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Title: Beyond Darcy's law: The role of phase topology and ganglion dynamics for two-fluid flow

Journal Article · · Physical Review E
 [1];  [2];  [3];  [4];  [5];  [6]
  1. Univ. of New South Wales, Sydney, NSW (Australia). School of Petroleum Engineering
  2. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Advanced Research Computing
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Imperial College, London (United Kingdom)
  5. Helmholtz Centre for Environmental Research-UFZ, Halle (Germany)
  6. Shell Global Solutions International B.V., Rijswijk (The Netherlands)

Relative permeability quantifies the ease at which immiscible phases flow through porous rock and is one of the most well known constitutive relationships for petroleum engineers. It however exhibits troubling dependencies on experimental conditions and is not a unique function of phase saturation as commonly accepted in industry practices. The problem lies in the multi-scale nature of the problem where underlying disequilibrium processes create anomalous macroscopic behavior. Here we show that relative permeability rate dependencies are explained by ganglion dynamic flow. We utilize fast X-ray micro-tomography and pore-scale simulations to identify unique flow regimes during the fractional flow of immiscible phases and quantify the contribution of ganglion flux to the overall flux of non-wetting phase. We anticipate our approach to be the starting point for the development of sophisticated multi-scale flow models that directly link pore-scale parameters to macro-scale behavior. Such models will have a major impact on how we recover hydrocarbons from the subsurface, store sequestered CO2 in geological formations, and remove non-aqueous environmental hazards from the vadose zone.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1344249
Alternate ID(s):
OSTI ID: 1330291
Journal Information:
Physical Review E, Vol. 94, Issue 4; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 154 works
Citation information provided by
Web of Science

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Cited By (23)

Fluid Topology in Pore Scale Two‐Phase Flow Imaged by Synchrotron X‐ray Microtomography journal March 2018
Enhanced oil recovery mechanism and recovery performance of micro‐gel particle suspensions by microfluidic experiments journal April 2020
Pressure drop of single phase flow in microchannels and its application in characterizing the apparent rheological property of fluids journal April 2019
Direct simulation of pore-scale two-phase visco-capillary flow on large digital rock images using a phase-field lattice Boltzmann method on general-purpose graphics processing units journal July 2019
On the development of a relative permeability equation of state journal June 2019
Review of Steady-State Two-Phase Flow in Porous Media: Independent Variables, Universal Energy Efficiency Map, Critical Flow Conditions, Effective Characterization of Flow and Pore Network journal March 2018
Porous Media Characterization Using Minkowski Functionals: Theories, Applications and Future Directions journal November 2018
Volatile Degassing From Magma Chambers as a Control on Volcanic Eruptions journal August 2019
Micro- and macro-scale water retention properties of granular soils: contribution of the X-Ray CT-based voxel percolation method journal January 2019
Suppressing viscous fingering in structured porous media journal April 2018
Changes in migration mode of brine and supercritical CO2 in imbibition process under steady flow state of very slow fluid velocities journal May 2018
Mechanisms controlling fluid breakup and reconnection during two-phase flow in porous media journal October 2019
Validation of model predictions of pore-scale fluid distributions during two-phase flow journal May 2018
Geometric state function for two-fluid flow in porous media journal August 2018
Oil Fragmentation, Interfacial Surface Transport and Flow Structure Maps for Two-Phase Flow in Model Pore Networks. Predictions Based on Extensive, DeProF Model Simulations journal January 2018
Toward a New Generation of Two-Fluid Flow Models Based on the Thermodynamically-Constrained Averaging Theory journal October 2019
Form and function in hillslope hydrology: in situ imaging and characterization of flow-relevant structures journal January 2017
Intermittent fluid connectivity during two-phase flow in a heterogeneous carbonate rock book October 2019
Suppressing viscous fingering in structured porous media text January 2018
The Effect of Mixed Wettability on Pore‐Scale Flow Regimes Based on a Flooding Experiment in Ketton Limestone text January 2019
On the Development of a Relative Permeability Equation of State conference September 2018
Form and function in hillslope hydrology : In situ imaging and characterization of flow-relevant structures text January 2017
Ensemble Distribution for Immiscible Two-Phase Flow in Porous Media text January 2016

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