Apr 11th-Data Proc. & Acquisn. SIG: Compressive Seismic Imaging: A year of production*
Sponsored by Schlumberger
Event Location:
Schlumberger
Q Auditorium
10001 Richmond Avenue
Houston TX 77042 USA
NOTE: You Must be Logged in to Register
Speaker: Chuck Mosher, ConocoPhillips
Compressive sensing provides a new framework for sampling signals and wave-fields. This technology, based on non-uniform sampling, sparsity, and optimization can increase sampling efficiency by a factor of two or more in each sampling direction. Seismic data are acquired in four spatial dimensions, so the efficiency gains can approach an order of magnitude. When combined with simultaneous shooting, the gains can be even larger. We refer to our framework for utilizing compressive sensing concepts in seismic acquisition, processing, and imaging as Compressive Seismic Imaging, or CSI. ConocoPhillips has recently completed a full year of production application of CSI to land, marine, and ocean bottom node surveys. All of these projects have achieved significant improvements in both acquisition efficiency and in data quality. Acquisition efficiency improvements achieved in production range from a factor of 4 to as high as 10. Significant improvements in spatial resolution were achieved as well. The acquired data have been used for imaging, AVO, and 4D analysis. Direct comparisons of these results have been made to both test data acquired specifically for comparison, and data from adjacent and overlapping surveys. In all cases, quality of the CSI data exceeds that of the comparison data.
Speaker Biography:
Chuck Mosher is currently a Senior Geoscience Fellow in the Technology and Subsurface organization at ConocoPhillips. He received his BS (1978), MS (1979), and PhD (1980) degrees from the University of Minnesota Department of Geology and Geophysics. Chuck began his career as a geophysicist with ARCO Oil and Gas Company beginning in 1980, where he held research and management positions in the Geophysical Research and Information Technology departments. From 2000 to 2003, Chuck worked for Chevron Technology Corporation as a research geophysicist. In 2003, Chuck joined ConocoPhillips as a Geoscience Fellow in the Subsurface Technology organization. In his present position, Chuck is responsible for assuring the technical quality of research and technical service projects involving Geophysical Technology at ConocoPhillips. Chuck’s areas of expertise include the design and execution of projects in seismic data acquisition, processing, and imaging. His current research interests include compressive sensing, seismic survey design, and seismic processing and imaging.
Time Schedule:
4:30 PM – sign-in, social time
5:00 PM – start of presentation
6:00 PM - close of meeting
THANK YOU TO OUR GENEROUS SPONSOR:
