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《低渗透油藏注空气提高采收率物理模拟实验.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、2011年l2月大庆石油地质与开发Dec..2011第30卷第6期PetroleumGeologyandOilfieldDevelopmentinDaqingV01.3ONo.6DOI:10.3969/J.ISSN.1000-3754.2011.06.030低渗透油藏注空气提古同木盈收率物理模拟实验刘尚奇王伯军孔凡忠刘双卯陈亚平王家春(1.中国石油勘探开发研究院提高采收率国家重点实验室,北京100083;2.大庆油田有限责任公司海拉尔石油勘探开发指挥部,内蒙古呼伦贝尔021000)摘要:为了确定轻质油藏注空气提高原油采收率技术在海塔油田贝中次凹区块应用的可行性,根据注空气的主要技术原
2、理,设计了水驱和空气驱驱油效率对比实验、细长管空气驱低温氧化实验、燃烧管空气驱高温氧化实验和产出气体溶胀实验。研究表明:海塔油田空气驱比水驱驱油效率高22.19%;注空气后油藏中可以发生低温氧化反应,且氧化随温度升高加速进行;取得了低温氧化反应动力学参数活化能和指前因子;得到了产出气组分变化关系及产出气溶于原油后溶解度、黏度、密度和体积系数的变化。验证了注空气低温氧化采油技术原理,为轻质油藏注空气开发技术的矿场实施提供了可靠依据。关键词:低渗透油藏;空气驱油技术;低温氧化;物理模拟实验中图分类号:TE357.4文献标识码:A文章编号:1000—3754(2011)06-()1434)
3、5PHYSICALSIMULATIoNEXPERIMENToFAIR-INJECTIoNEoRINLoW-PERMEABILITYOILRESERVOIRSLIUShangqi,WANGBojun,KONGFanzhong,LIUShuangmao,CHENYaping,WANGJiachun(1.NationalKeyLaboratoryofEnhancedOilRecovery,PetroChinaResearchInstituteofPetroleumExplorationandDevelopment,Beng100083,China;2.HailarPetroleumExpl
4、orationandDevelopment.HeadquartersofDaqingOilfieldCompanyLtd.,Hulunbei’er021000,China)Abstract:Inordertodeterminethefeasibilityofapplyinglight--oilair-injectionEORtechnologyinBeizhongSub--sagofHailar—TamsagOilfield,thecontrastexperimentofthedisplacementeficiencyofwaterfloodingandair—injec—tiond
5、isplacement,slimetubelow-temperatureoxidationtestofair—injectiondisplacement,combustiontubehigh-temperatureoxidationtestofair-injectiondisplacementandswellingexperimentofproducedgasaredesignedac·-cordingtomaintechnologicaltheoryofairinjection.Thestudyshowsthatthedisplacementeficiencyofair-injec
6、-tiondisplacementis22.19%higherthanthatofwaterflooding.Lowtemperatureoxidationmayoccurinreservoirsafterairinjection,andmoreovertheoxidationmayacceleratewiththeincreaseoftemperature.Thekineticparame—tersoflow—temperatureoxidationreaction,i.e.activationenergyandpre—exponentialfactor。areobtained.T
7、hecomponentchangerelationofproducedgasandthechangeofsolubility,viscosity,densityandvolumefactorofpro-ducedgasafteritsdissolveincrudeoilareobtained.Thetechnicalprincipleofair—injectionlow—temperatureoxida-收稿日期:2011-01-06改回日期:2011-0
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