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November 20-21, 2019 | Berlin, Germany
OF EXCELLENCE
IN INTERNATIONAL
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ANALYTICAL CHEMISTRY AND
CHROMATOGRAPHY METHODS
2
nd
International Conference on
Analytical Chemistry 2019
MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF GAS FLOW
COMPETITIVENESS IN POROUS MEDIA FOR ENHANCED OIL RECOVERY PROCESSES
Ofasa Abunumah, Priscilla O Ogunlude
and
Edward Gobina
The Robert Gordon University, United Kingdom
A study to investigate the comparative displacement profile of gases injected in Enhanced Oil Recovery (EOR)
has been conducted using ceramic porous material. Mathematical and experimental techniques were applied.
Data clustering analysis of a global EOR database identify relative gas-oil mobility ratio as a critical parameter
in evaluating displacement efficiency of gases. Series of experiments were subsequently conducted to deter-
mine the gas that could offer the optimal relative mobility profile. Seven gases and mixtures (CH
4
, CO
2
, N
2
, Ar,
He, 30%CO
2
/CH
4
and 28%O
2
/N
2
) were investigated using characteristic ceramic membranes (Pore sizes: 15nm,
200nm and 6000nm) at temperature and gauge pressure range of 295K–675K and 1atm-3atm respectively.
Data mining of the EOR database indicates that CO
2
gas is mostly applied to recover oil with low mobility
(0.064D.cp-1) while CH
4
gas is applied to highly mobile oil (1.680
D.cp-1). Experimental analysis reveals that
the performance of CO
2
in heavier oil could be explained by its comparatively low mobility factor (0.0602) as
against N
2
(0.0674) and CH
4
(0.0878). Further analysis indicates that through‘mobility-control’, N
2
and CH
4
gases
could be optimized to achieve CO
2
performance. Reservoir engineers could therefore use this knowledge to
effectively substitute the more expensive CO
2
with N
2
or CH
4
without compromising on oil recovery efficiency.
Ofasa Abunumah et al., J Chem Tech App 2019, Volume 3
Ofasa Abunumah is a Senior Petroleum Engineer in the Ministry of Petroleum Resources, Nigeria. Currently he is leading a Doctoral
research at the Centre for Process Integration and Membrane Technology in the Robert Gordon University. He has acquired qualifi-
cations in Chemical Engineering, Petroleum and Environmental Technology, Information Technology, Business and Accounting. He
has over 10years experience working in the oil and gas industry. He has facilitated crucial petroleum data management projects,
such as the Compendium of Petroleum Statistics. His recent research focus includes membrane technology, flow through porous
media and Enhanced Oil Recovery. His strengths include experimental, mathematical and cost modelling.
o.abunumah@rgu.ac.ukBIOGRAPHY
Journal of Chemical Technology and Applications | Volume 3