DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Wettability Effects on Primary Drainage Mechanisms and NAPL Distribution: A Pore-Scale Study

Journal Article · · Water Resources Research

The pore-scale processes governing water drainage behavior in porous media have implications for geoscience multiphase scenarios including carbon capture and storage, contaminant site remediation, oil recovery, and vadose zone processes. However, few studies report directly observed pore-scale water drainage phenomena in 3-D soils. This knowledge gap limits our ability to verify assumptions underlying existing models and develop optimal solutions. As such, this paper utilizes synchrotron X-ray microtomography to present an experimental pore-scale examination of nonaqueous phase liquid (NAPL)/water distribution along a primary drainage front as dense NAPL was injected upward into water wetting (WW) and intermediate wetting (IW) sand-packed columns. Pore-network structures were extracted from imaged data sets and mapped onto segmented NAPL/water data sets which allowed quantitative examinations of wettability impacts on (a) the extent to which NAPL fills individual pore bodies and (b) relationships between pore size and the phase occupying the pore, with both considered as a function of distance (and capillary pressure) relative to the NAPL front. These results revealed that several hypotheses treating IW sand similarly to WW sands are simplistic. IW systems exhibited a sequence of pore filling that deviated from traditional capillary pressure-based model predictions: NAPL invades smaller pores, while larger, adjacent pores are bypassed leaving multipore residual water ganglia. NAPL pore saturations were close to 1 and did not change with capillary pressure in IW systems. Overall, the results illustrate how a relatively small change in operative contact angle alters NAPL distribution during water drainage, with important implications for geoscience multiphase flow scenarios.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; Natural Sciences and Engineering Research Council of Canada (NSERC)
Grant/Contract Number:
FG02-94ER14466; AC02-06CH11357
OSTI ID:
1599441
Journal Information:
Water Resources Research, Vol. 56, Issue 1; ISSN 0043-1397
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (107)

Analysis of pore-scale nonaqueous phase liquid dissolution in etched silicon pore networks: PORE-SCALE NAPL DISSOLUTION journal September 2003
Non-aqueous phase liquid dissolution in heterogeneous systems: Mechanisms and a local equilibrium modeling approach journal December 1998
A pore-scale investigation of a multiphase porous media system journal March 2005
Capillary trapping for geologic carbon dioxide storage – From pore scale physics to field scale implications journal September 2015
Pore-level modeling of wetting journal December 1995
Wettability and Its Effect on Oil Recovery journal December 1990
Modeling Colloid-Facilitated Contaminant Transport in the Vadose Zone journal May 2008
Extraction of physically realistic pore network properties from three-dimensional synchrotron X-ray microtomography images of unconsolidated porous media systems journal January 2005
On the challenges of measuring interfacial characteristics of three-phase fluid flow with x-ray microtomography: IMAGING THREE-PHASE FLOW journal January 2014
Pore-scale contact angle measurements at reservoir conditions using X-ray microtomography journal June 2014
Invasion percolation: a new form of percolation theory journal October 1983
Application of a New Grain-Based Reconstruction Algorithm to Microtomography Images for Quantitative Characterization and Flow Modeling journal June 2008
Capillary trapping mechanism in strongly water wet systems: Comparison between experiment and percolation theory journal May 2015
Reconstruction of Berea sandstone and pore-scale modelling of wettability effects journal September 2003
Influence of Organic Acid and Organic Base Interactions on Interfacial Properties in NAPL−Water Systems journal February 2007
Influence of textural and wettability variations on predictions of DNAPL persistence and plume development in saturated porous media journal April 2004
Pore-scale micro-computed-tomography imaging: Nonwetting-phase cluster-size distribution during drainage and imbibition journal September 2013
Mechanisms of Enhanced Oil Recovery by Surfactant-Induced Wettability Alteration journal September 2015
Imaging of oil layers, curvature and contact angle in a mixed-wet and a water-wet carbonate rock: IMAGING OF OIL LAYERS, CURVATURE AND CONTACT ANGLE journal March 2016
Analysis of Fundamentals of Two-Phase Flow in Porous Media Using Dynamic Pore-Network Models: A Review journal September 2012
Real-time 3D imaging of Haines jumps in porous media flow journal February 2013
Film Straining of Colloids in Unsaturated Porous Media:  Conceptual Model and Experimental Testing journal August 1997
