Local-porosity theory for flow in porous media

1992 ◽  
Vol 45 (13) ◽  
pp. 7115-7121 ◽  
Author(s):  
R. Hilfer
Keyword(s):  
Porous Media ◽  
Flow In Porous Media ◽  
Local Porosity

scholarly journals Rules for Flight Paths and Time of Flight for Flows in Porous Media with Heterogeneous Permeability and Porosity

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-18 ◽  
Author(s):  
Lihua Zuo ◽  
Ruud Weijermars
Keyword(s):  
Porous Media ◽  
Fluid Transport ◽  
Initial Conditions ◽  
Time Of Flight ◽  
Flight Path ◽  
Flow In Porous Media ◽  
Transport Mechanisms ◽  
Local Porosity ◽  
Fluid Properties ◽  
Porosity And Permeability

Porous media like hydrocarbon reservoirs may be composed of a wide variety of rocks with different porosity and permeability. Our study shows in algorithms and in synthetic numerical simulations that the flow pattern of any particular porous medium, assuming constant fluid properties and standardized boundary and initial conditions, is not affected by any spatial porosity changes but will vary only according to spatial permeability changes. In contrast, the time of flight along the streamline will be affected by both the permeability and porosity, albeit in opposite directions. A theoretical framework is presented with evidence from flow visualizations. A series of strategically chosen streamline simulations, including systematic spatial variations of porosity and permeability, visualizes the respective effects on the flight path and time of flight. Two practical rules are formulated. Rule  1 states that an increase in permeability decreases the time of flight, whereas an increase in porosity increases the time of flight. Rule  2 states that the permeability uniquely controls the flight path of fluid flow in porous media; local porosity variations do not affect the streamline path. The two rules are essential for understanding fluid transport mechanisms, and their rigorous validation therefore is merited.

scholarly journals Rules for Flight Paths and Time of Flight for Flows in Porous Media with Heterogeneous Permeability and Porosity

Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-18 ◽  
Author(s):  
Lihua Zuo ◽  
Ruud Weijermars
Keyword(s):  
Porous Media ◽  
Fluid Transport ◽  
Initial Conditions ◽  
Time Of Flight ◽  
Flight Path ◽  
Flow In Porous Media ◽  
Transport Mechanisms ◽  
Local Porosity ◽  
Fluid Properties ◽  
Porosity And Permeability

Porous media like hydrocarbon reservoirs may be composed of a wide variety of rocks with different porosity and permeability. Our study shows in algorithms and in synthetic numerical simulations that the flow pattern of any particular porous medium, assuming constant fluid properties and standardized boundary and initial conditions, is not affected by any spatial porosity changes but will vary only according to spatial permeability changes. In contrast, the time of flight along the streamline will be affected by both the permeability and porosity, albeit in opposite directions. A theoretical framework is presented with evidence from flow visualizations. A series of strategically chosen streamline simulations, including systematic spatial variations of porosity and permeability, visualizes the respective effects on the flight path and time of flight. Two practical rules are formulated. Rule  1 states that an increase in permeability decreases the time of flight, whereas an increase in porosity increases the time of flight. Rule  2 states that the permeability uniquely controls the flight path of fluid flow in porous media; local porosity variations do not affect the streamline path. The two rules are essential for understanding fluid transport mechanisms, and their rigorous validation therefore is merited.

SECOND-GRADE MAGNETOHYDRODYNAMIC FLUID FLOW IN POROUS MEDIA

2010 ◽  
Vol 13 (11) ◽  
pp. 1033-1037
Author(s):  
Muhammad R. Mohyuddin ◽  
S. Islam ◽  
A. Hussain ◽  
A. M. Siddiqui
Keyword(s):  
Porous Media ◽  
Fluid Flow ◽  
Flow In Porous Media ◽  
Second Grade ◽  
Magnetohydrodynamic Fluid

scholarly journals Connectivity enhancement due to film flow in porous media

2019 ◽  
Vol 4 (9) ◽  
Author(s):  
Marcel Moura ◽  
Eirik Grude Flekkøy ◽  
Knut Jørgen Måløy ◽  
Gerhard Schäfer ◽  
Renaud Toussaint
Keyword(s):  
Porous Media ◽  
Film Flow ◽  
Flow In Porous Media

Study on the pressure drop of crude oil-water with surfactant flow in porous media

2021 ◽  
pp. 1-7
Author(s):  
Huijun Zhao ◽  
Xiang Ding ◽  
Pengfei Yu ◽  
Yun Lei ◽  
Xiaofei Lv ◽  
...  
Keyword(s):  
Porous Media ◽  
Pressure Drop ◽  
Crude Oil ◽  
Flow In Porous Media ◽  
Oil Water
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