Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Michael B. Kowalsky"'
Publikováno v:
Geophysics, vol 85, iss 2
In many subsurface industrial applications, fluids are injected into or withdrawn from a geologic formation. It is of practical interest to quantify precisely where, when, and by how much the injected fluid alters the state of the subsurface. Routine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::142d75e9b2e0f3a04ca3525a7385b759
https://escholarship.org/uc/item/28t223xs
https://escholarship.org/uc/item/28t223xs
Autor:
George Shu Heng Pau, Michael Commer, Yoojin Jung, Y. Zhang, Stefan Finsterle, John K. Edmiston, Michael B. Kowalsky, Haruko Wainwright
Publikováno v:
Finsterle, S; Commer, M; Edmiston, JK; Jung, Y; Kowalsky, MB; Pau, GSH; et al.(2017). iTOUGH2: A multiphysics simulation-optimization framework for analyzing subsurface systems. Computers and Geosciences, 108, 8-20. doi: 10.1016/j.cageo.2016.09.005. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/0hn17903
© 2016 Elsevier Ltd iTOUGH2 is a simulation-optimization framework for the TOUGH suite of nonisothermal multiphase flow models and related simulators of geophysical, geochemical, and geomechanical processes. After appropriate parameterization of sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c062b18a4dd2191c464eb20360079dc6
http://www.escholarship.org/uc/item/0hn17903
http://www.escholarship.org/uc/item/0hn17903
Publikováno v:
Commer, M, Kowalsky, M B, Doetsch, J, Newman, G A & Finsterle, S 2014, ' MPiTOUGH2 : A parallel parameter estimation framework for hydrological and hydrogeophysical applications ', Computers & Geosciences, vol. 65, pp. 127-135 . https://doi.org/10.1016/j.cageo.2013.06.011
We present a parallel joint hydrogeophysical parameter estimation framework specifically relevant for a class of inverse modeling applications where a large number of simulations of multi-phase, multi-component flow and transport through porous media
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fd7c3172bbabe268c16848a8fa40c6a
https://doi.org/10.1016/j.cageo.2013.06.011
https://doi.org/10.1016/j.cageo.2013.06.011
Autor:
Xianjin Yang, Michael B. Kowalsky, Susan D. Hovorka, Stefan Finsterle, Joseph Doetsch, Jonathan B. Ajo-Franklin, Charles R. Carrigan, Thomas M. Daley, Christine Doughty
Publikováno v:
International Journal of Greenhouse Gas Control. 18:510-522
This study investigates how model predictions of subsurface CO2 migration can be constrained and improved with time-lapse electrical resistance tomography (ERT) data for a pilot experiment located at Cranfield, Mississippi. To this end, we first inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73b8321b6bbce6a4725f8c0d764a5751
https://doi.org/10.1016/j.ijggc.2013.04.011
https://doi.org/10.1016/j.ijggc.2013.04.011
Autor:
Philip E. Long, Michael B. Kowalsky, Kenneth H. Williams, Tetsu K. Tokunaga, Susan S. Hubbard, Baptiste Dafflon, Anh Phuong Tran
Publikováno v:
Hydrology and Earth System Sciences, vol 20, iss 9
Hydrology and Earth System Sciences, Vol 20, Iss 9, Pp 3477-3491 (2016)
Phuong Tran, A; Dafflon, B; Hubbard, SS; Kowalsky, MB; Long, P; Tokunaga, TK; et al.(2016). Quantifying shallow subsurface water and heat dynamics using coupled hydrological-thermal-geophysical inversion. Hydrology and Earth System Sciences, 20(9), 3477-3491. doi: 10.5194/hess-20-3477-2016. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/81p9j695
Hydrology and Earth System Sciences, Vol 20, Iss 9, Pp 3477-3491 (2016)
Phuong Tran, A; Dafflon, B; Hubbard, SS; Kowalsky, MB; Long, P; Tokunaga, TK; et al.(2016). Quantifying shallow subsurface water and heat dynamics using coupled hydrological-thermal-geophysical inversion. Hydrology and Earth System Sciences, 20(9), 3477-3491. doi: 10.5194/hess-20-3477-2016. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/81p9j695
Improving our ability to estimate the parameters that control water and heat fluxes in the shallow subsurface is particularly important due to their strong control on recharge, evaporation and biogeochemical processes. The objectives of this study ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e22d35d2c76aacf18585c8184b841ed6
https://escholarship.org/uc/item/81p9j695
https://escholarship.org/uc/item/81p9j695
Publikováno v:
Environmental Science & Technology. 45:9959-9966
It has been demonstrated in laboratory systems that U(VI) can be reduced to immobile U(IV) by bacteria in natural environments. The ultimate efficacy of bioreduction at the field scale, however, is often challenging to quantify and depends on site ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6946a6ba1e6885fb1d30a226c45090ee
https://doi.org/10.1021/es201111y
https://doi.org/10.1021/es201111y
Autor:
Michael B. Kowalsky, Stefan Finsterle
Publikováno v:
Computers & Geosciences. 37:731-738
We propose a modification to the Levenberg-Marquardt minimization algorithm for a more robust and more efficient calibration of highly parameterized, strongly nonlinear models of multiphase flow through porous media. The new method combines the advan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2d3a0a4b2ff7108596c767a1f0e2c35
https://doi.org/10.1016/j.cageo.2010.11.005
https://doi.org/10.1016/j.cageo.2010.11.005
Autor:
Michael B. Kowalsky, Timothy J. Kneafsey, E. Dendy Sloan, Mehran Pooladi-Darvish, Jonny Rutqvist, Carolyn A. Koh, George J. Moridis, Matthew T. Reagan, Amadeu K. Sum, Steven H. Hancock, Carlos Santamarina, Ray Boswell, Timothy S. Collett
Publikováno v:
SPE Reservoir Evaluation & Engineering. 14:76-112
The current paper complements the Moridis et al. (2009) review of the status of the effort toward commercial gas production from hydrates. We aim to describe the concept of the gas hydrate petroleum system, to discuss advances, requirement and sugges
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd619a5a60bd59813491d7ce6589c810
https://doi.org/10.2118/131792-pa
https://doi.org/10.2118/131792-pa
Publikováno v:
SPE Journal. 15:634-645
Summary Many studies involving the application of geophysical methods in the field of gas hydrates have focused on determining rock-physics relationships for hydrate-bearing sediments, with the goal being to delineate the boundaries of gas-hydrate ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2271f316e8052065d9f860efbf2cba32
https://doi.org/10.2118/132508-pa
https://doi.org/10.2118/132508-pa
Publikováno v:
Journal of Contaminant Hydrology. 112:45-63
Electron donor amendment for bioremediation often results in precipitation of secondary minerals and the growth of biomass, both of which can potentially change flow paths and the efficacy of bioremediation. Quantitative estimation of precipitate and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4768fd8c892c0a1783b9068beee59dc
https://doi.org/10.1016/j.jconhyd.2009.10.006
https://doi.org/10.1016/j.jconhyd.2009.10.006