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Mobility Ratio Effect for Water and Oil Displacement

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Mobility Ratio for Macroscopic Displacement | Fundamentals of Fluid Flow in Porous Med

No water is flowing and the permeabilities to oil and solvent are equal. Mobility ratio in this case is simply the ratio of oil and solvent viscosities: ...

Polymer Flooding for Enhanced Oil Recove

Thus, there is an inverse relation between the volumetric sweep efficiency and the mobility ratio. The value of M greater than unity is unfavorable, since this will cause the instability of the displacement process and so called "viscous fingering" effect. [2,5] Under the ...

The Application of Buckley-Leverett Displacement to Waterflooding in Non-Communicating Stratified Reservoi

These two values with oil and water viscosities define the mobility ratio which is an important factor affecting the performance. ... The Application of Buckley-Leverett Displacement to Waterflooding in Non-Communicating Stratified Reservoirs Noaman A.F. El ...

2- Reservoir Aspects in EOR | Porosity | Permeability (Earth Science

2- Reservoir Aspects in EOR - Download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File ... DK - 58 - Factors Which Affect Sweep Efficiency Mobility Ratio - Oil Viscosity Note that oil viscosity becomes much larger as pressure is lowered below 243 ...

Physical Properties of Associative Polymer Solutio

Abstract Approximately half of oil production nowadays is a result of water ood and a major concern of this process is mobility control of the injected phase. With the unfavorable mobility ratio, chanelling through permeable zones and the ngering e ect can occur that ...

US4409110A - Enhanced oil displacement processes and compositions - Google Paten

The polymeric viscosifier can be used to thicken an aqueous fluid improving the mobility ratio between flood water and oil in secondary or tertiary oil recovery, ...

SIMULATION STUDY OF AREAL SWEEP EFFICIENCY VERSUS A FUNCTION OF MOBILITY RATIO AND ASPECT RATIO FOR STAGGERED LINE-DRIVE WATERFLOOD PATTE

These results are available as a function of the displacement pattern and the mobility ratio M. In this research I studied the effect of mobility ratios on five-spot and staggered waterflood patterns behavior for areal ...

The Application of Buckley-Leverett Displacement to Waterflooding in Non-Communicating Stratified Reservoi

These two values with oil and water viscosities define the mobility ratio which is an important factor affecting the performance. ... The Application of Buckley-Leverett Displacement to Waterflooding in Non-Communicating Stratified Reservoirs Noaman A.F. El ...

Polymer flooding – Does Microscopic Displacement Efficiency Matte

water flood and polymer flood provide similar recovery for a water-wet condition, while the reduced mobility ratio of polymer flood gives significantly improved recovery for an oil-wet condition by avoiding the onset of microscopic ...

New mobility ratio definition for estimating volumetric sweep efficiency of low salinity water injection — the Research Networking Syst

This paper investigates the effect of low salinity water injection (LSWI) on both oil displacement and volumetric sweep efficiencies. A new definition of mobility ratio is proposed and shown to correlate with volumetric sweep efficiency better than other definitions in the ...

Waterfloodi

Effect of oil viscosity and rock wettability on mobility ratio, water viscosity = 0.5 cp. (Interstate Oil Compact Commission, 1983). ... Under these conditions there is “piston-like” displacement of the oil by water; that is, all the recoverable oil in the swept portion ...

Polymer Flooding at an Adverse Mobility Ratio: Acceleration of Oil Production by Crossflow into Water Channels - Energy & Fuels (ACS Publication

Water channels are formed in highly permeable thief zones or in situations with a strong adverse mobility ratio, such as waterflood in heavy oil reservoirs. This paper discusses the effect of tertiary polymer injection on oil mobilization in already established water ...

Probing the Effect of Oil Type and Saturation on Foam Flow in Porous Media: Core-Flooding and Nuclear Magnetic Resonance (NMR) Imaging - Energy .

The success of foam displacement in porous media largely depends on its stability, which is adversely impacted by the presence of oil. In this study, we present the results of an experimental investigation into the effect of oil type and saturation on foam rheology in ...

(PDF) The Application of Buckley-Leverett Displacement to Waterflooding in Non-Communicating Stratified Reservoirs | Noaman El-Khatib - Academia.e

Mobilities and Mobility Ratios mobility ratio for the displacement γ as defined by Eq.(7) ... W ater Cut ant Total M obility C urves Figures 2-4 show the performance results for a run with oil/water viscosity ratio of 2.5 and permeability

(PDF) Gas-oil Ratio and Water-oil Ratio | ismail mohammed - Academia.e

This should be evaluated in the context of known or sus- Gas-oil Ratio and Water-oil Ratio pected geological trends. Stylized representations of waterflood An indicator of bypassing is a premature drop in gas-oil ratio; performance in simplistic geological ...

Mechanism and present situation of CO2 oil displacement,Mechanism and present situation of CO2 oil displacement manufacturer- LEAD OILFIELD .

... as a result of oil and water mobility tends to be close to, so that the water oil displacement capability, also further expand the spread of water flooding the area, ...

(PDF) The Effect of Changing Mobility Ratio on Displacement Efficiency in Polymer Floodi

PDF | The effect of changing mobility ratio on displacement efficiency in polymer flooding was investigated. For this purpose, ... even if the wettability of reservoir rocks was changed by improving the viscosity of injected water, its effect of enhanced oil recovery ...

Interpretation of Oil/Water Relative Permeabilities From Centrifuge Displaceme

Interpretation of Oil-Water Relative Permeabilities from Centrifuge Experiments The design and interpretation of relative permeabilitiesfiom centrifuge experiments should include mechanisms such as capillary pressure, mobility ratio, and shocks. G. J. Hirasaki*, Rice ...

RESERVOIR MANAGEMENT FOR WATERFLOODS PART

Gas-oil Ratio and Water-oil Ratio An indicator of bypassing is a premature drop in gas-oil ratio; i.e., earlier than expected collapse of gas saturation. ...

BUCKLEY-LEVERETT DISPLACEMENT THEORY FOR WATERFLOODING PERFORMANCE IN STRATIFIED RESERVO

BUCKLEY-LEVERETT DISPLACEMENT THEORY FOR WATERFLOODING PERFORMANCE IN STRATIFIED RESERVOIR ... Keywords: oil and water displacement; recovery; water cut; pseudo relative permeability; mobility ratio; permeability variation. ...