A new numerical model of electrokinetic potential response during hydrocarbon recovery

Saunders, J. H.; Jackson, Matthew D.; Pain, Christopher C.

doi:10.1029/2006gl026835

Cited by 49 publications

(49 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the factor F given above, we find that C in agreement with the data in [6]. 7 10 /  = 0.86 VP a…”

Section: Electrokinetic Coupling Coefficientssupporting

confidence: 77%

“…Hydrogeological applications concern the study of water leakage from dams [1], groundwater flows in geothermal fields and volcanoes [2], estimation of water resources [3]. In electrochemistry, the above equation form a basis for managing microchip separations of analytes in nano-channels [4]; there is also an evidence that this equation find applications in hydrocarbon recovery [5,6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Electrokinetic Cross-Coupling Coefficient: Two-Scale Homogenization Approach

Shelukhin¹,

Yeltsov²,

Paranichev³

2011

WJM

View full text Add to dashboard Cite

By the two-scale homogenization approach we justify a two-scale model of ion transport through a layered membrane, with flows being driven by a pressure gradient and an external electrical field. By up-scaling, the electroosmotic flow equations in horizontal thin slits separated by thin solid layers are approximated by a homogenized system of macroscale equations in the form of the Poisson equation for induced vertical electrical field and Onsager's reciprocity relations between global fluxes (hydrodynamic and electric) and forces (horizontal pressure gradient and external electrical field). In addition, the two-scale approach provides macroscopic mobility coefficients in the Onsager relations. On this way, the cross-coupling kinetic coefficient is obtained in a form which does involves the  -potential among the data provided the surface current is negligible.

show abstract

“…With the factor F given above, we find that C in agreement with the data in [6]. 7 10 /  = 0.86 VP a…”

Section: Electrokinetic Coupling Coefficientssupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

The Electrokinetic Cross-Coupling Coefficient: Two-Scale Homogenization Approach

Shelukhin¹,

Yeltsov²,

Paranichev³

2011

WJM

View full text Add to dashboard Cite

show abstract

“…This formulation avoids the introduction of the zeta potential in describing the electrokinetic properties of porous media as done in most alternative models [3][4][5][6][7]. Our formulation emphasizes the role of the velocity of the water phase in playing a key-role in the electrokinetic properties of the porous material rather than focusing on the pressure field of the water phase.…”

Section: Volume-averaging the Streaming Current Densitymentioning

confidence: 99%

“…In geosciences, examples include water transport in unsaturated parts of the porous soils [3,4,5], monitoring of the oil / water interface in reservoir engineering [6,7], remediation (by electro-osmotic pumping) of soils contaminated by nonaqueous phase liquids (NAPLs) [8], monitoring of CO 2 sequenstration in the ground, healing of cracks of unsaturated clay-rocks by electro-osmotic pumping in civil engineering, and the study of diffusion of ionic species in unsaturated clay-rocks used as host formations for long-term storage of toxic wastes. To the best of our knowledge, our model is the first rigorous attempt to derive the governing equations that describe the effect of water saturation upon streaming potential and electro-osmosis.…”

Section: Introductionmentioning

confidence: 99%

Electrokinetic coupling in unsaturated porous media

Revil

Linde

Cérepi

et al. 2007

Journal of Colloid and Interface Science

214

337

View full text Add to dashboard Cite

Abstract. We consider a charged porous material that is saturated by two fluid phases that are immiscible and continuous at the scale of a representative elementary volume. The wetting phase for the grains is water and the non-wetting phase is assumed to be an electrically insulating viscous fluid. We use a volume averaging approach to derive the linear constitutive equations for the electrical current density as well as and the seepage velocities of the wetting and non-wetting phases at the scale of a representative elementary volume. These macroscopic constitutive equations are obtained by volume-averaging Ampère's law together with the Nernst-Planck equation and the Stokes equations. The material properties entering the macroscopic constitutive equations are explicitly described as a function of the saturation of the water phase, the electrical formation factor, and parameters that describe the capillary pressure function, the relative permeability function, and the variation of electrical conductivity with saturation. New equations are derived for the streaming potential and electro-osmosis coupling coefficients. A primary drainage and imbibition experiment is simulated numerically to demonstrate that the relative streaming potential coupling coefficient depends not only on the water saturation, but also on the material properties of the sample as well as the saturation history. We also compare the predicted streaming potential coupling coefficients with experimental data from four dolomite core samples. Measurements on these samples include electrical conductivity, capillary pressure, the streaming potential coupling coefficient at various level of saturation, and the permeability at saturation of the rock samples. We found a very good agreement between these experimental data and the model predictions.

show abstract

“…Recent numerical modeling work has suggested that measurements of streaming potential, acquired using electrodes permanently installed downhole, could be used to monitor water saturation changes in the vicinity of a well during oil or gas production (Saunders et al, 2006(Saunders et al, , 2008. The streaming potential is due to inflow of water to the reservoir as the hydrocarbons are extracted, either from an underlying aquifer or from water injection wells.…”

Section: Introductionmentioning

confidence: 99%

Streaming potentials at hydrocarbon reservoir conditions

et al. 2012

Self Cite

View full text Add to dashboard Cite

We have examined the behavior of the streaming potential under multiphase conditions, and under conditions of varying temperature and salinity, to evaluate the feasibility of using downhole streaming-potential measurements to determine fluid distributions in a reservoir. Using new insights into the pore-scale distribution of fluids and of electric charge, we found that the saturation dependence of the streaming potential coupling coefficient is important in determining the resulting streaming potential. Through examination of the four independent physical parameters which comprise the coupling coefficient, we developed an understanding of the behavior of the coupling coefficient under conditions of elevated temperature and brine salinity. We found that although increasing salinity substantially reduces the magnitude of the coupling coefficient, and therefore also the magnitude of the predicted streaming potential, increasing temperature has only a small effect, showing about a 10% change between 25°C and 75°C, depending on salinity.

show abstract

A new numerical model of electrokinetic potential response during hydrocarbon recovery

Cited by 49 publications

References 16 publications

The Electrokinetic Cross-Coupling Coefficient: Two-Scale Homogenization Approach

The Electrokinetic Cross-Coupling Coefficient: Two-Scale Homogenization Approach

Electrokinetic coupling in unsaturated porous media

Streaming potentials at hydrocarbon reservoir conditions

Contact Info

Product

Resources

About