Particle Detachment Under Velocity Alternation During Suspension Transport in Porous Media

Bedrikovetsky, Pavel; Zeinijahromi, Abbas; Siqueira, F. D.; Furtado, Cláudio; Souza, Antônio Luiz Serra de

doi:10.1007/s11242-011-9839-1

Cited by 169 publications

(83 citation statements)

References 51 publications

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“…It must be mentioned that the incremental recovery caused by induced fines migration also depends on reservoir heterogeneity; thus there is an optimum permeability reduction above which no extra incremental recovery can be obtained (Zeinijahromi and Bedrikovetsky, 2014). Experimental studies show that the degree of permeability reduction with injection of low salinity water is a function of the difference between formation and injection water salinity as well as type, size and concentration of initial reservoir fines (Khilar and Fogler, 1998;Bedrikovetsky et al, 2011;. A great difference between salinity of formation and injected water and also high concentration of movable fines can result in large release of fines from reservoir rock and consequently sever permeability damage.…”

Section: Resultsmentioning

confidence: 99%

“…Extremely high formation water salinity is defined by sodium chlorite concentration that highly exceeds those for other salts, while magnesium and calcium salts dominate in injected water. Therefore, intensive ion exchange and consequent fines release is expected to occur during the displacement of formation water by low salinity injected water (Khilar and Fogler, 1998;Bedrikovetsky et al, 2011).…”

Section: Field Descriptionmentioning

confidence: 99%

“…Other studies by Bedrikovetsky et al (2011) and Zeinijahromi et al (2011Zeinijahromi et al ( , 2014 propose that the mobility control effect of low salinity water injection that involves mobilization and migration of natural reservoir fines and consequent permeability reduction results in improved recovery. Morrow and Buckley (2011) also suggest that the formation of lamellae and emulsions, stabilized by fines, their migration and straining may result in mobility control and deep reservoir flow diversion.…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity study of low salinity water injection in Zichebashskoe Oilfield

Abbas¹,

Vadim²,

Ravil³

et al. 2015

J. Petroleum Gas Eng.

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Presently, low salinity waterflooding is considered one of the most promising and cost-effective EOR methods. Although the recovery mechanisms are still uncertain, decrease of residual oil saturation and alternation of rock wettability are considered to be main mechanisms of the incremental oil recovery. In addition, laboratory and mathematical studies conducted over recent years suggested that mobility control is also a possible mechanism for enhanced oil recovery during low salinity water injection. The mobility control effect is due to induced fines migration and consequent permeability reduction in water invaded areas. The laboratory studies show that the incremental recovery gained from low salinity fines-assisted water flooding strongly depends on end point relative phase permeability for formation and injection waters. Permeability reduction due to fines migration decreases injected water mobility and increases the reservoir sweep. In this study, 24 years of production data from Zichebashskoe field (Russia) including 7 years of low salinity waterflooding are used to study the effect of water relative permeability reduction during low salinity waterflooding on improved oil recovery. The results of 3D reservoir simulations show low incremental oil recovery by low salinity water injection mainly due to two reasons: first a significant amount of water produced before the water injection, that is, a significant mixture between formation and injected waters that decrease the effect of low salinity; and second already high sweep efficiency as a result of water injection into water zone. The sensitivity study shows that the incremental recovery increases for greater relative permeability reduction by low salinity water injection .However, with 20 times decrease of Krwor from formation water to injected water, the incremental oil recovery is still negligible (4%).

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Section: Resultsmentioning

confidence: 99%

Section: Field Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sensitivity study of low salinity water injection in Zichebashskoe Oilfield

Abbas¹,

Vadim²,

Ravil³

et al. 2015

J. Petroleum Gas Eng.

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“…A detailed analysis of physical processes governing particle attachment/detachment in porous media at various flowrates was carried out by Bedrikovetsky et al 25,26 resulting in the mathematical model for the critical retention concentration as a function of velocity,…”

Section: A Evaluation Of Uncertainty For Extrapolated Resultsmentioning

confidence: 99%

Critical analysis of uncertainties during particle filtration

Badalyan

Carageorgos

Bedrikovetsky

et al. 2012

Review of Scientific Instruments

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Using the law of propagation of uncertainties we show how equipment- and measurement-related uncertainties contribute to the overall combined standard uncertainties (CSU) in filter permeability and in modelling the results for polystyrene latex microspheres filtration through a borosilicate glass filter at various injection velocities. Standard uncertainties in dynamic viscosity and volumetric flowrate of microspheres suspension have the greatest influence on the overall CSU in filter permeability which excellently agrees with results obtained from Monte Carlo simulations. Two model parameters “maximum critical retention concentration” and “minimum injection velocity” and their uncertainties were calculated by fitting two quadratic mathematical models to the experimental data using a weighted least squares approximation. Uncertainty in the internal cake porosity has the highest impact on modelling uncertainties in critical retention concentration. The model with the internal cake porosity reproduces experimental “critical retention concentration vs velocity”-data better than the second model which contains the total electrostatic force whose value and uncertainty have not been reliably calculated due to the lack of experimental dielectric data.

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“…Particles erode and detach from the mud cake only when the shear stress exerted by the drilling fluid is greater than the critical shear stress (t cr ) of the particle. [10,37,38] The value for t cr is the minimum shear stress required to initiate detachment of particles from the surface of the mud cake. This parameter is a function of surface roughness and particle adhesiveness.…”

Section: Calculation Of Weight Of Particles Eroded From Mud Cake Surfacementioning

confidence: 99%

Effect of nanoparticle behaviour on mud cake buildup for directional and horizontal wells: mathematical modelling and experimental study

Sedaghatzadeh

Ghazanfari

Shahbazi

et al. 2016

Journal of Experimental Nanoscience

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The present study examined the effect of nanoparticle size and geometry on filter cake buildup during dynamic filtration using experimental and modeling approaches. A dynamic filtration setup was proposed and designed to test cross-flow circulation against a synthetic core at a constant differential pressure. The proposed mathematical model considers the critical deposition boundary of the porous media for particles along with drag, lift, friction, buoyancy, permeate, and electrostatic forces. The comprehensive model response allowed investigation of the aggregation and shape of nanoparticles at different cross-flow inclinations. The drag and lift force coefficients and moment of inertia of the nanoparticles were determined using cluster structures of nanoparticles identified using dynamic light scattering (DLS) and fractal theory. The deposition and erosion intensity index of all solid particles were experimentally determined and used in the model. Electronic microscope images of the mud cake surface confirmed the proposed cluster structure of the aggregated particles. The mud cake thickness measured by dynamic filtration tests and the nanoparticle-bentonite weight ratio acquired by DLS showed good agreement with the mathematical model results. The proposed approach allows selection of the optimum shape and size of the nano-solid particles as additives to minimize mud cake buildup along the borehole. KEYWORDSdynamic filtration aggregated structure of nanoparticles; mathematical mud cake buildup modelling; deposition and erosion intensity index

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Particle Detachment Under Velocity Alternation During Suspension Transport in Porous Media

Cited by 169 publications

References 51 publications

Sensitivity study of low salinity water injection in Zichebashskoe Oilfield

Sensitivity study of low salinity water injection in Zichebashskoe Oilfield

Critical analysis of uncertainties during particle filtration

Effect of nanoparticle behaviour on mud cake buildup for directional and horizontal wells: mathematical modelling and experimental study

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