Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Daoliu Wang"'
Publikováno v:
SEG Technical Program Expanded Abstracts 2020.
Publikováno v:
SEG Technical Program Expanded Abstracts 2017.
Autor:
Daoliu Wang
Publikováno v:
SEG Technical Program Expanded Abstracts 2016.
Autor:
Yu Zhang, Daoliu Wang
Publikováno v:
GEOPHYSICS. 74:WCC27-WCC36
We propose a new wave-equation inversion method that mainly depends on the traveltime information of the recorded seismic data. Unlike the conventional method, we first apply a [Formula: see text] transform to the seismic data to form the delayed-sho
Publikováno v:
The Leading Edge. 28:1098-1108
The years 2000–2001 sparked a flurry of activity on various flavors of beam migration. GEOPHYSICS papers by Yonghe Sun et al. on slant-stack Kirchhoff migration and Ross Hill on Gaussian-beam migration showed the potential of migration methods that
Publikováno v:
GEOPHYSICS. 72:S133-S138
Gaussian-beam depth migration is a useful alternative to Kirchhoff and wave-equation migrations. It overcomes the limitations of Kirchhoff migration in imaging multipathing arrivals, while retaining its efficiency and its capability of imaging steep
Publikováno v:
SEG Technical Program Expanded Abstracts 2012.
Summary Full waveform inversion has been successful in building high resolution velocity models for shallow layers. To be successful, it requires refracted waves or low frequencies in the reflection/refraction data. We revisit full waveform inversion
Autor:
Daoliu Wang
Publikováno v:
Physica D: Nonlinear Phenomena. 73:1-16
Symplectic algorithms have been shown to be a right formalism for numerical computation of Hamiltonian systems. They are suitable to long time computation and of good qualitative properties. These properties are ensured by the fact that a symplectic
Autor:
Chu-Ong Ting, Daoliu Wang
Publikováno v:
11th International Congress of the Brazilian Geophysical Society.
In this paper we review the subsalt challenges and present a specialized beam migration to address the issues of steep dip imaging, multi-arrival capability, and S/N ratio enhancement. We show its applications in the Gulf of Mexico area, for both nar
Autor:
Chu Ong Ting, Daoliu Wang
Publikováno v:
SEG Technical Program Expanded Abstracts 2008.
In the deep water Gulf of Mexico, the salt tectonics creates complicated salt bodies, including various shapes of salt sheet, salt canopy, and salt dome. This high velocity medium poses a serious challenge to seismic acquisition and imaging that its