Understanding Ocean Bottom Seismic
|Mr Mark Thompson (Statoil, Trondheim, Norway)|
|Geophysics – Seismic Acquisition|
|5 CPD points|
FULL AZIMUTH IMAGING INTERPRETATION OFFSHORE PRM SHEAR WAVE SURVEY DESIGN
The use of Ocean Bottom Seismic (OBS) is increasingly more utilized. The placement of receivers on the sea floor, allows for measurement of both pressure and shear waves, while the decoupling of source effort from receiver effort allows for full azimuth imaging. The characteristics of OBS creates challenges, which need to be addressed in survey design, acquisition, processing, imaging and interpretation. Through examples, successful use of this technology will be demonstrated. The course will describe the characteristics of wavefields that can be acquired and how they can be used practically in an E&P setting. Survey design will describe how to capture the different wavefields, while a look at the different acquisition techniques will attempt to demystify acquiring OBS data. OBS data, due to the different wavefields acquired, requires more care in processing, so the course will look at key areas in processing and how they differ from conventional marine processing. Finally through a series of case studies, the successful application of OBS will be demonstrated.
The objective of this one-day course is to provide the attending geoscientists with an insight into the key issues which are typical to OBS. These insights will enable the geoscientists to successfully adopt this technology in their daily work.
- Describe the characteristics of ocean bottom seismic
- Insights into survey planning
- Differences in acquisition technologies
- Review the key technologies to process and image ocean bottom seismic
- Through examples, show successful use of the technology
The course is designed for geoscientists, with subsurface problems, which require the adoption of innovative geophysical solutions.
About the instructor
Mr Mark Thompson is currently the leader for Permanent Reservoir Monitoring in Statoil. He completed his Master's degree in Petroleum Geology and Geophysics from Imperial College, London, in 1989. He joined Statoil R&D in 1997, and has since worked with reservoir imaging and monitoring.
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