Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Robert G. Clapp"'
Publikováno v:
GEOPHYSICS. 88:R269-R296
Elastic full-waveform inversion (FWI) can provide accurate and high-resolution subsurface parameters. However, its high computational cost prevents the application of this method to large-scale field-data scenarios. To mitigate this limitation, we ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d143a63cfd23ef00c9371d8e41447167
https://doi.org/10.1190/geo2022-0404.1
https://doi.org/10.1190/geo2022-0404.1
Autor:
Fantine Huot, Ariel Lellouch, Paige Given, Bin Luo, Robert G. Clapp, Tamas Nemeth, Kurt T. Nihei, Biondo L. Biondi
Publikováno v:
Seismological Research Letters. 93:2543-2553
Microseismic analysis is a valuable tool for fracture characterization in the earth's subsurface. As distributed acoustic sensing (DAS) fibers are deployed at depth inside wells, they hold vast potential for high-resolution microseismic analysis. How
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ead2e035e8c37c4ca1a88858cc901a55
https://doi.org/10.1785/0220220037
https://doi.org/10.1785/0220220037
Microseismic analysis over a single horizontal distributed acoustic sensing fiber using guided waves
Autor:
Ariel Lellouch, Bin Luo, Fantine Huot, Robert G. Clapp, Paige Given, Ettore Biondi, Tamas Nemeth, Kurt T. Nihei, Biondo L. Biondi
Publikováno v:
GEOPHYSICS. 87:KS83-KS95
A single horizontal distributed acoustic sensing (DAS) fiber is notoriously challenging for microseismic analysis even when it is close to recorded events. Due to its uniaxial measurement, locations suffer from circular ambiguity. Nonetheless, in unc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db35aed5aa8b62d755da36c452d542cc
https://doi.org/10.1190/geo2021-0418.1
https://doi.org/10.1190/geo2021-0418.1
Publikováno v:
Distributed Acoustic Sensing in Geophysics. :131-148
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1133d6fc8269f766b67fd05b1b86529
https://doi.org/10.1002/9781119521808.ch10
https://doi.org/10.1002/9781119521808.ch10
Publikováno v:
GEOPHYSICS. 87:R1-R12
During linearized waveform inversion (LWI), the presence of small inaccuracies in the background subsurface model can lead to unfocused seismic events in the final image. The effect on the amplitude can mislead the interpretation. We have developed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8965ebeab730d469e3c1e178075f7ef5
https://doi.org/10.1190/geo2020-0631.1
https://doi.org/10.1190/geo2020-0631.1
Publikováno v:
GEOPHYSICS. 86:V445-V457
Low-frequency data of less than 5 Hz are essential to the convergence of full-waveform inversion (FWI) toward a useful solution. They help to build the velocity model low wavenumbers and reduce the risk of cycle skipping. In marine environments, low-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43d08145ae2a2f096b8fcd00014d44fb
https://doi.org/10.1190/geo2020-0573.1
https://doi.org/10.1190/geo2020-0573.1
Autor:
Paige Given, Fantine Huot, Ariel Lellouch, Bin Luo, Robert G. Clapp, Biondo L. Biondi, Tamas Nemeth, Kurt Nihei
Publikováno v:
Second International Meeting for Applied Geoscience & Energy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bf5a84bc51e5ff3f53ce1797e563111
https://doi.org/10.1190/image2022-3751887.1
https://doi.org/10.1190/image2022-3751887.1
Publikováno v:
Second International Meeting for Applied Geoscience & Energy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0a81874b0a57b11329085849d78fd88
https://doi.org/10.1190/image2022-3740035.1
https://doi.org/10.1190/image2022-3740035.1
We describe a new method, full waveform inversion by model extension (FWIME) that recovers accurate acoustic subsurface velocity models from seismic data, when conventional methods fail. We leverage the advantageous convergence properties of wave-equ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62287ecf83e781100f2688387b3694d4
http://arxiv.org/abs/2205.14341
http://arxiv.org/abs/2205.14341
Publikováno v:
GEOPHYSICS. 85:R437-R446
As oil and gas extraction becomes more advanced, deep-water exploration becomes increasingly focused on imaging near or under complex salt geology, which necessitates detailed velocity models with strong contrast interfaces. These interfaces can be e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e867d1c5a0d07ebfbcfed9060126ed83
https://doi.org/10.1190/geo2019-0352.1
https://doi.org/10.1190/geo2019-0352.1