My research interest lies in the understanding of porous media and flow dynamics, with emphasis on the subsurface energy and environment processes and problems. I apply, and develop, new laboratory and analytical methods in porosity and permeability measurement, pore structure characterization, and pore-scale processes of fluid flow for complex porous and fractured media. My research focuses on both fundamental and applied aspects. Currently, most of my studies are related to shale gas and oil/mudrock systems. Most of my previous works are related to contaminant transport and remediation in the vadose zone and groundwater systems.
Permeability and porosity
Pore-scale processes and properties
Pore structure and flow channel characterization
Pore-scale imaging and upscaling using SEM, FIB/SEM, micro-CT, and nano-CT
Ph.D. Environmental Hydrogeology, University of Arizona, 2004
M.S. Environmental Science, Beijing Normal University, 2000
B.E. Environmental Planning and Management, Suzhou Institute of Urban Construction & Environmental Protection, 1997
Research Associate, Bureau of Economic Geology, University of Texas at Austin, 2014 – present
Research Fellow, Bureau of Economic Geology, University of Texas at Austin, 2013 – 2014
Assistant Research Professor, Department of Earth and Environmental Sciences, University of Texas at Arlington, 2011-2013
Associate Professor, School of Environment, Beijing Normal University, 2007-2010
Project Hydrogeologist, GeoSystems Analysis, Inc., Tucson, AZ, 2005-2007
Post-doctoral Researcher, University of Arizona, 2004-2005
Assistant Environmental Engineer, Sound Environmental Engineering Group, Beijing, 2000-2001
Peng, S.*, Y. Liu, L. Ko, W. Ambrose, 2019. Water/Oil Displacement by Spontaneous Imbibition Through Multiscale Imaging and Implication on Wettability in Wolfcamp Shale, Unconventional Resources Technology Conference, July 22-24, 2019, Denver, doi: 10.15530/urtec-2019-194.
Peng, S.*, 2019. Gas Relative Permeability and Evolution during Water Imbibition in Unconventional Reservoir Rocks: Direct Laboratory Measurement and A Conceptual Model. SPE Reservoir Evaluation & Engineering-Formation Evaluation, SPE-198896-PA, doi: 10.2118/198896-PA.
Peng, S.*, R. Reed, X. Xiao, Y. Yang, Y. Liu, 2019. Tracer-Guided Characterization of Dominant Pore Networks and Implications for Permeability and Wettability in Shale, Journal of Geophysical Research - Solid Earth, doi: 10.1029/2018JB016103.
Peng, S.*, B. Ren, M. Meng, 2019. Quantifying the Influence of Fractures for More Accurate Laboratory Measurement of Shale Matrix Permeability using a Modified Gas Expansion Method, SPE Reservoir Evaluation & Engineering-Formation Evaluation, SPE-195570-PA, https://doi.org/10.2118/195570-PA.
Peng, S*, T. Zhang, R. Loucks, J. Shultz, 2017. Application of mercury injection capillary pressure to mudrocks: Conformance and compression corrections. Marine and Petroleum Geology, 88, 30-40, doi: 10.1016/j.marpetgeo.2017.08.006
Peng, S*, and X. Xiao (2017). Investigation of multiphase fluid imbibition in shale through synchrotron-based dynamic micro-CT imaging, J. Geophys. Res. Solid Earth, 122, doi:10.1002/2017JB014253.
Peng, S*, A. Hassan, R.G. Loucks, 2016. Permeability estimation based on thin-section image analysis and 2D flow modeling in grain-dominated carbonates. Marine and Petroleum Geology, 77, 763-775, doi:10.1016/j.marpetgeo.2016.07.024
Peng, S. *, B. Loucks, 2016. Permeability measurements in Mudrocks using gas-expansion methods on plug and crushed-rock samples. Marine and Petroleum Geology, doi: 10.1016/j.marpetgeo.2016.02.025.
Peng, S.*, J. Yang, X. Xiao, B. Loucks, S. Ruppel, T. Zhang, 2015. An integrated method for upscaling pore-network characterization and permeability estimation: Example from the Mississippian Barnett Shale. Transport in Porous Media. 109 (2), 359-376, doi: 10.1007/s11242-015-0523-8.
Peng, S.*, F. Marone, S. Dultz, 2014. Resolution effect in X-ray microcomputed tomography imaging and small pore's contribution to permeability for a Berea sandstone. Journal of Hydrology, 510, 403-411.
Peng, S.*, N. Wang, J. Chen, 2013. Steam and air co-injection in removing residual TCE in unsaturated layered sandy porous media. Journal of Contaminant Hydrology, 153, 24-36.
Peng, S.*, S. Dultz, M. Zhang, Q. Hu, 2012. Pore structure characterization of Berea sandstone using synchrotron X-ray computed tomography: resolution effect and comparison with mercury intrusion porosimetry. Journal of Hydrology, 472, 254-261.
Peng, S., Q. Hu, R. P. Ewing, C. Liu, and J. M. Zachara, 2012. Quantitative 3-D elemental mapping by LA-ICP-MS of basalt from the Hanford 300 area. Environmental Science & Technology, 46, 2035-2042.
Peng, S., Q. Hu, S. Hamamoto, 2012. Gas diffusivity in rocks: measurement and its correlation to porosity, pore-size distribution, and permeability. Water Resources Research, 48, W02507, 9 PP., doi:10.1029/2011WR011098
Peng, S, Wu, W., Chen, J., 2011. Removal of PAHs with surfactant enhanced soil washing: Influencing factors and removal effectiveness. Chemosphere, 82, 1173-1177.
Peng, S. and M. L. Brusseau, 2005. The impact of soil texture on air-water interfacial area in unsaturated sandy porous media, Water Resources Research, Vol. 41, No. 3, W0302110.1029/2004WR003233.