Results 221 to 230 of about 1,402 (263)
Some of the next articles are maybe not open access.
Spontaneous Imbibition in Low Permeability Carbonates
Energy Sources, 2005Spontaneous imbibition is important in oil recovery from fractured and low permeability tight gas reservoirs. Gas-water spontaneous imbibition experiments were conducted using low permeability heterogeneous limestone core plugs. The interfacial tension was changed by adding differing amounts of alcohol to water.
Can Ulas Hatiboglu +2 more
openaire +1 more source
Estimation of Imbibition Capillary Pressure Curves from Spontaneous Imbibition Data
Energy & Fuels, 2009A closed-form solution for calculating imbibition capillary pressure from experimental data has been derived on the basis of the assumption of a constant capillary diffusion coefficient combined with Corey functions for the relative permeability curves. The solution is almost similar to the capillary pressure correlation reported by Skjaeveland et al. (
openaire +1 more source
Spontaneous imbibition in parallel layers of packed beads
The European Physical Journal E, 2017The imbibition of a wetting fluid in a homogeneous porous medium follows the diffusion-like behavior described by Washburn. The impregnation of a two-layered porous medium by a wetting fluid due to capillary action has been previously described to have two fronts, one saturating the medium and the other, leading front, which propagates in finer pores ...
S, Ashraf +3 more
openaire +2 more sources
Journal of Petroleum Science and Engineering, 2019
Abstract In this work, we have theoretically studied the imbibition process related to a block in a fractured carbonate reservoir under an assumed constant, vertical temperature gradient, GT. An analytical solution to an ordinary differential equation we developed has been obtained using a computer program, and the original Washburn law normally ...
Mumuni Amadu, Michael J. Pegg
openaire +1 more source
Abstract In this work, we have theoretically studied the imbibition process related to a block in a fractured carbonate reservoir under an assumed constant, vertical temperature gradient, GT. An analytical solution to an ordinary differential equation we developed has been obtained using a computer program, and the original Washburn law normally ...
Mumuni Amadu, Michael J. Pegg
openaire +1 more source
In situ saturation development during spontaneous imbibition
Journal of Petroleum Science and Engineering, 2002The in situ saturation development for reservoir core plugs was monitored during spontaneous imbibition using magnetic resonance imaging (MRI). The images monitored the movement of the imbibition front and the saturation change across the front as a function of initial water saturation. At zero initial water saturation, the water-front exhibited a very
B.A Baldwin, E.A Spinler
openaire +1 more source
Spontaneous Imbibition and Imbibition Oil Recovery in Tight Rocks
2017Advances in the development of unconventional resources have led to a surge in North American oil production. For example, tight oil production has pushed the U.S. crude supply to over 9% of world total production. Therefore, petrophysical characterization of such low-permeability rocks, has become increasingly important for petroleum engineers ...
openaire +1 more source
On nonequilibrium models of spontaneous countercurrent imbibition
Computational Geosciences, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Torsu, Prosper K., Aryana, Saman A.
openaire +1 more source
On Barenblatt's Model of Spontaneous Countercurrent Imbibition
Transport in Porous Media, 2004Water imbibition is a critical mechanism of secondary oil recovery from fractured reservoirs. Spontaneous imbibition also plays a significant role in storage of liquid waste by controlling the extent of rock invasion. In the present paper, we extend a model of countercurrent imbibition based on Barenblatt's theory of non-equilibrium two-phase flow by ...
Dmitry Silin, Tad Patzek
openaire +1 more source
Characterization of Wettability From Spontaneous Imbibition Measurements
Annual Technical Meeting, 1994Abstract Of the many methods of characterizing wettability of a porous medium, the most commonly used are the Amott test and the USBM test. The Amott test does not discriminate adequately between systems that give high values of wettability index to water and are collectively described as very strongly water-wet ...
S.M. Ma, X. Zhang, N.R. Morrow, X. Zhou
openaire +1 more source
Solvent-enhanced Spontaneous Imbibition in Fractured Reservoirs
EAGE Annual Conference & Exhibition incorporating SPE Europec, 2013Abstract Oil recovery in fractured reservoirs by water flooding critically depends on the wetting properties of the matrix blocks between the fractures. The recovery from oil-wet reservoirs is small. In incompletely oil-wet systems, the presence of initial water may change the wettability characteristics so that imbibition and some oil ...
Mohammad Chahardowli +3 more
openaire +1 more source