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| 1 | Review on application of nanoparticles for EOR purposes: A critical review of the opportunities and challenges显示文摘Nanoparticles have already gained attentions for their countless potential applications in enhanced oil recovery.Nano-sized particles would help to recover trapped oil by several mechanisms including interfacial tension reduction, impulsive emulsion formation and wettability alteration of porous media. The presence of dispersed nanoparticles in injected fluids would enhance the recovery process through their movement towards oil–water interface. This would cause the interfacial tension to be reduced. In this research, the effects of different types of nanoparticles and different nanoparticle concentrations on EOR processes were investigated. Different flooding experiments were investigated to reveal enhancing oil recovery mechanisms. The results showed that nanoparticles have the ability to reduce the IFT as well as contact angle, making the solid surface to more water wet. As nanoparticle concentration increases more trapped oil was produced mainly due to wettability alteration to water wet and IFT reduction. However, pore blockage was also observed due to adsorption of nanoparticles, a phenomenon which caused the injection pressure to increase. Nonetheless, such higher injection pressure could displace some trapped oil in the small pore channels out of the model. The investigated results gave a clear indication that the EOR potential of nanoparticle fluid is significant. | Yousef Kazemzadeh Sanaz Shojaei Masoud Riazi Mohammad Sharifi | 2019 | Chinese Journal of Chemical Engineering2019，27，2： | 12 |
| 2 | 采用新标度方程预测再渗吸作用下天然裂缝性储集层重力泄油采收率显示文摘通过数值模拟对比单孔隙介质和双孔隙介质模型模拟结果,验证了再渗吸对天然裂缝性油藏的显著影响,提出了再渗吸作用下基质岩块泄油过程新的控制方程;利用检测分析,得到了适用于再渗吸作用下标度基质岩块采收率曲线的无因次方程;通过方案设计,针对具有不同岩石和流体性质的实验方案,确定了该方程的适用范围,并对各方案进行了模拟。结果表明,该方法可用于估算通过再渗吸进入基质岩块的原油量,有助于天然裂缝性储集层泄油过程的精确模拟,能够较准确地预测采油前期至中期再渗吸作用下基质岩块的采收率;新的标度方程可用于双重介质模型以提高采收率预测的准确性。 | AGHABARARI Amirhossein GHAEDI Mojtaba RIAZI Masoud | 2020 | 石油勘探与开发2020，47，6： | 6 |
| 3 | The impact of connate water saturation and salinity on oil recovery and CO2 storage capacity during carbonated water injection in carbonate rock显示文摘Carbonated water injection(CWI)is known as an efficient technique for both CO2 storage and enhanced oil recovery(EOR).During CWI process,CO2 moves from the water phase into the oil phase and results in oil swelling.This mechanism is considered as a reason for EOR.Viscous fingering leading to early breakthrough and leaving a large proportion of reservoir un-swept is known as an unfavorable phenomenon during flooding trials.Generally,instability at the interface due to disturbances in porous medium promotes viscous fingering phenomenon.Connate water makes viscous fingers longer and more irregular consisting of large number of tributaries leading to the ultimate oil recovery reduction.Therefore,higher in-situ water content can worsen this condition.Besides,this water can play as a barrier between oil and gas phases and adversely affect the gas diffusion,which results in EOR reduction.On the other hand,from gas storage point of view,it should be noted that CO2 solubility is not the same in the water and oil phases.In this study for a specified water salinity,the effects of different connate water saturations(Swc)on the ultimate oil recovery and CO2 storage capacity during secondary CWI are being presented using carbonate rock samples from one of Iranian carbonate oil reservoir.The results showed higher oil recovery and CO2 storage in the case of lower connate water saturation,as 14%reduction of Swc resulted in 20%and 16%higher oil recovery and CO2 storage capacity,respectively. | Mahmood Shakiba Masoud Riazi Shahab Ayatollahi Mostafa Takband | 2019 | Chinese Journal of Chemical Engineering2019，27，7： | 4 |
| 4 | Experimental and theoretical investigation of CO_(2) mass transfer enhancement of silica nanoparticles in water显示文摘Nanofluids have novel characteristics that make them potentially useful for different applications.Realizing modest mass transfer enhancement in conventional nanofluids,in this study,mass-transfer of carbon dioxide in pure water and water-based nanofluids dispersed with silica nanoparticles at different initial pressures up to 15 MPa and at temperatures of 35℃ and 45℃ was investigated.Deionized water and two nanofluids at different concentrations with volume of 150 cm^(3) were used for this purpose.CO_(2) was brought in contact with each solution in a pressure-volume-temperature(PVT)cell with no mixer.Additionally,carbon dioxide diffusion coefficients at different pressures were estimated based on Fick's law.The obtained results demonstrated that water/silica nanofluid with 0.5 wt%and 0.1 wt%increased the carbon dioxide diffusion coefficient up to 39.2%and 11.9%compared to that in pure distilled water,respectively.Moreover,it was observed that the measured diffusion coefficient of carbon dioxide inwater increased with temperature rise from 35℃ to 45℃ at constant pressure.However,it could be seen that,the diffusion coefficient decreased with pressure at constant temperature.It was concluded that among the enhancement mechanisms of nanoparticles,(i.e.grazing effect and Brownian motion),Brownian motion would play the main role in mass transfer enhancement. | Soosan Farzani Tolesorkhi Feridun Esmaeilzadeh Masoud Riazi | 2018 | Petroleum Research2018，3，4： | 2 |
