Describing a strategy to estimate the CO<sub>2</sub>-heavy oil minimum miscibility pressure based on the experimental methods

Ghorbani, Mehdi; Gandomkar, Asghar; Montazeri, Gholamhosein

doi:10.1080/15567036.2018.1549170

Cited by 19 publications

(17 citation statements)

References 19 publications

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“…In fact, the VIT measurement is accompanied by error, and thus the MMP values obtained by this method needs to be corrected. In confirmation, regarding our previous works [13,14], the measured MMP by VIT method (Pendant drop method) is distinguishably different from that by the slim tube test. Actually, it is typically overestimated by the VIT method, especially for light oils, and therefore the extrapolated MMP at which the IFT is zero does not match with the estimated MMP by the slim tube.…”

Section: Introductionsupporting

confidence: 71%

“…To make it dry, air was flowed through porous medium for 24 hour and then it was vacuumed for 10 hour. Afterward, the dead oil along with CO 2 (1cc/hr for 1.2 pore volumes [13,21]) were injected to the slim tube. The outlet pressure was kept constant by means of the back pressure regulator.…”

Section: Slim Tube Testmentioning

confidence: 99%

“…This set of experiments was conducted at different pressures involving 13.78, 17.23, 24.13, 27.57, 31.02, 37.92 psi and the temperature of 80 °C. For each pressure, oil swelling factor was considered to obtain recovery, and the corresponding gas recovery and production rate were recorded [13].…”

Section: Slim Tube Testmentioning

confidence: 99%

“…In addition, asphaltene precipitation can block its porous medium, yielding inaccurate results. To address the faults associated with the slim tube test, the Vanishing Interfacial Tension (VIT) technique can be used as a satisfactory substitute since it is comparatively more cost-effective and time-saving [5,[12][13][14]. However, the MMP measured by VIT test is usually higher than that by the slim tube in a CO 2 / light oil system.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of Asphaltene Content Effect on Crude Oil/CO2 Minimum Miscibility Pressure

Ghorbani

Gandomkar

Montazeri

et al. 2020

Period. Polytech. Chem. Eng.

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Minimum Miscibility Pressure (MMP) is regarded as one of the foremost parameters required to be measured in a CO2 injection process. Therefore, a reasonable approximation of the MMP can be useful for better development of injection conditions as well as planning surface facilities. In this study, the impact of asphaltene content ranging from 3.84 % to 16 % on CO2/heavy oil MMP is evaluated. In this respect, slim tube miscibility and Vanishing Interfacial Tension (VIT) tests are used. Regarding the VIT test, the Interfacial Tension (IFT) is measured by means of two methods including pendant drop and capillary apparatuses, and thereafter the MMP measurement error between slim tube and VIT methods are calculated. Based on the results, by increasing the asphaltene content, the measured MMP by slim tube method increases linearly while that by VIT follows no clear trend. The results also indicate that there is an asphaltene content range within which the MMP error between slim tube and VIT tests is minimized. IFT measurement by pendant drop and Capillary Glass Tube (CGT) methods show that by increasing asphaltene content up to 10.15 %, IFT declines, whereas for further increase in content, IFT increases because of the irregular dispersion of asphaltene in oil droplets.

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Section: Introductionsupporting

confidence: 71%

Section: Slim Tube Testmentioning

confidence: 99%

Section: Slim Tube Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Investigation of Asphaltene Content Effect on Crude Oil/CO2 Minimum Miscibility Pressure

Ghorbani

Gandomkar

Montazeri

et al. 2020

Period. Polytech. Chem. Eng.

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“…Carbon dioxide injection has the advantages of wide application, low cost, significantly improved oil recovery [10][11][12]. At the same time, carbon dioxide flooding can solve the problem of carbon dioxide sequestration to a certain extent, reduce greenhouse gas emissions into the atmosphere, and alleviate the pressure of the environmental pollution [13][14][15][16][17][18]. So under the background of energy shortage, energy conservation and emission reduction, carbon dioxide flooding has a broad application prospect [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Research for reducing the Minimum Miscible Pressure of crude oil and carbon dioxide by injecting citric acid isobutyl ester

Fan

Zhao

et al. 2021

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Carbon dioxide miscible flooding has become one of the important technologies for improving oil recovery. The Minimum Miscible Pressure (MMP) is the key parameter to realize miscible flooding. As the MMP in the research area is higher than the formation fracture pressure, miscible flooding cannot be formed. To address this problem, it is necessary to find a way to reduce the MMP. Citric acid isobutyl ester is chosen to reduce the MMP of carbon dioxide and crude oil in this research. The effect of citric acid isobutyl ester on reducing the MMP was measured by the method of long-slim-tube displacement experiment. The experiment results show that the MMP is 29.6 MPa and can be obviously reduced by injecting the slug of citric acid isobutyl ester. The MMP could decrease gradually with constantly adding the injected slug of citric acid isobutyl ester, but the decrease becomes smaller and smaller. The optimum injected slug size of the chemical reagent is 0.003 PV. Under the condition of the slug size, the MMP is reduced to 23.5 MPa and the reduction is 6.1 MPa.

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Research for reducing minimum miscible pressure of crude oil and carbon dioxide and miscible flooding experiment by injecting citric acid isopentyl ester

Zhao

Fan

et al. 2020

Arabian Journal of Chemistry

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Describing a strategy to estimate the CO₂-heavy oil minimum miscibility pressure based on the experimental methods

Cited by 19 publications

References 19 publications

Experimental Investigation of Asphaltene Content Effect on Crude Oil/CO2 Minimum Miscibility Pressure

Experimental Investigation of Asphaltene Content Effect on Crude Oil/CO2 Minimum Miscibility Pressure

Research for reducing the Minimum Miscible Pressure of crude oil and carbon dioxide by injecting citric acid isobutyl ester

Research for reducing minimum miscible pressure of crude oil and carbon dioxide and miscible flooding experiment by injecting citric acid isopentyl ester

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Describing a strategy to estimate the CO2-heavy oil minimum miscibility pressure based on the experimental methods

Cited by 19 publications

References 19 publications

Experimental Investigation of Asphaltene Content Effect on Crude Oil/CO2 Minimum Miscibility Pressure

Experimental Investigation of Asphaltene Content Effect on Crude Oil/CO2 Minimum Miscibility Pressure

Research for reducing the Minimum Miscible Pressure of crude oil and carbon dioxide by injecting citric acid isobutyl ester

Research for reducing minimum miscible pressure of crude oil and carbon dioxide and miscible flooding experiment by injecting citric acid isopentyl ester

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Describing a strategy to estimate the CO₂-heavy oil minimum miscibility pressure based on the experimental methods