Experimental study and numerical modeling for enhancing oil recovery from carbonate reservoirs by nanoparticle flooding

被引：20

作者：

Sepehri, Mehrdad ^{[1
]}

Moradi, Babak ^{[1
,2
]}

Emamzadeh, Abolghasem ^{[1
]}

Mohammadi, Amir H. ^{[3
]}

机构：

[1] Islamic Azad Univ, Fac Petr Engn, Sci & Res Branch, Tehran, Iran

[2] Iranian Cent Oil Fields Co, Tehran, Iran

[3] Univ KwaZulu Natal, Discipline Chem Engn, Sch Engn, Howard Coll Campus,King George V Ave, ZA-4041 Durban, South Africa

来源：

OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES | 2019年 / 74卷

关键词：

WETTABILITY ALTERATION; WET CARBONATE; SURFACTANT; VISCOSITY; CALCITE;

D O I：

10.2516/ogst/2018080

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Nowadays, nanotechnology has become a very attractive subject in Enhanced Oil Recovery (EOR) researches. In the current study, a carbonate system has been selected and first the effects of nanoparticles on the rock and fluid properties have been experimentally investigated and then the simulation and numerical modeling of the nanofluid injection for enhanced oil recovery process have been studied. After nanofluid treatment, experimental results have shown wettability alteration. A two-phase flow mathematical model and a numerical simulator considering wettability alteration have been developed. The numerical simulation results show that wettability alteration from oil-wet to water-wet due to presence of nanoparticles can lead to 8 10% increase in recovery factor in comparison with normal water flooding. Different sensitivity analyses and injection scenarios have been considered and assessed. Using numerical modeling, wettability alteration process and formation damage caused by entrainment and entrapment of nanoparticles in porous media have been proved. Finally, the net rate of nanoparticles' loss in porous media has been investigated.

引用

页数：16

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