CO_2驱最小混相压力预测新方法
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摘要
油藏CO_2驱开发中,最小混相压力(MMP)是驱油效果评价的一个重要基础参数。本文从溶解度参数计算出发,结合多组油样的MMP实验测定结果,提出了一种简单的CO_2驱油MMP预测方法。运用本方法,仅需要油藏温度、原油粘度两个参数,即可较好的预测CO_2驱最小混相压力。本文运用该方法举例计算了油藏温度、原油分子量对MMP的影响规律。该方法的提出实现了MMP的快速预测,适用于CO_2驱油潜力区块筛选阶段的混相能力评价,适合现场推广应用。
Minimum miscibility pressure(MMP)is an important parameter of oil displacement effect evaluation in CO_2 flooding.Using the solubility parameter calculation method,and combined with the experimental data of minimum miscibility pressure(MMP)determination,this paper explores a simple MMP prediction method.Using this method,which only reservoir temperature and crude oil viscosity needed,Satisfactory performance results is obtained.Use this method,this paper discussed Influences of temperature and crude oil molecular weight on MMP.The proposed method realizes fast prediction of MMP,suitable for application in oil field screening phase for CO_2 flooding evaluation.
Minimum miscibility pressure(MMP)is an important parameter of oil displacement effect evaluation in CO_2 flooding.Using the solubility parameter calculation method,and combined with the experimental data of minimum miscibility pressure(MMP)determination,this paper explores a simple MMP prediction method.Using this method,which only reservoir temperature and crude oil viscosity needed,Satisfactory performance results is obtained.Use this method,this paper discussed Influences of temperature and crude oil molecular weight on MMP.The proposed method realizes fast prediction of MMP,suitable for application in oil field screening phase for CO_2 flooding evaluation.
引文
[1]郝永卯,陈月明,于会利.CO2驱最小混相压力的测定与预测[J].油气地质与采收率,2005,12(6):64~66.
[2]武毅,司勇.欢26块地层油与CO2最小混相压力研究[J].科学技术与工程,2011,11(26):6440~6443.
[3]彭宝仔,罗虎,陈光进,等.用界面张力法测定CO2与原油的最小混相压力[J].石油学报,2007,28(3):93~95.
[4]郑强,程林松,黄世军,等.低渗透油藏CO2驱最小混相压力预测研究[J].特种油气藏,2010,17(5):67~69.
[5]赵明国,周海菲,王谦.原油与CO2驱最小混相压力预测方法研究[J].西部探矿工程,2007,(12):60~62.
[6]E.A.Lange.Correlation and Prediction of Residual Oil Saturation for Gas-InjectionEnhanced Oil-Recovery Processes[J].SPE35425,1998,1(2):127~133.
[7]杨胜来.魏俊之.油层物理[M].北京:石油工业出版社,2004:80~106.
[8]P.M.Jarrell et.cl.Practical Aspects of CO2Flooding[M].Texas:SPE inc.2002:191~206.
[2]武毅,司勇.欢26块地层油与CO2最小混相压力研究[J].科学技术与工程,2011,11(26):6440~6443.
[3]彭宝仔,罗虎,陈光进,等.用界面张力法测定CO2与原油的最小混相压力[J].石油学报,2007,28(3):93~95.
[4]郑强,程林松,黄世军,等.低渗透油藏CO2驱最小混相压力预测研究[J].特种油气藏,2010,17(5):67~69.
[5]赵明国,周海菲,王谦.原油与CO2驱最小混相压力预测方法研究[J].西部探矿工程,2007,(12):60~62.
[6]E.A.Lange.Correlation and Prediction of Residual Oil Saturation for Gas-InjectionEnhanced Oil-Recovery Processes[J].SPE35425,1998,1(2):127~133.
[7]杨胜来.魏俊之.油层物理[M].北京:石油工业出版社,2004:80~106.
[8]P.M.Jarrell et.cl.Practical Aspects of CO2Flooding[M].Texas:SPE inc.2002:191~206.