Numerical approach for enhanced oil recovery with surfactant flooding

作     者：Sadegh Keshtkar Morteza Sabeti Amir H.Mohammadi 

作者机构：Department of Petroleum EngineeringFaculty of Petroleum EngineeringPetroleum University of TechnologyAhwazIran Department of Chemical EngineeringIsfahan University of TechnologyIsfahanIran Institut de Recherche en Genie Chimique et Petrolier(IRGCP)Paris CedexFrance Thermodynamics Research UnitSchool of EngineeringUniversity of KwaZulu-NatalHoward College CampusKing George V AvenueDurban 4041South Africa Departement de Genie des Minesde la Metallurgie et des MateriauxFaculte des Sciences et de GenieUniversite LavalQuebec(QC)G1V 0A6Canada 

出 版 物：《Petroleum》 (油气（英文）)

年 卷 期：2016年第2卷第1期

页      面：98-107页

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

主　　题：Surfactant flooding Numerical simulation Finite difference Two phases-three component system Partition coefficient 

摘      要：The remained oil in the reservoir after conventional water-flooding processes,forms a dispersed phase in the form of oil drops which is trapped by capillary forces and is almost about 70%of the original oil in the place(OOIP).To reduce oil residual saturation in laboratory experiments and field projects,surfactant flooding is effective via decreasing the interfacial tension mobility ratio between oil and water *** of the role of design variables,like chemical concentrations,partition coefficient and injection rate in different performance quantities,considering a heterogeneous and multiphase oil reservoir is a critical stage for optimal *** demand for oil production from water-flooded reservoirs has caused an increasing interest in surfactant-polymer(SP)and alkali-surfactant-polymer(ASP).Modeling minimizes the risk of high cost of chemicals by improving our insight of *** the present paper,a surfactant compositional flood model for a three-component(water,petroleum and surfactant),two phase(aqueous and oleic)system is studied.A homogeneous,two-dimensional,isothermal reservoir with no free gas or alkali is *** governing equations are in three categories:the continuity equations for the transport of each component,Darcy s equation for the transport of each phase and other auxiliary *** equations are solved by finite-differences using a procedure implicit in pressure and explicit in *** validation of the model is achieved through comparing the modeling results with CMG simulators and BuckleyeLeverett *** results of modeling showed good agreement with CMG results,and the comparison with BuckleyeLeverett theory is explained according to different *** validation of the model,in order to investigate sensitivity analysis,the effects of system variables(partition coefficient,surface tension,oil viscosity and surface injection concentration)and performance variable(cumulative oil recovery)are