Capillary Pressure Correlations For Uniformly Wetted Porous Media journal October 1976
CO2 storage in carbonates: Wettability of calcite journal July 2017
Effect of fluid topology on residual nonwetting phase trapping: Implications for geologic CO2 sequestration journal December 2013
Wettability alteration of caprock minerals by carbon dioxide journal May 2007
From connected pathway flow to ganglion dynamics journal May 2015
Pattern growth and fluid displacements through porous media journal December 1986
Efficiently engineering pore-scale processes: The role of force dominance and topology during nonwetting phase trapping in porous media journal May 2015
Wettability Stabilizes Fluid Invasion into Porous Media via Nonlocal, Cooperative Pore Filling journal October 2015
The effect of wettability on capillary trapping in carbonates journal April 2016
Pore-scale dynamics of salt precipitation in drying porous media journal September 2013
Virus Retention and Transport in Chemically Heterogeneous Porous Media under Saturated and Unsaturated Flow Conditions journal March 2006
The Physics of Flow Through Porous Media journal January 1958
Drying front and water content dynamics during evaporation from sand delineated by neutron radiography: DRYING FRONT AND WATER CONTENT DYNAMICS journal June 2008
Quantitative computer reconstruction of particulate materials from microtomography images journal April 2006
Capillary Trapping of CO 2 in Oil Reservoirs: Observations in a Mixed-Wet Carbonate Rock journal February 2016
Wettability Literature Survey- Part 1: Rock/Oil/Brine Interactions and the Effects of Core Handling on Wettability journal October 1986
Impact of wettability alteration on 3D nonwetting phase trapping and transport journal March 2016
The Effects of Swelling and Porosity Change on Capillarity: DEM Coupled with a Pore-Unit Assembly Method journal April 2016
Multiphase Flow in Porous Media journal January 1988
Capillary trapping of CO2 in heterogeneous reservoirs during the injection period journal April 2017
Measurement and prediction of the relationship between capillary pressure, saturation, and interfacial area in a NAPL-water-glass bead system: CAPILLARY PRESSURE, SATURATION, AND IFA journal August 2010
Numerical models and experiments on immiscible displacements in porous media journal April 1988
Capillary pressure–saturation relationships for porous granular materials: Pore morphology method vs. pore unit assembly method journal September 2017
Wettability Literature Survey- Part 4: Effects of Wettability on Capillary Pressure journal October 1987
Role of Capillary Forces In Detennining Microscopic Displacement Efficiency For Oil Recovery By Waterflooding journal October 1974
Characterizing Pore-Scale Dissolution of Organic Immiscible Liquid in Natural Porous Media Using Synchrotron X-ray Microtomography journal November 2006
Physically-based network modeling of multiphase flow in intermediate-wet porous media journal June 1998
Comparison of residual oil cluster size distribution, morphology and saturation in oil-wet and water-wet sandstone journal June 2012
Impact of surfactant-induced wettability alterations on DNAPL invasion in quartz and iron oxide-coated sand systems journal January 2011
NAPL dissolution in heterogeneous systems: an experimental investigation in a simple heterogeneous system journal July 2000
Dissolution of residual tetrachloroethylene in fractional wettability porous media: incorporation of interfacial area estimates journal May 2001
Mechanisms of the displacement of one fluid by another in a network of capillary ducts journal October 1983
The Imaging of Dynamic Multiphase Fluid Flow Using Synchrotron-Based X-ray Microtomography at Reservoir Conditions journal August 2015
CO 2 wettability of seal and reservoir rocks and the implications for carbon geo-sequestration journal January 2015
A pore-level scenario for the development of mixed wettability in oil reservoirs journal June 1993
Contact angle measurements of CO2–water–quartz/calcite systems in the perspective of carbon sequestration journal September 2011
Impact of Wettability on Pore-Scale Characteristics of Residual Nonaqueous Phase Liquids journal July 2009
Extending Predictive Capabilities to Network Models journal December 1998
Characteristics of evaporation from partially wettable porous media: EVAPORATION FROM WETTABLE POROUS MEDIA journal February 2009
Modeling dense nonaqueous phase liquid mass removal in nonuniform formations: Linking source-zone architecture and system response journal January 2006
Influence of Viscous, Gravitational, and Capillary Forces on DNAPL Saturation journal March 1997
Characterization of Miller-Similar Silica Sands for Laboratory Hydrologic Studies journal January 1996
Fractional wettability and contact angle dynamics in burned water repellent soils journal September 2010
Pore-scale characteristics of multiphase flow in porous media: A comparison of air–water and oil–water experiments journal February 2006
