This paper is an attempt to fill the technology gap existing between pure P- and PS-wave imaging. Full
wavefield extrapolation techniques are well developed for P-wave and RTM has been now available for
almost a decade. Conversely, ray based migration algorithms are still the ...
Technical Content
Least Squares Kirchhoff Depth Migration: potentials, challenges and its relation to interpolation
Least Squares Kirchhoff Depth Migration: potentials, challenges and its relation to interpolation
Least squares migration (LSM), like interpolation, has the potential to address sampling issues and generate images with better amplitudes than migration. Although both techniques share the same goal and often the same formulation, they differ on the nature of the model that is used ...
Converted-wave beam migration with sparse sources or receivers
Converted-wave beam migration with sparse sources or receivers
Gaussian Beam depth migration (GBM) overcomes the single-wavefront limitation of the most implementations of Kirchhoff migration, and constitutes a cost-effective alternative to full-wavefield imaging methods such as reverse time migration. Common-offset beam migration was originally derived to exploit symmetries available in marine towed-streamer acquisition ...
Is depth-variable streamer data AVO friendly? A study using both synthetic and real data
Is depth-variable streamer data AVO friendly? A study using both synthetic and real data
Variable-depth streamer acquisition has become a popular solution for marine seismic acquisition to obtain data with both low and high frequencies: the curved cable profile produces notch diversity that minimizes the residual ghosts in stacking and the deep towing nature provides high S/N at ...
New technology breathes new life into mature basins - a case study over the Utsira High
New technology breathes new life into mature basins - a case study over the Utsira High
We present a case study over the South Utsira High. This survey was the first commercial BroadSource with BroadSeis 3D survey, and was acquired over the Johan Sverdrup field. A small pilot survey was initially acquired over the Avaldsnes discovery and later extended to ...
Noise and Repeatability in Airborne Gravity Gradiometry
Noise and Repeatability in Airborne Gravity Gradiometry
We present the results from flying the FALCON-2 system over the R.J. Smith AGG test range at Kauring, West Australia.
We describe opportunities and challenges for imaging seismic data acquired using conventional marine sources and receivers located on the seafloor. Opportunities include the promise of greater imaging resolution than sea-surface acquisition and processing can offer, especially using P-wave to S-wave converted reflection energy (PS ...
Highly Detailed Reservoir Characterization of Tight Thin Sandstone through Geostatistical Inversion in a Gas Field China
Highly Detailed Reservoir Characterization of Tight Thin Sandstone through Geostatistical Inversion in a Gas Field China
A gas field, China, the target reservoirs are mainly delta front depositions, which are tight, thin, and below the tuning thickness. In order to charaterize the thin effective reservoir and porosity distribution in this field, a geostatistical inversion and co-simulation were performed. Using geostatistical ...
Rock Physics Modeling in Oil and Gas Field Development: A Methodology for Reservoir Characterization in Low Salinity Pay
Rock Physics Modeling in Oil and Gas Field Development: A Methodology for Reservoir Characterization in Low Salinity Pay
In this paper, we described some of the key challenges faced and their solutions during the reservoir characterization study. Shear log prediction can be done quickly by methods, such as multi linear regression and also by building a robust petro-elastic model, if pore geometry ...