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1、多相流体模型应用的范围版权：BharathRao1998年5月18日目录Duns和活性氧相关Hagedorn和棕色的相关Orkiszewski相关Beggs和布里尔相关一般建议参考资料摘要Fourmultiphaseflowmodelsorcorrelations(Duns&Ros,Hagedorn&Brown,Orkiszewski,andBeggs&Brill)arecurrentlyavailableinHydraforpredictingthepressureprofileinawell.Therangeofap
2、plicabilityofthemultiphaseflowmodelsisdependentonseveralfactorssuchas,tubingsizeordiameter,oilgravity,gas-liquidratio,and,two-phaseflowwithorwithoutwater-cut.Theeffectofeachofthesefactorsonestimatingthepressureprofileinawellisdiscussedseparatelyforallthemultiphas
3、emodelsconsidered.Areasonablygoodperformanceofthemultiphaseflowmodels,withinthecontextofthisdocument,isconsideredtohavearelativeerror(betweenthemeasuredandpredictedvaluesofthepressureprofile)lessthanorequalto20%.四多相流体模型或相关性(Duns和活性氧,Hagedorn&Brown,Orkiszewski,Beg
4、gs和布里尔)目前供应Hydrafor预测其压力剖面在一口井里。标准的适用范围的多相流体模型是取决于几个因素,如、油管大小或直径、石油地心引力,气液比,两相流有或没有water-cut。效果每个这些因素的估算压力剖面问题分别井为所有的多相模型考虑。一个合理可靠的性能模型,研究多相流动的上下文以内这个文件,可以被认为是两个人之间的相对误差测量与预测值进行压力剖面)小于或等于20%。Duns&RosCorre-lationTheDuns&Roscorrelationisdevelopedforverticalflowofga
5、sandliquidmixturesinwells.Thiscorrelationisvalidforawiderangeofoilandgasmixturesandflowregimes.Althoughthecorrelationisintendedforusewith.dry.oil/gasmixtures,itcanalsobeapplicabletowetmixtureswithasuitablecorrection.Forwatercontentslessthan10%,theDuns-Roscorrelat
6、ion(withacorrectionfactor)hasbeenreportedtoworkwellinthebubble,slug(plug),andfrothregions.ThepressureprofilepredictionperformanceoftheDuns&Rosmethodisoutlinedbelowinrelationtotheseveralflowvariablesconsidered:Duns和活性氧的相关,设计开发了垂直流动混合物气体或液体在威尔斯。这种关系是有效的广泛的油气混合物和流量变
7、化。虽然相关是专为使用与.dry.油气混合物,它也可以适用于湿混合物和适合的修正。为水份含量低于10%,Duns-Ros相关(修正系数)被报道来合作得很好,这一泡沫的时候,塞(塞),泡沫地区。压力剖面的预测性能的方法Duns和活性氧简述以下与几个流量不同考虑:TubingSize.Ingeneral,thepressuredropisseentobeoverpredictedforarangeoftubingdiametersbetween1and3inches.!管材的尺寸。一般来说,其压力损失预测可以看到在为一系列油
8、管直径1到3英寸。OilGravity.Goodpredictionsofthepressureprofileareobtainedforabroadrangeofoilgravities(13-56°API).!着重API)。°石油重力。良好的预测的压力剖面上获得了广泛的油(13-56API)。Gas-Liquid