Real‐time visualization of H aines jumps in sandstone with laboratory‐based microcomputed tomography journal October 2015
Pore Scale Modelling of Wettability Effects and Their Influence on Oil Recovery conference April 2013
Wettability of NAPL-Contaminated Sands journal October 1996
New insights on the complex dynamics of two-phase flow in porous media under intermediate-wet conditions journal July 2017
Quantitative Analysis of Flow Processes in a Sand Using Synchrotron‐Based X‐ray Microtomography journal February 2005
Review on Surfactant Flooding: Phase Behavior, Retention, IFT, and Field Applications journal July 2017
Image thresholding by indicator kriging journal July 1999
Three-dimensional modeling of three phase imbibition and drainage journal March 1998
Pore-Scale Analysis of Evaporation and Condensation Dynamics in Porous Media journal September 2010
Are rocks still water-wet in the presence of dense CO 2 or H 2 S? : Wettability alteration of rocks by acid gases journal July 2012
The impact of pore structure and surface roughness on capillary trapping for 2‐D and 3‐D porous media: Comparison with percolation theory journal November 2015
Pore Scale Observations of Trapped CO 2 in Mixed-Wet Carbonate Rock: Applications to Storage in Oil Fields journal September 2016
A thermodynamically consistent characterization of wettability in porous media using high-resolution imaging journal September 2019
Wettability Literature Survey Part 5: The Effects of Wettability on Relative Permeability journal November 1987
Quantification of capillary trapping of gas clusters using X-ray microtomography journal May 2014
Pore-scale imaging of geological carbon dioxide storage under in situ conditions: PORE-SCALE IMAGING OF CARBON STORAGE journal August 2013
Pore-by-pore capillary pressure measurements using X-ray microtomography at reservoir conditions: Curvature, snap-off, and remobilization of residual CO 2 journal November 2014
Influence of the heterogeneous wettability on capillary trapping in glass-beads monolayers: Comparison between experiments and the invasion percolation theory journal December 2015
Wettability control on multiphase flow in patterned microfluidics journal August 2016
Effect of Wettability on Waterflood Recovery for Crude-Oil/Brine/Rock Systems journal February 1995
Measurement and modeling of hydraulic characteristics of unsaturated porous media with mixed wettability journal September 1998
Measurements of the capillary trapping of super-critical carbon dioxide in Berea sandstone: MEASUREMENT OF CARBON DIOXIDE ENTRAPMENT journal March 2011
Pore-Scale Characterization of Organic Immiscible-Liquid Morphology in Natural Porous Media Using Synchrotron X-ray Microtomography journal November 2005
Pore geometry control of apparent wetting in porous media journal October 2018
Mechanism-Based Simulation of Oil Recovery Processes conference April 2013
Wettability hysteresis and its implications for DNAPL source zone distribution journal November 2008
Relative permeability and trapping of CO 2 and water in sandstone rocks at reservoir conditions : MULTIPHASE FLOW OF CO journal February 2012
Studies in the physical properties of soil. V. The hysteresis effect in capillary properties, and the modes of moisture distribution associated therewith journal January 1930
Detailed physics, predictive capabilities and macroscopic consequences for pore-network models of multiphase flow journal August 2002
Dynamic Pore-Scale Model of Drainage in Granular Porous Media: The Pore-Unit Assembly Method journal June 2018
An Investigation of the Effects of Wettability on Oil Recovery by Water flooding journal September 1955
Pore-scale trapping of supercritical CO 2 and the role of grain wettability and shape : PORE-SCALE CONTROLS ON TRAPPING OF s-CO journal August 2013
Residual CO 2 imaged with X-ray micro-tomography : RESIDUAL CO journal November 2011
Impact of pressure and temperature on CO 2 –brine–mica contact angles and CO 2 –brine interfacial tension: Implications for carbon geo-sequestration journal January 2016
Wettability Literature Survey- Part 2: Wettability Measurement journal November 1986
Pore-scale imaging of trapped supercritical carbon dioxide in sandstones and carbonates journal March 2014
A Pore-Level Scenario for the Development of Mixed Wettability in Oil Reservoirs conference April 2013
The physics of flow through porous media journal October 1957
Application of a New Grain-Based Reconstruction Algorithm to Microtomography Images for Quantitative Characterization and Flow Modeling
  • Thompson, Karsten Erik; Willson, Clinton S.; White, Christopher David
  • SPE Annual Technical Conference and Exhibition, All Days https://doi.org/10.2118/95887-ms
conference October 2005
Investigation of Pore-Scale Mixed Wettability conference April 2010
Extending Predictive Capabilities to Network Models conference October 1997