High resolution velocity analysis of watergun wide angle reflection data

1986 ◽  
Vol 4 (1) ◽  
pp. 41-55
Author(s):  
Dao Kemin ◽  
G. M. Purdy
Keyword(s):  
High Resolution ◽  
Velocity Analysis ◽  
Wide Angle ◽  
Reflection Data

Amplitude‐offset relationships over shallow velocity inversions

Geophysics ◽  
1989 ◽  
Vol 54 (9) ◽  
pp. 1114-1122 ◽  
Author(s):  
D. F. Poley ◽  
D. C. Lawton ◽  
S. M. Blasco
Keyword(s):  
High Resolution ◽  
Ray Tracing ◽  
Seismic Data ◽  
Energy Partitioning ◽  
Velocity Analysis ◽  
Zoeppritz Equations ◽  
Reflection Data ◽  
Offset Distance ◽  
Phase Variations ◽  
Selection Of

The amplitude and phase of reflected seismic data can vary significantly with the offset distance between source and receiver. Analysis of amplitude‐offset relationships in high‐resolution seismic data from areas of shallow permafrost in the Beaufort Sea is undertaken in this paper. Reflection attributes produced by energy partitioning at interfaces under nonnormal angles of incidence were studied by means of ray tracing and the Zoeppritz equations. Observed amplitude and phase variations were found to cause CDP stacking techniques to degrade reflection data quality, particularly where the zone of interest features velocity inversions or is shallow in relation to receiver lengths. In these cases velocity analysis based on coherency measures may result in the selection of incorrect stacking velocities.

scholarly journals High-resolution velocity analysis and program design based on Bootstrap algorithm

2019 ◽  
Vol 227 ◽  
pp. 042029
Author(s):  
Dechao Cai ◽  
Guifang Fa ◽  
Jia Li ◽  
Xing Xing ◽  
Yanjing Yi
Keyword(s):  
High Resolution ◽  
Program Design ◽  
Velocity Analysis ◽  
Bootstrap Algorithm

Wide-angle, high-resolution three-dimensional (3D) imaging using non-mechanical beam steering

2021 ◽  
Author(s):  
Christopher L. Hoy ◽  
Jay Stockley ◽  
Kelly Kluttz ◽  
Doug McKnight ◽  
Lance Hosting ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Imaging ◽  
Beam Steering ◽  
Three Dimensional ◽  
Wide Angle
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