Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Hartmut Spetzler"'
Autor:
Jincai Zhang, Hartmut Spetzler
Publikováno v:
Journal of Applied Geophysics. 125:56-64
We have explored a new technology based on using low-frequency strain attenuation data to monitor the infiltration of contaminants into two-fluid phase porous materials. The attenuation mechanism is related to the loss of energy due to the hysteresis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb25a863ee17ca5e26edf6dc2f7856bd
https://doi.org/10.1016/j.jappgeo.2016.01.004
https://doi.org/10.1016/j.jappgeo.2016.01.004
Publikováno v:
Physics of the Earth and Planetary Interiors. :47-56
The sound velocities and single-crystal elastic constants of Fo 89 hydrous ringwoodite (-Mg1.7Fe0.22H0.16SiO4) containing ∼10,000 ppm by weight (1 wt.%) H2O have been determined from seven separate pure-mode travel-time measurements using gigahertz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31f5b7ad6e147dfe8e692d24d450a747
https://doi.org/10.1016/j.pepi.2003.07.019
https://doi.org/10.1016/j.pepi.2003.07.019
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 41:496-501
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::903801e4be58ae26e6a3d03e13653277
https://doi.org/10.1016/j.ijrmms.2004.03.089
https://doi.org/10.1016/j.ijrmms.2004.03.089
Autor:
James G. Berryman, Jerry M. Harris, Albena Mateeva, Hartmut Spetzler, Kurt T. Nihel, Michael Fehler, James W. Rector, David Linton Johnson, Tokuo Yamomoto, Robert L. Nowack, Ru-Shan Wu, Stephen R. Pride
Publikováno v:
The Leading Edge. 22:518-525
Can permeability be determined from seismic data? This question has been around since Maurice Biot, working for Shell in the 1950s, introduced the idea that seismic waves induce fluid flow in saturated rocks due to fluid-pressure equilibration betwee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3d11b329fc2bbce56f3f5aa58c67636
https://doi.org/10.1190/1.1587671
https://doi.org/10.1190/1.1587671
Publikováno v:
Review of Scientific Instruments. 74:2604-2610
An existing subresonant damping spectrometer for making mechanical damping measurements in ∼0.1 m scale samples at low (0.001–100 Hz) frequencies has been characterized for accuracy and precision. In this study, we have designed and constructed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::797df51500cace7fdcc4c6155ab29e8c
https://doi.org/10.1063/1.1561595
https://doi.org/10.1063/1.1561595
Autor:
Steven D. Jacobsen, Ross J. Angel, Hartmut Spetzler, William A. Bassett, Hans J. Reichmann, Joseph R. Smyth, Stephen J. Mackwell
Publikováno v:
Journal of Physics-Condensed Matter
A new method of generating shear waves with near-optical wavelength has been developed for gigahertz ultrasonic interferometry. The new acoustic technique features a P-to-S conversion upon reflection inside an MgO buffer rod, and is used first to det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a22a68f9a8ddef7172a02d18d64c14d
https://doi.org/10.1088/0953-8984/14/44/510
https://doi.org/10.1088/0953-8984/14/44/510
Autor:
Hartmut Spetzler, W. M. Brunner
Publikováno v:
Geophysical Research Letters. 28:1867-1870
Meniscus dynamics causing strain energy dissipation in three-phase systems, e.g., partially saturated rocks, is being studied as a method of detecting changes in the chemical composition of these systems. New observations of dynamic menisci and thin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21c55a9054945455ac11a2a19d0c0aa1
https://doi.org/10.1029/2000gl012173
https://doi.org/10.1029/2000gl012173
Autor:
Hartmut Schutt, Hartmut Spetzler
Publikováno v:
Pure and Applied Geophysics. 158:627-646
— We study the filling of horizontal cracks with constant aperture driven by capillary forces. The physical model of the crack consists of a narrow gap between two flat glass plates (Hele-Shaw cell). The liquid enters the gap through a hole in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cca73cc5aebb9f47f2af015fa53744a
https://doi.org/10.1007/pl00001197
https://doi.org/10.1007/pl00001197
Publikováno v:
Journal of Geophysical Research: Solid Earth. 104:13049-13059
A fundamental understanding of flow within single, or discrete, fractures is necessary so that fluid flow and chemical transport in fractured rocks can be accurately characterized. To explore discrete fracture flow, we conducted a series of experimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee0b2e2bd046d60bb5fc2be40c597592
https://doi.org/10.1029/1998jb900035
https://doi.org/10.1029/1998jb900035
Publikováno v:
Scopus-Elsevier
Surface contamination effects on fluid flow across a glass surface have been examined in the absence and presence of a fluid meniscus. The flow of water in the absence of a fluid meniscus is unaffected by contamination of the glass surface with propa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6644f203e2bed1142a506ce02a0c3404
https://doi.org/10.1029/97gl00575
https://doi.org/10.1029/97gl00575