Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Sukjoon Pyun"'
Autor:
Ganghoon Lee1, Sukjoon Pyun1, Yonghyun Chung1, Jehyun Shin2, Myung Jin Nam3, Woochang Choi1, Young-chul Yu4, Seho Hwang2
Publikováno v:
Journal of Environmental & Engineering Geophysics. Mar2023, Vol. 28 Issue 1, p12-27. 16p.
Autor:
Sukjoon Pyun, Yunhui Park
Publikováno v:
GEOPHYSICS. 86:U75-U87
First-arrival traveltime tomography (FATT) is used to delineate shallow velocity structures to identify static effects in oil exploration as well as to characterize the near surface for geotechnical purposes. Because FATT is generally used for land s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3314e095c203331e5c48bc5cce6d5443
https://doi.org/10.1190/geo2020-0233.1
https://doi.org/10.1190/geo2020-0233.1
Autor:
Sukjoon Pyun, Ganghoon Lee
Publikováno v:
Exploration Geophysics. 52:179-188
When implementing reverse-time migration (RTM), reflected waves that are generated during migration may produce false reflectors. One effective method to remove these artefacts is to apply a de-pri...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26bb49059697cfc5595ed9cebb1bcee7
https://doi.org/10.1080/08123985.2020.1788937
https://doi.org/10.1080/08123985.2020.1788937
Autor:
Sukjoon Pyun, Donguk Lee
Publikováno v:
GEOPHYSICS. 85:R299-R311
Full-waveform inversion (FWI) is a powerful tool for imaging underground structures with high resolution; however, this approach commonly suffers from the cycle-skipping issue. Recently, various FWI methods have been suggested to address this problem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82dae5fadf897a0c9c7ebba5b12157d5
https://doi.org/10.1190/geo2019-0533.1
https://doi.org/10.1190/geo2019-0533.1
Autor:
Chanil Kim, Sukjoon Pyun
Publikováno v:
Exploration Geophysics. 51:378-387
Because a vertical seismic profile (VSP) survey includes the installation of geophones into a borehole, the results of data processing are influenced by the deviation error of the borehole trajecto...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4773cc92cd825fe370d0111977a8db0
https://doi.org/10.1080/08123985.2019.1700761
https://doi.org/10.1080/08123985.2019.1700761
Autor:
Sukjoon Pyun, Yunhui Park
Publikováno v:
SEG Technical Program Expanded Abstracts 2020.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86409e8232587e952bc67ec4779e36c4
https://doi.org/10.1190/segam2020-3413593.1
https://doi.org/10.1190/segam2020-3413593.1
Autor:
Yunhui Park, Sukjoon Pyun
Publikováno v:
Journal of Applied Geophysics. 150:160-171
Land seismic data generally have time-static issues due to irregular topography and weathered layers at shallow depths. Unless the time static is handled appropriately, interpretation of the subsurface structures can be easily distorted. Therefore, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c77a71b6c8b446c3495672c6d1879a
https://doi.org/10.1016/j.jappgeo.2018.01.025
https://doi.org/10.1016/j.jappgeo.2018.01.025
Autor:
Yunhui Park1, Sukjoon Pyun1 pyunsj@inha.ac.kr
Publikováno v:
Exploration Geophysics. 9/1/2017, Vol. 48 Issue 3, p219-225. 7p.
Autor:
Sukjoon Pyun, Yunhui Park
Publikováno v:
Exploration Geophysics. 48:219-225
As full waveform inversion (FWI) requires large computation time, a variety of techniques have been suggested to reduce the computational burden. In this study, we use wavenumber-space-time domain modelling, which directly generates common mid-point
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db6680cffd8588970375bcfeb04ab2fb
https://doi.org/10.1071/eg16019
https://doi.org/10.1071/eg16019
Publikováno v:
Journal of Applied Geophysics. 133:25-29
3D Kirchhoff pre-stack depth migration requires an efficient algorithm to compute first-arrival traveltimes. In this paper, we exploited a wave-equation-based traveltime calculation algorithm, which is called the suppressed wave equation estimation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5148c556637a20d1f133be3243f04d45
https://doi.org/10.1016/j.jappgeo.2016.07.025
https://doi.org/10.1016/j.jappgeo.2016.07.025