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大小:521.38 KB
页数:7页
时间:2019-03-07
《稠油油藏蒸汽泡沫驱渗流机理》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第29卷第4期,辽宁石油化工大学学报V01.29No.42009年12月J()URNAI.OFLIAONINGUNIVERSITYOFPETROLEUM&CHEMICAl,TE('HNOI。OGYDec.2009文章编号:1672—6952I2009)04—0034—05稠油油藏蒸汽泡沫驱渗流机理齐宁1,李金发2,温庆志1,曲占庆1,张贵才1(1.中国石油大学(华东)石油工程学院,山东东营257061;2.中国石化胜利油田分公司滨南采油厂,山东滨州257600)摘要:针对吞吐开采后期稠油油藏压力大幅下降、
2、注汽汽窜等问题,研究了集洗油、调剖、降粘三效舍一的高温复合驱油体系。采用FCY泡沫剂作为三效舍一的高温复合驱油体系的发泡剂,利用稳态法测定了泡沫的封堵效果,通过渗流实验考察了渗流速度对封堵压差的影响及泡沫作用下气体渗流机理,并根据渗流机理实验结果,建立了阻力因子泡沫渗流模型。模型的计算结果与实验结果具有较好的一致性,模型在描述泡沫剪切变稀特性的同时,还考察了临界含水饱和度、毛管教指数等各参数对气体渗流的影响,为稠油油藏蒸汽泡沫驱提供了理论支持。关键词:泡沫驱;注蒸汽;渗流机理;稠油油藏;阻力因子中图分类号
3、:TE357.46文献标识码:Adoi:10.3696/j.issn.1672—6952.2009.04.010FoamFlowingMechanismsofSteam·—·——FoamFloodingforHeavy0ilReservoirsQINin91,LIJin—fa2,WENQing—zhil,QUZhan--qin91,ZHANGGui—cail(1.FacultyofPetroleumEngineering,ChinaUniversityofPetroleum(EastChina),Dong
4、yingShandong257061,P.R.China;2.BinnanOilProductionPlantofShengli伍所eld,SinoPec,BinzhouShandong257600,P.R.China)Received6July2009;revised31August2009;accepted9September2009withAbstract:Hightemperaturecompositefloodingsystemsoil—washing,profile—controlling,v
5、iscosity—reductionfunctionsweredeveloped.ItisusedtOsolvethesevereproblemswhichwerefacedinthelatedevelopmentstagesuchasheavyoilreservoirspressuredeclininggreatlyandineffectivesteamchannelinginhighpermeabilityzones,etc.FCYhightemperaturemultifunctionalfoame
6、rwasresearchedasfoamingagentofhightemperaturecompositefloodingsystems。andpluggingcapacityoffoamwasmeasuredbystablemethod.Effectsofpercolationvelocityonpluggingpressuredifferentialandgaspercolationmechanismundertheexistenceoffoamwereresearchedbypercolation
7、experiments.Moreover,theresistancefactorfoampercolationmodelwasbuiltupbasedonexperimentresultsoffoampercolationmechanism.Goodconsistencybetweenresultsfrommodelandexperimentresultswasfound,andshear—thinningbehavioroffoamisdescribedpreferably.Effectofwholep
8、arameters,suchascriticalwatersaturation,capillarynumber,ongaspercolationwasalsoperformed,andtheorysupportisforsteam—foaminheavyoilreservoirs.providedfloodingKeywords:Foamflooding;Steaminjection;Percolationmechanism;
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