| 5 | Activating solution gas drive as an extra oil production mechanism after carbonated water injection显示文摘Enhanced oil recovery(EOR)methods are mostly based on different phenomena taking place at the interfaces between fluid–fluid and rock–fluid phases.Over the last decade,carbonated water injection(CWI)has been considered as one of the multi-objective EOR techniques to store CO2 in the hydrocarbon bearing formations as well as improving oil recovery efficiency.During CWI process,as the reservoir pressure declines,the dissolved CO2 in the oil phase evolves and gas nucleation phenomenon would occur.As a result,it can lead to oil saturation restoration and subsequently,oil displacement due to the hysteresis effect.At this condition,CO2 would act as insitu dissolved gas into the oil phase,and play the role of an artificial solution gas drive(SGD).In this study,the effect of SGD as an extra oil recovery mechanism after secondary and tertiary CWI(SCWI-TCWI)modes has been experimentally investigated in carbonate rocks using coreflood tests.The depressurization tests resulted in more than 25%and 18%of original oil in place(OOIP)because of the SGD after SCWI and TCWI tests,respectively.From the ultimate enhanced oil recovery point of view,the efficiency of SGD was observed to be more than one-third of that of CWI itself.Furthermore,the pressure drop data revealed that the system pressure depends more on the oil production pattern than water production. | Mahmood Shakiba Shahab Ayatollahi Masoud Riazi | 2020 | Chinese Journal of Chemical Engineering2020，28，11： | 2 |
| 6 | Viscous fingering and its effect on areal sweep efficiency during waterflooding: an experimental study显示文摘Viscous fingering is one of the main challenges that could reduce areal sweep efficiency during waterflooding in oil reservoirs. A series of waterflooding experiments were carried out in a Hele-Shaw cell at ambient temperature during which areal sweep efficiency was estimated and techniques to ease the fingering problem were examined. The onset and propagation of viscous fingers were monitored as a function of both injection rate and injection/production positions. Image processing techniques were utilized to quantitatively investigate the propagation of fingers. The experimental results show that, under specific conditions, increasing the number of finger branches could improve the areal sweep efficiency, whereas growth of a single narrow finger has a negative impact on oil displacement efficiency. According to the obtained results,increasing the injection rate improves the areal sweep efficiency up to a critical rate at which viscous fingers start to grow.The impact of heterogeneity of the medium on distributing the viscous fingers was also investigated by introducing two different arrangements of fractures in the model. The results show that fractures perpendicular to the direction of flow would distribute the displacing water more uniformly, while fractures in the direction of flow would amplify the unfavorable sweep efficiency. | Zahra Kargozarfard Masoud Riazi Shahab Ayatollahi | 2019 | Petroleum Science2019，16，1： | 2 |
| 7 | Continuous model for C7 plus fraction characterization of petroleum fluids 显示文摘 | RIAZI M R A | 1997 | Ind Eng Chem Res1997，36，： | 1 |
| 8 | Simplify property predictions显示文摘 | RIAZI M R DAUBERT T E | 1980 | Hydrocarbon Processing1980，3，： | 1 |
| 9 | Contributions of peripheral inflammation to seizure susceptibility:cytokines and brain excitability显示文摘 | Riazi K Galic MA Pittman QJ | 2010 | Epilepsy Res2010，89，1： | 1 |
| 10 | The synergistic effect of beta-boswellic acid and Nurr1 overexpression on dopaminergic programming of antioxidant glutathione peroxidase-1-expressing murine embryonic stem cells显示文摘 | Abasi M Massumi M Riazi G | 2012 | Neuroscience2012，，222： | 1 |
| 11 | Absorption of millimeter waves by human beings and its biological implications显示文摘 | GANDHI O P RIAZI A | 1986 | IEEE TransMicrowave Theory Techn1986，34，： | 1 |
| 12 | Rosiglitazone regulates ENaC and Na-K-2Cl cotransporter (NKCC2) abundance in the obese Zucker rat 显示文摘 | Riazi S Khan O Tiwari S | 2006 | Am J Nephrol2006，26，3： | 1 |
| 13 | Effect of local anaesthetic volume (20 vs 5 mL) on the efficacy and respiratory consequences of ultrasound-guided interscalene brachial plexus block 显示文摘 | Riazi S Carmichael N Awad I | 2008 | Br J Anaesth2008，101，4： | 1 |
| 14 | Characterization of lactosporin, a novel antimicrobial protein produced by Bacil- lus coagulans ATCC 7050显示文摘 | Riazi S Wirawan R E Badmaev V | 2009 | Journal of applied microbiolo- gy2009，106，4： | 1 |
| 15 | Mode of action and safe- ty of lactosporin, a novel antimicrobial protein produced by Bacillus coagulans ATCC 7050显示文摘 | Riazi S Dover S E Chikindas M L | 2012 | Journal of applied micro- biology2012，113，3： | 1 |
| 16 | Some Guidelines for Choosing a Characterization Method for Petroleum Fractions in Process Simulators显示文摘 | H.A. Aladwani M.R. Riazi | 2005 | Chemical Engineering Research and Design2005，，2： | 1 |
| 17 | Self-efficacy and self-management after stroke:a systematic review显示文摘 | Jones F Riazi A | 2011 | Disabil Rehabil2011，33，10： | 1 |
| 18 | Rapid diagnosis of Mycobacterium tuberculosis infection in children using interferon-gamma release assays (IGRAs)显示文摘 | Riazi S Zeligs B Yeager H | 2012 | Allergy Asthma Proe2012，33，3： | 1 |
| 19 | Physical properties of heavy petroleum fractions and crude oils显示文摘 | Riazi M R Al-Sahhaf T A | 1996 | Fluid Phase Equilibria1996，117，： | 1 |
| 20 | Rapid diagnosis of Myeobae- terium tuberculosis infection in children using interferon- gamma release assays (IGRAs)显示文摘 | Riazi S Zeligs B Yeager H | 2012 | Allergy Asthma Proc2012，33，3： | 1 |
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