文档介绍：--------------------------------------------------------------------------------宋长伟李刚郭志强摘要宋长伟,李刚,,1999,23(3):176,179硼中子寿命测井是向地层中注入高俘获截面的硼酸,从而使中子寿命测井也适用于低矿化度地区。对于低孔低渗储层,由于束缚水和残余油的含量很高,可动流体所占比例已很少,允许的误差范围也小,在定量求取剩余油饱和度时,具有不同于高孔高渗储层的新特点。文中结合二连油田地质特征,推导分析了低渗透砂岩储层的剩余油饱和度方程。最后用这一方程处理了二连油田一口水淹井的硼中子寿命测井数据,并作了详细分析,取得了很好的地质效果。主题词:测井解释中子寿命测井低矿化度硼化物剩余油饱和度水淹井二连盆地ABSTRACTSongChangwei,LiGang,GuoZhiqiang(CalculatingRemainingOilSaturationofSandstoneReservoirWithlowPermeabilityUsingBorite-NeutronLifetimeLog(WLT,1999,23(3):176,179Neutronlifetimelogging(NLL)isgenerallyusedincasedholefordeterminingremainingoilsaturationofformationwithhighsalinity(Duetoinjectionofboricacidwithlargeneutroncapturecrosssection,NLLisalsoadaptabletoformationwithlowsalinity(Forformationwithlowporosityandlowpermeability,thesaturationsofirreduciblewaterandremainingoilarehigh,andthatofmovablefluidisverylow(binedwiththegeologicalfeaturesofErlianoilfield,theequationofremainingoilsaturationforsandstonereservoirwithlowpermeabilityisgivenherein(TheBNLLdatafromonewater-floodedwellinErlianoilfieldisprocessedwiththeaboveequation(Theanalysisresultshowsthatthegeologicaleffectisverygood(SubjectTerms:loginterpretationneutronlifetimelogginglowsalinityboriteremainingoilsaturationwater-floodedwellErlianbasin引