TY - JOUR
T1 - Experimental Determination of Minimum Miscibility Pressure
AU - Ahmad, Waqar
AU - Vakili-Nezhaad, Gholamreza
AU - Al-Bemani, Ali Soud
AU - Al-Wahaibi, Yahya
N1 - Publisher Copyright:
© 2016 The Authors.
PY - 2016
Y1 - 2016
N2 - Minimum miscibility pressure (MMP) plays a great role in determining the displacement efficiency of different gas injection processes. Experimental techniques for MMP determination include industrially recommended slim tube, vanishing interfacial tension (VIT) and rising bubble apparatus (RBA). In this paper, MMP measurement study using slim tube and VIT experimental techniques for two different crude oil samples (M and N) both in live and stock tank oil forms is being presented. VIT measured MMP values for both'M' and'N' live crude oils were close to slim tube determined MMP values with 6.4 and 5% deviation respectively. Whereas for both oil samples in stock tank oil form, VIT measured MMP showed a higher unacceptable deviation from slim tube determined MMP. This higher difference appears to be related to high stabilized crude oil heavier fraction and lack of multiple contacts miscibility. None of the different nine deployed crude oil - CO2 MMP computing correlations could result in reliable MMP, close to slim tube determined MMP. Since VIT determined MMP values for both considered live crude oils are in close match with slim tube determined MMP values, it confirms reliable, reproducible, rapid and cheap alternative for live crude oil MMP determination. Whereas VIT MMP determination for stock tank oil case needed further investigation about stabilization / destabilization mechanism of oil heavier ends and multiple contacts miscibility development issues.
AB - Minimum miscibility pressure (MMP) plays a great role in determining the displacement efficiency of different gas injection processes. Experimental techniques for MMP determination include industrially recommended slim tube, vanishing interfacial tension (VIT) and rising bubble apparatus (RBA). In this paper, MMP measurement study using slim tube and VIT experimental techniques for two different crude oil samples (M and N) both in live and stock tank oil forms is being presented. VIT measured MMP values for both'M' and'N' live crude oils were close to slim tube determined MMP values with 6.4 and 5% deviation respectively. Whereas for both oil samples in stock tank oil form, VIT measured MMP showed a higher unacceptable deviation from slim tube determined MMP. This higher difference appears to be related to high stabilized crude oil heavier fraction and lack of multiple contacts miscibility. None of the different nine deployed crude oil - CO2 MMP computing correlations could result in reliable MMP, close to slim tube determined MMP. Since VIT determined MMP values for both considered live crude oils are in close match with slim tube determined MMP values, it confirms reliable, reproducible, rapid and cheap alternative for live crude oil MMP determination. Whereas VIT MMP determination for stock tank oil case needed further investigation about stabilization / destabilization mechanism of oil heavier ends and multiple contacts miscibility development issues.
KW - Heavier ends stability
KW - Interfacial tension
KW - Minimum miscibility pressure
KW - Multiple contacts miscibility
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U2 - 10.1016/j.proeng.2016.06.629
DO - 10.1016/j.proeng.2016.06.629
M3 - Conference article
AN - SCOPUS:85014053681
SN - 1877-7058
VL - 148
SP - 1191
EP - 1198
JO - Procedia Engineering
JF - Procedia Engineering
T2 - 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016
Y2 - 15 August 2016 through 17 August 2016
ER -