
TY  - JOUR
A1  - Luo, Zhijiang 
A1  - Brittan, John 
A1  - Lewis, Edward 
T1  - Imaging complexity in the Earth &#x2013; Case studies with optimised ray tomography
JF  - ASEG Extended Abstracts
JO  - ASEG Extended Abstracts
Y1  - 2015
VL  - 2015
IS  - 1
SP  - 1
EP  - 4
KW  - 
UR  - https://doi.org/10.1071/ASEG2015AB269 
N2  - In the past 10 years, the resolution of tomographic solutions has seen a continuous increase because of evolving sophistication in methodologies and technology. A vital issue in the data domain is accuracy and density of residual move-out picks that are used to derive tomographic velocity-model updates. A new automated method allows for precise tracking of accurate residual move-out on pre-stack depth-migrated gathers and consequently the fast determination of dense, high quality travel time residuals for seismic tomography. The determination of small-scale anomalies ultimately leads to flatter pre-stack depth-migrated gathers and consequently better-focused structural images. 
ER  -

