Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Liangguo Dong"'
Publikováno v:
GEOPHYSICS. 88:R323-R337
Reconstructing the deep background velocity model is crucial for imaging subsurface structures. The reflection traveltime inversion (RTI) is capable of recovering the kinematic information in the velocity model under a limited seismic observation ape
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acc9dd5c485b9bd3e16ea40745bce7fc
https://doi.org/10.1190/geo2022-0502.1
https://doi.org/10.1190/geo2022-0502.1
Publikováno v:
Geophysical Prospecting. 71:171-190
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40cdcd9ccf51d95c196be4afafac8b98
https://doi.org/10.1111/1365-2478.13287
https://doi.org/10.1111/1365-2478.13287
Publikováno v:
GEOPHYSICS. 87:C173-C190
Wave-equation traveltime inversion (WTI) is a promising tool for reconstructing the intrinsic anisotropy properties of the earth’s interior. However, conventional time-domain implementation of anisotropic WTI involves crosscorrelation between sourc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::639ede10f42f3aa6a5ab52bd6c550e56
https://doi.org/10.1190/geo2021-0775.1
https://doi.org/10.1190/geo2021-0775.1
Publikováno v:
GEOPHYSICS. 86:R913-R926
Wave-equation traveltime inversion (WTI) is a useful tool for background velocity model building. It is generally formulated and implemented in the time domain, in which the gradient is calculated by temporally crosscorrelating the source- and receiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fabd4bf68f340c30c44113e372f9787
https://doi.org/10.1190/geo2020-0708.1
https://doi.org/10.1190/geo2020-0708.1
Autor:
Jizhong Yang, Xinquan Huang, Jianhua Geng, Xueyi Liu, Jiubing Cheng, Bin Li, Yuzhu Liu, Liangguo Dong
Publikováno v:
GEOPHYSICS. 86:B291-B301
Thin sand-mud-coal interbedded layers and multiples caused by shallow water pose great challenges to conventional 3D multichannel seismic techniques used to detect the deeply buried reservoirs in the Qiuyue field. In 2017, a dense ocean-bottom-seismo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f33cbaec716e778094b1e25fad362df1
https://doi.org/10.1190/geo2020-0537.1
https://doi.org/10.1190/geo2020-0537.1
Autor:
Liangguo Dong, Jianhua Wang
Publikováno v:
Near Surface Geophysics. 19:415-428
Wave‐equation traveltime inversion (WTI) can be used to automatically obtain a background near‐surface velocity model (NSM), which overcomes the high‐frequency approximation in ray theory. It is generally implemented in the time domain. However
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9448455da764d0931d597ed743e012e7
https://doi.org/10.1002/nsg.12161
https://doi.org/10.1002/nsg.12161
Publikováno v:
Journal of Applied Geophysics. 211:104964
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd25374573ed76c845ab639458fef668
https://doi.org/10.1016/j.jappgeo.2023.104964
https://doi.org/10.1016/j.jappgeo.2023.104964
Publikováno v:
Journal of Geophysics and Engineering. 18:192-199
Angle domain common image gathers (ADCIGs), commonly regarded as important prestacked gathers, provide the information required for velocity model construction and the phase and amplitude information needed for subsurface structures in oil/gas explor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7447084f647136ad7e20fef360ad9a3e
https://doi.org/10.1093/jge/gxab007
https://doi.org/10.1093/jge/gxab007
Publikováno v:
GEOPHYSICS. 84:S567-S580
Least-squares reverse time migration (LSRTM), which aims to match the modeled data with the observed data in an iterative inversion procedure, is very sensitive to the accuracy of the migration velocity model. If the migration velocity model contains
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b73035e7952c2e696c6e7eb074fedef7
https://doi.org/10.1190/geo2019-0005.1
https://doi.org/10.1190/geo2019-0005.1
Publikováno v:
GEOPHYSICS. 84:S29-S40
Direct imaging of the steeply dipping structures is challenging for conventional reverse time migration (RTM), especially when there are no strong reflectors in the migration velocity model. To address this issue, we have enhanced the imaging of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f57cade42623ff37156e7095e7b26aa
https://doi.org/10.1190/geo2017-0850.1
https://doi.org/10.1190/geo2017-0850.1