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pro vyhledávání: '"Michinori Asaka"'
Autor:
Michinori Asaka
Publikováno v:
Geophysical Prospecting. 71:17-28
Autor:
Michinori Asaka
Publikováno v:
GEOPHYSICS. 87:B299-B311
A seismic amplitude-variation-with-offset (AVO) analysis is an important element in seismic reservoir characterization and has been successfully applied in many fields. Traditionally, AVO studies are based on AVO intercept ([Formula: see text]) and g
Autor:
Michinori Asaka, Rune Martin Holt
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources. 9
Time-delayed wellbore failures are often observed in shale formation. In some cases, cavings indicating bedding plane failure are observed a few days after initial drill-out with a gradual increase, eventually leading to wellbore collapse. Possible c
Autor:
Michinori Asaka
Publikováno v:
The Leading Edge. 40:52-59
Amplitude variation with offset (AVO) inversion of an anisotropic data set is a challenging task. Nonnegligible differences in the anisotropy parameters between the various lithologies make the seismic data AVO response completely different from the
Autor:
Michinori Asaka, Rune M. Holt
Publikováno v:
Rock Mechanics and Rock Engineering. 54:583-605
Shale formations are the main source of borehole stability problems during drilling operations. Suboptimal predictions of borehole failure may partly be caused by neglecting the anisotropic nature of shales: Conventional wellbore stability analysis i
Autor:
Michinori Asaka
Publikováno v:
EAGE Middle East Geomechanics Workshop: Lessons Learned & New Frontiers.
Autor:
Michinori Asaka
Publikováno v:
Proceedings of the 14th SEGJ International Symposium, Online, 18–21 October 2021.
Autor:
Michinori Asaka
Publikováno v:
The Leading Edge. 37:916-923
Routinely applied methods in seismic reservoir characterization such as forward modeling, wavelet extraction, amplitude-variation-with-offset (AVO) analysis, AVO inversion, and interpretation of seismic data usually assume that the earth can be model
Publikováno v:
Journal of Geophysical Research (JGR): Solid Earth
e2021JB021
e2021JB021
Shales often show strong elastic anisotropy that originate from the alignment and platy nature of its constituent minerals. Despite its impact on AVO (Amplitude Variation with Offset) response and seismic time-shifts, elastic anisotropy of shales is,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7960cf029247337f65327ae2446e389
https://hdl.handle.net/11250/2838250
https://hdl.handle.net/11250/2838250
Autor:
Michinori Asaka, Rune M. Holt
Publikováno v:
EAGE 2020 Annual Conference & Exhibition Online.
Summary Depletion of a reservoir causes changes in triaxial stress state. As a result, time-lapse changes in reservoir elastic anisotropy occurs because of stress-induced anisotropy. An anisotropic rock physics model is therefore required to correctl