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1-20 of 34
Keywords: viscosity ratio
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Proceedings Papers
Modeling and Upscaling of Viscous Fingering during Unstable Drainage Displacements
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201429-MS
... and physical parameters such as the velocity and viscosity ratio. Fine-grid intermediate scale simulations were conducted with the effective-fingering model for domains with different degrees of heterogeneity. Coarse-grid simulations were run to determine the shape factor (one of the effective-fingering model...
Proceedings Papers
Hydraulic Fracturing Treatment Design Considerations for Effective Proppant Pillar Construction
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181508-MS
... as it moves away for the wellbore (the inlet point). This size change can be clearly seen for the case at injection rate of 6 bpm, where the blue area is large close to the wellbore and smaller in the stages that have moved further away from wellbore. In the next simulations, the viscosity ratio of the two...
Proceedings Papers
Two-Dimensional Visualization of Heavy Oil Displacement Mechanism During Chemical Flooding
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181640-MS
... chemical additives can still be successful for producing heavy oil in non-linear core systems with no capillary trapping. enhanced recovery polymer waterflooding displacement recovery profile polymer flooding chemical flooding methods breakthrough recovery viscosity ratio Oil Recovery...
Proceedings Papers
Refinement of Relative Permeability Measurements by Accounting for Viscous Fingering in Coreflood Experiments
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170717-MS
... coreflood experiments in which the displacement front could be unstable, for instance due to adverse viscosity ratio. The method proposed here modifies the JBN technique, and hence is referred to as modified JBN (MJBN), by including a viscous fingering term (η) in the oil fractional flow. In order...
Proceedings Papers
Conversion of Cyclic Steam Injection to Continous Steam Injection
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146612-MS
... initial viscosity oil viscosity ratio reservoir cyclic steam injection continuous steam injection optimum conversion time injection injectivity index Introduction Steam injection process includes the injection of steam that can be generated at the surface or downhole. The main advantage...
Proceedings Papers
Experiments and Analysis of Multiscale Viscous Fingering during Forced Imbibition
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-143946-MS
... Darcy-type modeling of fluid flux is not predictive under unstable conditions (very small displacing to displaced phase viscosity ratios) at small displacement rates. A fractal analysis is convenient and appropriate. Using statistical theories and concepts of fractal geometry, we derive scaling power...
Proceedings Papers
Application of Real Rock Pore-throat Statistics to a Regular Pore Network Model
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-145751-MS
... & simulation fluid dynamics experiment throat area statistics regular pore network model pore network model spe 145751 pore-throat statistics flow in porous media two-phase flow network model viscosity ratio society of petroleum engineers real rock pore-throat statistics non-wetting phase...
Proceedings Papers
Viscous Fingering During Non-Thermal Heavy Oil Recovery
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146841-MS
... using water, polymer, and alkali-surfactant slugs have been conducted in two-dimensional silicon micromodels to visualize the pore-scale displacement. The viscosity ratio controls the finger structure. As the viscosity ratio increases, the number of growing fingers (or branches) before breakthrough...
Proceedings Papers
Predicting Hydrate Plug Formation in a Subsea Tieback
Available to PurchaseSimon R. Davies, John A. Boxall, Carolyn A. Koh, E. Dendy Sloan, Pål V. Hemmingsen, Keijo J. Kinnari, Zheng-Gang Xu
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-115763-MS
... in Equation 1 . The values of the constants k and k 2 for sII hydrate are 1.7427 x 10 15 lb/in 2 /hr/R and 24509.21 R respectively. Simulation Upstream Oil & Gas experiment heat transfer limitation Wellhead olga simulation hydrate viscosity ratio flow assurance Hydrate Plug Formation...
Proceedings Papers
Flow Instability Associated With Wettability Alteration
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-110202-MS
... of which is associated with an adverse mobility ratio. The adverse mobility ratio across this shock is not very large, about 1.5 to 3.75 in the cases considered. As the viscosity ratio increases, the width of the oil bank decreases and one of the shocks disappears at high viscosity ratio (>10...
Proceedings Papers
Experimental Study of CO 2 Injection into Saline Formations
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-110628-MS
.... Saturation patterns in terms of invaded regions were recorded by a digital camera. We carried out the experiments for different flow rates and viscosity ratios. In order to obtain both stable and unstable displacements with respect to gravity, injection was carried out in either the upward...
Proceedings Papers
Dependence on Temperature, Pressure, and Salinity of the IFT and Relative Permeability Displacement Characteristics of CO 2 Injected in Deep Saline Aquifers
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102138-MS
... viscosity ratio flow in porous media IFT salinity saturation displacement characteristic enhanced recovery interfacial tension Cardium Formation water salinity relative permeability deep saline aquifer gas saturation chemical flooding methods structural geology reservoir simulation brine...
Proceedings Papers
Modeling the Effect of Viscosity Ratio on Spontaneous Imbibition
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102641-MS
... viscosities ranged from 1 to 495 cP. Oil/aqueous phase viscosity ratios were varied by over four orders of magnitude (0.01 to 173.1). Near-linear relationships, with slopes close to one half, between the frontal position and imbibition time on a log-log scale were obtained for both linear and radial counter...
Proceedings Papers
Interfacial Instability in Reactive Miscible Flow Displacements
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102794-MS
... g ( μ a μ b ) is the logarithm of the viscosity ratio. In order to complete the mathematical representation, we should specify the boundary and initial conditions. As our intention is to use spectral methods, we need to formulate the problem so that all boundary...
Proceedings Papers
Spontaneous Imbibition with Matched Liquid Viscosities
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–12, 2005
Paper Number: SPE-96812-MS
... ratios of unity (a special case of the Mattax and Kyte scaling condition that viscosity ratios be matched). Combinations of mineral oils and aqueous solutions of glycerol were used to obtain matched viscosities ranging from 4 to 172 cp. In all, 25 imbibition data sets are reported for boundary conditions...
Proceedings Papers
Network Modeling of Drainage and Imbibition in Microfractured Porous Media
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–12, 2005
Paper Number: SPE-95902-MS
.... The model takes into account capillary and viscous forces, thus the model allows for the analysis of different configurations of fluids on the network obtained with different capillary numbers and viscosity ratio. Relative permeabilities and capillary pressures are obtained as a function of the average...
Proceedings Papers
A Relationship Between the Fractal Dimension and Scaling Groups of Unstable Miscible Displacements
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63001-MS
... fluid dynamics areal sweep efficiency viscosity ratio machine learning spe 63001 miscible displacement proportionality constant artificial intelligence enhanced recovery porous medium fractal dimension viscous fingering gravity number upstream oil & gas flow in porous media...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56676-MS
...-negligible capillarity are used. enhanced recovery Fluid Dynamics immiscible displacement viscosity ratio waterflooding simple capillary model imbibition equation flow in porous media complete fractional flow equation capillary force saturation profile history water injection spe 56676...
Proceedings Papers
A Model to Predict Wireline Formation Tester Sample Contamination
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1998
Paper Number: SPE-48959-MS
... contamination can be substantially reduced. P. 27 contamination level fluid dynamics relative permeability curve equation upstream oil & gas flow in porous media spe 48959 probe contamination viscosity ratio simulation filtrate contamination cleanup time filtrate watercut curve...
Proceedings Papers
A Viscous Coupling Model for Relative Permeabilities in Fractures
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1998
Paper Number: SPE-49006-MS
... velocities. This model also explains the dependence of the non-wetting fluid Kr on the viscosity ratio. Results obtained with this model were compared to several series of data available in the literature with air and water. The fit between predicted and measured Kr is good when the ratio of flow rates...
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