储层流动单元划分方法评价及优选-吕明针-岩性油气藏-201502

EvaluationandoptimizationofflowunitdivisionmethodsLUMingzhen1，LINChengyan1，ZHANGXianguo1，ZHANGJiangtao2（1.SchoolofGeosciences，ChinaUniversityofPetroleum，Qingdao266580，Shandong，China；2.TianjinCompany，CNOOC，Tianjin300452，China）Abstract：Researchonflowunitsissignificantforthestudiesofreservoirheterogeneityandremainingoildistribution,aswellasimprovingaccuracyofwellloginterpretationmodels.Methodsofflowunitidentificationarevarious,andtheirapplicabilityisalsodifferent.TakingWoilfieldinthePearlRiverMouthBasinasanexample,thispaperrespectivelyusedfourmethodstoidentifyflowunits,includingmodifiedstratigraphicLorenzplot,flowzoneindicator,integratedindexofreservoirheterogeneityandporethroataperture.BothmodifiedstratigraphicLorenzplotmethodandflowzoneindicatormethodarebasedonpermeabilityandporosityratio,soitisdifficulttoidentifytightreservoir.Porethroataperturemethodcanbeusedtoidentifytightreservoir,butitisdifficulttodifferentiatehighqualityreservoirandmeticuloustodividelowqualityreservoirs.Integratedindexofreservoirheterogeneitysynthesizesvariousqualitativeandquantitativeparameters,itdividestightreservoirasaseparatekindofflowunitwhichcanbeeffectivelydistinguishedfromotheroillayer,andthedivisionresultcanreflectreservoirheterogeneityreasonably,soitisthebestmethodforflowunitdivisioninthestudyarea.Keywords：flowunit；modifiedstratigraphicLorenzplot；flowzoneindicator；integratedindexofreservoirhetero-geneity；porethroataperture27120152LITHOLOGICRESERVOIRSVol.27No.1Feb.20151，1，1，2（1.（），，266580；2.（），300452）：、，，。W，4，。：Lorenz，；，，；，，，，、。：；Lorenz；；；：TE122.2+2：A：1673-8926（2015）01-0074-07：2014-04-21；：2014-07-16：“”（：41202092）“GR”（：2012M521366）：（1989-），，，。：（266580）66。E-mail：[e-mail]。201520152015/m2-12-1U2-1U-12-1U-22-1U-32-1L-12-1L-42-1U-12-1U-22-1L-12-1L-22-1L-32-1L-42-1L2-2U2-22-1L-22-1L-32-2LDEN/（g·cm-3）AC/（μs·m-1）1.952.95460130CN/%-15451420RILD/（Ω·m）0Hearn［1］，、，、。，。，、、、，、［2-4］。1993，Amaefule［5］———（FZI）。FZI，。Canas［6］LaCira“C1C”（IFCI）。Ti［7］Endicott，，、，4。Gunter［8］4———Winland-、、Lorenz（SMLP）Lorenz，。Aguilera［9-10］Pickett，（K/φ）-，，Rp35。Aguilera［10］Clarkson［11］，。Ahrimankosh［12］FZI，，Ward，。，FZI，Nooruddin［13］Izadi［14］。、、（IRH）、C。SMLP、FZI、IRH。4，，。1W，。63，、、、（1）。1Fig.1StratigraphiclithologyandsedimentarycharacteristicsofwesternpartofPearlRiverMouthBasin144014601480150015201540GR/API50150CAL/cm11140.220RILM/（Ω·m）0.220：75271271271，。：，，，、、；、，，，、；，，。ZJ2-1，，，，、、。2W，，，；，，；，，，。WZJ2-1，SMLP、FZI、IRH，。2.1Lorenz（SMLP）SMLPGunter［8］1997，FZI2［15］，。SMLP，K·h/μ（K，h，μ、），φ·Ct·h（φ，Ct，h、）。