4、nttostrikeawatersaturation.Inthispaper,weintroducedseveralwatersaturationpredictionmodelsandformulascommonlyusedinlowpermeabilityreservoir,andcomparedindetail.Since Archie's parametersrelatedtolithology,physicalproperties, thedirectionof crackdistribution a
5、ndotherrelevant,soit’sdifficulttodeterminethevolueoftheparametersa,b,mandn,whichresultedin thedifficultofdeterminingofthewatersaturation,andthefinalresultsisalwaysdifferencewiththeanalysis.Inthispaperwestudied therelationship between porosityandparameters,