dǎo)意義。關(guān)鍵詞:儲層裂縫描述;裂縫預(yù)測;地震螞蟻體;裂縫建模;雙重介質(zhì)中圖分類號:TE321文獻標(biāo)識碼:A文章編號:
3、1000.3754(2012)04-0064-05COMPREHENSIVECHARACTERIZINGTECHNIQUEOFTHERESERVOIRFRACTURESINDAQINGPERIPHERALoILFIELDSSUNShuyan,LIUYijia,LIUDi(1.ResearchInstituteofExplorationandDevelopmeritofDaqingOilfieldCompanyLtd.,Daqing163712,China;2.No.3OilProductionPlantofDa
4、qingOieldCompanyLtd.,Daqing163113,China)Abstract~Daqingperipheraloilfieldsaremainlycharacterizedbylow—permeability&ultra.1ow—permeabilityreser.voirsandwell—developednaturalfractures.Inthelightoftheissueofseriousinfluencesofthereservoirfracturesontheperforman
5、cesofoilfieldwaterflooding,withthehelpoftheanalysesandstudiesonthemonitoreddataofthefractures,themethodresearchesonthefracturecharacterization,forecastandcomprehensivedescribingmethodaredeeplycarriedout,andmoreoverthedual-porositymediafracturemodelingapproac
6、hisstudied,thusasetofcon—pletequantifiedcharacterizingmethodoflow-porosityandlow—permeabilityreservoirfracturesisestablished,thefracturenetworkmodelanddual-porositymediamodelarebuilt。SOthegeometricmodelofthefracturescanbecon.vertedintoequivalentmediamodel,fi
7、nallythetechnicalproblemsofthegeologicalmodelingforthereservoirfrac—turesisgenerallysolved.Thestudyachievementshaveextensivelyappliedintheoilfielddevelopmentandthemuchbettersocialandeconomicaleffectshavebeenacquired.Inaword,theachievementshavepossessedimport
8、antguidingsignificanceforthefinedevelopmentadjustmentofheterogeneousfracturedoilfields.Keywords:characterizationofreservoirfracture;fractureforecast;seismicant—tracking;fracturemodeling,dual一收稿日