ZJ2-1USMLP，，5（FU1～FU5）（2）。SMLP，：，，；，，，，。，，、FU5FU2，FU1FU3，FU4，。2.2（FZI），。Amaefule［5］FZI，-。RQI-ΦZ，FZI1，，；FZI，。，、，FZI；、，、，FZI。，FZI，FZI。，FZI，［16-17］。ZJ2-1FZI（3），4，-。-（4），，。/%402LorenzFig.2FlowunitsdividedbymodifiedstratigraphicLorenzplotmethod6010080402000206080100FU1FU2FU3FU4FU5/%7620152015201512341/21231/31/2121/41/31/211Table1Judgmentmatrixofcomprehensiveinfluencingfactorsofheterogeneity4ZJ2-1FZI（a）（b）-Fig.4Relationshipbetweenporosityandpermeabilitybefore（a）andafter（b）flowunitdivisionbyFZImethodofZJ2-1oilgroup3Fig.3Cumulativeprobabilitydistributionofflowzoneindicator2.3（IRH）IRH（973）“”［3］。IRH［18］。ZJ2-1，、、，，0～1。，（1），，，IRH=0.47K+0.28φ+0.16Vsh+0.09X（1）：K，φ，Vsh、；X。。IRH0～1，0，1。，IRH（5），。2.4Hartmann［19］“”。Martin［20］，0.55Fig.5Cumulativeprobabilitydistributionofintegratedindexofreservoirheterogeneity110010001.01.52.0/%10000.01000.0100.010.01.00.1/mD5010152025303540/%y=6.8215e0.1618xR2=0.8215y=4.4233e0.1574xR2=0.8863y=0.01e0.3168xR2=0.9896y=1.4241e0.1783xR2=0.898110000.01000.0100.010.01.00.1/mD5010152025303540/%y=0.0334e0.3128xR2=0.8610.22010080000.40.81.0/%60400.6（a）（b）：77271271271/%60，。。，35%（R35）。3：，R35≥10μm，；，4μm≤R3510μm，；，R35＜4μm，（6）。，，。，，，。Aguilera［10］，、。Clarkson［11］，，。34A，B2，、、，4。（7），，、、，4。SMLPFZIIRH，，，、，，；SMLPFZIIRH—，、，，，；SMLPFZIIRH，，、，，、。，AB2。A1406～1412m229m3，2495m3［7（a）］，。IRHSMLP，，FZI，，。，，，，2。SMLP，，，。SMLPFZI，。，—，，，。B1394～1402m285.1m3，3153m3［7（b）］，。IRH，SMLP，，SMLP；FZI，。B1413～1420m74m3，973m3［7（b）］，，6Fig.6Flowunitsdividedbyporethroataperturemethod0.010.101.0010.00100.001000.00/MPa1008040200▲▲▲▲▲▲78201520152015，，1394～1402m。，IRH，2：，，；，，/API/m/%IRHSMLPFZI/mD229m3，2495m32-1U-1/（g·cm-3）1.952.40/（μs·m-1）460230/%20357Fig.7Comparisonofflowunitsdividedbydifferentmethods（a）A（b）B50100/（Ω·m）0.220/（Ω·m）0.22005010010001400140514101415/m/%FZISMLPIRH/mD2-1U-12-1U-22-1U-32-1L-174m3，973m3285.1m3，3153m3/（g·cm-3）1.952.95/（μs·m-1）460130/%154550150/（Ω·m）0.220/（Ω·m）0.2200500.001100001400139014101420/API1015/cm：79271271271。，15%，10mD，、，。IRH（）（），，、，。4（1）W，，SMLP、FZI、IRH，。（2）SMLPFZI，。，，，。（3）IRH，，，，，。（References）：［1］HearnCL，EbanksWJJr，TyeRS.GeologicalfactorsinfluencingreservoirperformanceoftheHartzogDrawField，Wyoming［J］.Petrol.Tech.，1984，36：1335-1344.［2］，，.［J］.，2008，3（11）：810-817.YueDali，WuShenghe，LinChengyan.Researchprogressinflowunitofclasticreservoir［J］.SciencepaperOnline，2008，3（11）：810-817.［3］，，，.［M］.：，2009：62-90.LinChengyan，LiHongnan，DongChunmei，etal.Simulationmodelofoilreservoirandremainingoilprediction［M］.Beijing：PetroleumIndustryPress，2009：62-90.［4］，，，.［J］.，2006，25（4）：21-26.YuanCaiping，YaoGuangqing，XuSihu