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Investigation of the minimum miscibility pressure for injection of two different gases into two Iranian oil reservoirs: experimental and theory
, Article Canadian Journal of Chemical Engineering ; Volume 95, Issue 5 , 2017 , Pages 1014-1020 ; 00084034 (ISSN) ; Keshavarzi, B ; Ghotbi, C ; Sharif University of Technology
Wiley-Liss Inc
2017
Abstract
The results of the minimum miscibility pressure (MMP) determination for miscible injection of CO2 and an associated gas of one of Iranian gas reservoirs into two different oil samples using a slim tube device are presented. For an effective determination of the MMP cell-to-cell slim tube simulation was performed for each case before performing the slim tube experiment and the results were used to determine the pressure intervals in the slim tube experiment. A comparison between the measured MMP values from the slim tube experiments and those calculated by cell-to-cell simulation revealed that the cell-to-cell simulation can be a substitute to slim tube test in cases where time is a primary...
Empirical Study of Minimum Miscibility Pressure Determination of CO2 and Associate Gas in Iranian Off-shore Oil
, M.Sc. Thesis Sharif University of Technology ; Tghikhani, Vahid (Supervisor) ; Ghotbi, Cyrus (Supervisor) ; Badakhshan, Amir (Supervisor)
Abstract
The main EOR method after heat recovery is gas injection. Minimum miscibility pressure is one of the parameters that affect gas injection. This project includes computational and laboratory sections to estimate the MMP. The MMP were estimated during the injection of CO2, Ga, Gb and methane gases into two oil samples. In the computational part of the project, MMP is estimated through cell to cell simulation and using Peng_Robinson equation of state. Also, the MMP is measured by using slim tube apparatus which is used so widely in the industry. According to the results, CO2 has the lowest miscibility pressure among other gases. It was miscible into oil even at pressures near the bubble...
Prediction of Minimum Miscibility Pressure of CO2 and Associate Gas with
Iranian Offshore Crude Oils
,
M.Sc. Thesis
Sharif University of Technology
;
Ghotbi, Sirous
(Supervisor)
;
Taghikhani, Vahid
(Co-Advisor)
Abstract
In this study, two approaches were applied for estimating Minimum Miscibility Pressure (MMP). An oil sample from Yadavaran Field has examined by means of Carbon Dioxide Gas, South Pars Gas, and Association Gas in experimental approach. The experimental method used for estimating MMP is Slim-Tube. This kind of method is applied in industry widely. The results indicate that the MMP of Carbon Dioxide is low which denotes that the gas is even miscible around the Bubble Point Temperature of the oil sample. Moreover, the MMP of Association Gas and South Pars Gas is 3962 and 5150 psia, respectively. In simulation approach, Cell to Cell simulation method is used to estimate the MMP of the oil sample...