Experimental and Graphical Investigation on Oil Recovery by Buckley-Leveret Theory

Authors: Khwaja Naweed Seddiqi, Zabihullah Mahdi, Shigeo Honma

Abstract:

Recently increasing oil production from petroleum reservoirs is one of the most important issues in the global energy sector. So, in this paper, the recovery of oil by the waterflooding technique from petroleum reservoir are considered. To investigate the aforementioned phenomena, the relative permeability of two immiscible fluids in sand is measured in the laboratory based on the steady-state method. Two sorts of oils, kerosene and heavy oil, and water are pumped simultaneously into a vertical sand column with different pumping ratio. From the change in fractional discharge measured at the outlet, a method for determining the relative permeability is developed focusing on the displacement mechanism in sand. Then, displacement mechanism of two immiscible fluids in the sand is investigated under the Buckley-Leveret frontal displacement theory and laboratory experiment. Two sorts of experiments, one is the displacement of pore water by oil, the other is the displacement of pore oil by water, are carried out. It is revealed that the relative permeability curves display tolerably different shape owing to the properties of oils, and produce different amount of residual oils and irreducible water saturation.

Keywords: Petroleum reservoir engineering, relative permeability, two-phase flow, immiscible displacement in porous media, steady-state method, waterflooding.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1340110

References:

[1] R.C. Craft and M. Hawkins, Revised by R.E. Terry, “Applied Petroleum Reservoir Engineering,” (Prentice-Hall, 1991), pp.1-35.
[2] JX. Holdings, “Construction of Petroleum Reservoir,” http://www.hd.jx-group.co.jp acced on (02/ 2014) data10. (Translated in English by authors.).
[3] http://glossary.periodni.com/glossary.php?en=petroleum, acced on 03/ 2016.
[4] A.Y. Dandekar, “Petroleum Reservoir, Rock and Fluid Properties,” (CRC Press, 2013), pp.45-83, 205-268.
[5] S.E. Buckley and M.C. Leverett, “Mechanism of Fluid Displacement in Sands, Transactions AIME,” Vol.146, (1942), pp.107-116.
[6] J.N. Cernica, “Geotechnical Engineering: Soil Mechanics,” (John Wiley & Sons,Inc., 1995), pp.85-98.
[7] J. Nazari, F. Nasiry, N. Seddiqi and S. Honma, “Influence of Relative Permeability and Viscosity Ratio on Oil Displacement by Water in Petroleum Reservoir,” Proc. School of Eng. Tokai Univ., Vol.40 (2015), pp.15-20.
[8] “Principle of applied reservoir simulation”, John R. Fanchi.
[9] H.J. Morel-Seytoux, “Flow through Porous Media,” R.J.M. de Wiest ed., (Academic Press, 1969), pp.456-516.
[10] K. Aziz and A. Settari, “Petroleum Reservoir Simulation,” (Applied Science Publishers, 1979).
[11] Y. Tamai and S. Honma, “Experiments and Analysis on the Simultaneous Seepage of Pore-Water and Oils in Soils,” Proc. School of Eng. Tokai Univ., Vol.52, No.2 (Japanese, 2012), pp.217-223.
[12] K. N. Seddiqi, Z. Mahdi and S. Honma, “Laboratory Measurement of Relative Permeability of Oil and Water in Sand,” Proc. School of Eng. Tokai Univ., Vol.41 (2016), pp.47-51.
[13] F.A.L. Dullien, “Porous Media, Fluid Transport and Pore Structure,” (Academic Press1979), pp.303-309.
[14] G. Paul Willhite “Waterflooding” SPE Textbook Series, Volume 3, TX, USA 1986, pp.1-4, 60-76.
[15] A. Abubaker, K. Asghari, "Waterflooding Heavy Oil Reservoirs," VDM, USA, 2010, pp.1-4.