Commenced in January 2007
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Reduction of MMP Using Oleophilic Chemicals

Authors: C. L. Voon, M. Awang

Abstract:

CO2 miscible displacement is not feasible in many oil fields due to high reservoir temperature as higher pressure is required to achieve miscibility. The miscibility pressure is far higher than the formation fracture pressure making it impossible to have CO2 miscible displacement. However, by using oleophilic chemicals, minimum miscibility pressure (MMP) could be lowered. The main objective of this research is to find the best oleophilic chemical in MMP reduction using slim-tube test and Vanishing Interfacial Tension (VIT) The chemicals are selected based on the characteristics that it must be oil soluble, low water solubility, have 4 – 8 carbons, semi polar, economical, and safe for human operation. The families of chemicals chosen are carboxylic acid, alcohol, and ketone. The whole experiment would be conducted at 100°C and the best chemical is said to be effective when it is able to lower CO2-crude oil MMP the most. Findings of this research would have great impact to the oil and gas industry in reduction of operation cost for CO2EOR which is applicable to both onshore and offshore operation.

Keywords: Enhanced Oil Recovery, Oleophilic Chemical, Minimum Miscibility Pressure, CO2 Miscible Displacement.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1094317

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References:


[1] Wu, Y., et al., A Study of Branched Alcohol Propoxylate Sulfate Surfactants for Improved Oil Recovery. Society of Petroleum Engineers.
[2] Ahmed, T., Minimum Miscibility Pressure from EOS. Petroleum Society of Canada.
[3] Gardner, J.W. and J.G.J. Ypma, An Investigation of Phase Behavior-Macroscopic Bypassing Interaction in CO2 Flooding.
[4] Hui, L.H., Penganggaran dan penentuan MMP CO2 untuk lapangan minyak Malaysia, in Petroleum Engineering. 1995, Universiti Teknologi Malaysia: Skudai, Johor, Malaysia.
[5] Djabbarah, N.F., Miscible oil recovery process using carbon dioxide and alcohol. 1990, Google Patents.
[6] Li, Q., et al., Solubility of solid solutes in supercritical carbon dioxide with and without cosolvents. Fluid Phase Equilibria, 2003. 207(1–2): p. 183-192.
[7] Montes, I., C. Lai, and D. Sanabria, Like Dissolves Like: A Guided Inquiry Experiment for Organic Chemistry. Journal of Chemical Education, 2003. 80(4): p. 447.
[8] Jarrell, P.M. and S.o.P. Engineers, Practical Aspects of CO2 Flooding. 2002: Society of Petroleum Engineers.
[9] Martin, D.F. and J.J. Taber, Carbon Dioxide Flooding.