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1、JournalofOilandGasTechnology石油天然气学报,2017,39(4),1-9PublishedOnlineAugust2017inHans.http://www.hanspub.org/journal/jogthttps://doi.org/10.12677/jogt.2017.394031Semi-QuantitativeEvaluationofReservoirswithGasLoggingDatainXihuSagofEastChinaSeaShelfBasinZechaoLi,FaweiLu,LeiWangCNOOC(China)Co
2、.,Ltd.,ShanghaiBranch,ShanghaiEmail:lizch10@cnooc.com.cnthththReceived:May30,2017;accepted:Jun.7,2017;published:Aug.15,2017AbstractThereservoirsdiscoveredinXihuSagweremainlyconcentratedinPinghuFormationandHua-gangFormation,whichwerelowporosityandpermeabilitywithcomplexfluidproperties,a
3、ndthusitwasdifficultforaccuratelyidentifyingwithconventionalloggingmethods.Theadvantageofgasinterpretationwasthatitwasnotbasedontheparametersasformationwater,rockframe,mudcontentandmineralcontent,thereforeitworkedwellininterpretingfluidwithunknownsa-linityinlowresistance,lowporosityand
4、lowpermeabilityreservoirs.Itwasasupplementforlog-ginginterpretationespeciallyintheidentificationofcomplexhydrocarbonreservoirs.Inthisstudy,thedegassingefficiencywasobtainedfrommuddegassingexperimentandgaschromato-graphicanalysis,andthegascontentofthemudwasdeterminedthroughdegassingeffi
5、ciencyanalysis,thenitwasconvertedtorealgascontentoftheformationbasedonthedataofdrillingtime,displacementandboreholediameter.Combinedwiththecore,logging,porosityandotherrealdrillingdata,theformationgassaturationisobtainedfromundergroundrealgascontentandgasstateequation.KeywordsXihuSag,G
6、asLogging,DegassingEfficiency,GasContentinFormation,GasSaturationinFormation文章引用:李泽超,鲁法伟,王雷.东海陆架盆地西湖凹陷气测录井半定量评价研究[J].石油天然气学报,2017,39(4):1-9.DOI:10.12677/jogt.2017.394031李泽超等东海陆架盆地西湖凹陷气测录井半定量评价研究李泽超,鲁法伟,王雷中海石油(中国)有限公司上海分公司,上海作者简介:李泽超(1992-),男,助理工程师,现主要从事测录井研究与管理工作。Email:lizch10@cnooc.co
7、m.cn收稿日期:2017年5月30日;录用日期:2017年6月7日;发布日期:2017年8月15日摘要西湖凹陷目前已发现的储层主要集中在平湖组和花港组,属于低孔低渗储层,流体性质复杂,使用常规测井手段难以准确识别低孔低渗复杂油气层。气体解释的优点在于它不依赖于地层水、岩石骨架、泥质含量、矿物含量等参数,所以在低阻、低孔、低渗的“三低”储层,未知矿化度储层流体解释方面应用效果好。特别是在复杂油气层的识别方面对测井解释是一个补充。研究主要根据钻井液脱气试验和脱出气体的色谱分析,获取现场脱气仪的脱气效率,通过脱气效率分析获取钻井液含气量;结合钻时、排量、井径数据可转