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:100020747(2009)0420508205,,,,():(04b60202):,,,,,4,50%,,,,,3,,10%,12%,4.3%2310:;;;;;:TE344:ATechnologiesforimprovingproducingdegreeoflowpermeabilitycarbonatereservoirsZhaoLun,FanZifei,SongHeng,LiJianxin,CaiDongmei(PetroChinaResearchInstituteofPetroleumExploration&Development,Beijing100083,China)Abstract:Zanarolisagiantcarbonateoilfieldwithlowpermeabilityandhighheterogeneityreservoirs.ThereservoirpressuredropsquicklyandtheproductiondecliningrateincreasesduetothepreviousdepletiondevelopmentandfastproductionafterCNPCengagedin.Basedonproducingtests,thereservoirscanbeclassifiedintofourtypesaccordingtoproducingandinjectionintensities,betterproducing,goodproducing,lowerproducingandnoproducing,andover50%reservoirshavenoorlowerproduction.Improvingproducingdegreeandwaterfloodingeffectistheorientationfornextdevelopmentadjustment.Severalmeasuresforimprovingproducingdegreeareimplemented,includingseparatezoneproducing,separatezonefracturingstimulation,separatezonewaterinjection,wellpatterninfilling,andgaslift,aswellasincreasingplanesweepefficiencybyamelioratingcorrelationbetweeninjectionandproductionandincreasingverticalsweepefficiencybystimulatingzoneswithlowerproduction.After3yearsofapplication,theproductiondecliningrateofmainpoolsdecreasesby10%,theproducingdegreeincreasesby12%,therecoveryfactorincreasesby4.3%,andthewaterfloodingdevelopmentimprovesgreatly.Keywords:carbonatereservoir;producingdegreeofreserves;separatezonefracturingstimulation;separatezonewaterinjection;gaslift;applicationeffect11.1,[1],,0.245.8,[2],KT2(),9%13%,1310-3m2,,2,[325]24m,200m,1.219871992,199219992003,,,2004KT21,,,200480520098PETROLEUMEXPLORATIONANDDEVELOPMENTVol.36No.460%70%,200214.7%200329.5%,,20030.6%20033.9%,[6]1.3[7],,4:SL()2.0m3/(dm),Sin()7.5m3/(dm),21.1%;:0.5m3/(dm)SL2.0m3/(dm),2.0m3/(dm)Sin7.5m3/(dm),11.4%;:0SL0.5m3/(dm),0Sin2.0m3/(dm),0.24%;:SL=0,Sin=0,48%,52%,90%50%(1)122.110104t;10104t;2.2,,,,,,,90520098:,350,16t,49,12t,136m3,1a,,33184.0m23.3m(1)42m(2),2mm,1200m2,,,,,5.9%13318/m/m/%/%13672.83681.02.506.4223697.53699.01.50033700.53705.53.08.5212.3543712.03715.02.507.5253717.03719.51.304.5163725.03736.05.5026.9773745.03749.04.0013.0783769.03771.02.0010.5893788.03790.02.005.96103795.03800.00.5012.61113802.53806.53.000123816.03817.51.087.2402/m/m/m/%/m/(m2cm)121173388351122.016.88.85491383586364452.024.336152220393578364267.043.49.805212336903754481223208433163518129.091.510.603496353636422786450683628366570.561.39.2446120368437324210568.147.59.62421182.3,,500700m,,,52MPa,24MPa,60%,,20a8%,0.69%,,,,260/t,510104,55/t,,5.52104t20.4104t,20m,350400m,1012.4,()40%,,:5m,2m;2m;,7.5%;,2.5,[8]:,,;,,,,;,,,;,,,2.6,[9](199378m)(21),,,1,15m,;24,,,;,015Vol.36No.41,24,,,,,8.3%2.7LFF,,,,34124342.8,[10],5MPa,,,10MPa,239234m,3.8MPa,11m;10.3MPa,26m(3),32.4%76.5%32392/m/m/(m3d-1)/(m3d-1)3664.03666.52.502.893670.03675.55.501.053677.03681.04.08.961.543684.03689.05.09.5415.223693.03694.01.006.713696.03700.04.0003708.03710.02.0003720.03724.04.000.683729.03731.02.07.895.803735.03737.02.0003743.03745.02.000.233,,,4.3%,20042007104,41t/d31,8.4,;370,11t,245m3;148,21t;44,,4a300104t,:,63.8%,12.2%(2)20033.9%2.2%,15.0%200329.5%200721.0%,200317.7%20078.3%;200535.1%200615.9%,200515.4%200422.0%,9.1%,200724,,,,,,,;,,,:[1],,,.[J].,2003,24(1):92295.YongTianshou,YangRuiqi,GuanWeidong,etal.FormationdivisionandsedimentarycharacteristicsofCarboniferousinZanazorOilfield[J].XinjiangPetroleumGeology,2003,24(1):92295.[2],,.[J],,2009,.SongHeng,FuXiujuan,ZhaoLun.Developmenttechnique11520098:policyofcomplexcarbonatereservoirwithcondensategascap[J]PetroleumExplorationandDevelopment,2009,inpress.[3],,,.KT2[J].,2008,35(4):4982508.FangJiazhong,WuLingang,GaoGang,etal.SedimentaryfaciesandtypesofcarbonaterockreservoirinCaspianSeashoreBasin:AcasefromCarboniferousKT2MemberinZahnanorOilfield[J].PetroleumExplorationandDevelopment,2008,35(4):4982508.[4],,,.[J].,2008,35(4):4922497,508.ChenYefei,CaiDongmei,FanZifei,etal.3Dgeologicalmodelingofdualporositycarbonatereservoirs:AcasefromKenkiyakpre2saltoilfield,Kazakhstan[J].PetroleumExplorationandDevelopment,2008,35(4):4922497,508.[5].[M].:,1997.18220.ZhaoShudong.CarbonatereservoirinRenqiu[M].Beijing:PetroleumIndustryPress,1997.18220.[6],,.[J].,2005,17(5):3112315.GuoTaixian,WangShimin,WangWeimin.ComprehensiveadjustmentofdevelopmentinChenbeioilfield[J].ChinaOffshoreOilandGas,2005,17(5):3112315.[7],,,.[J].,2005,16(1):93297.WangWeihong,ShenPingping,MaXinhua,etal.Studyonproductionabilityofreservoirsandinfluencefactorsinheterogeneous[J].NatureGasGeoscience,2005,16(1):93297.[8],,,.[J].,2002,25(3):40243.MiaoDajun,ZhangYuan,LiGuoyuan,etal.Researchofinjection2productionvoidagebalancingsysteminwaterfloodingreservoir[J].Drilling&ProductionTechnology,2002,25(3):40243.[9],.[J].,2008,35(2):2202224.YaoBo,ZhaoQingdong.AsuccessfultestwithsubdivisionofoillayersandadjustmentofwaterfloodinginGaotaizioilzone,DaqingOilfield[J].PetroleumExplorationandDevelopment,2008,35(2):2202224.[10],,,.[J].,2004,31(3):1072109.LiZhongxing,HanHongbao,ChengLinsong,etal.Anewsolutionandappli