| Autor: |
Tarek Matarid, Kamel Belaid, Tomohide Ishiyama, Christoph Lehman, Ahmed Al Riyami, Sameh Seddik, Arunava Bhowmick, Ali R. Al-Jarwan, Claudio Strobbia, Andreas Laake, M Anastasia, Dave Morrison |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
All Days. |
| Popis: |
In conventional seismic data processing Scholte and Guided Wave data are commonly considered as noise and therefore, are removed at an early stage of any seismic data processing sequence. This paper describes an innovative approach in characterizing near sea bed via surface wave inversion using Scholte wave data. 2-D & 3-D OBC seismic data sets were selected and reprocessed as a test focusing on shallow near surface data. The ultimate objective of this work was to attempt to locate the closest area to borrow the necessary volume of sediments / sand for the construction of artificial Islands (2) which are required for the development of an offshore oil field. In addition to the primary geotechnical objective, the test aimed to validate the potential of surface wave inversion using OBC data in shallow water. The near surface characterization revealed a complex geology with velocity inversions and the results were incorporated to optimize the geothechnical survey program since it was able to differentiate a relatively low velocity anomaly area which could be related to soft sediments from hard rocky surface having a higher shear velocity. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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