Abstract
We present a scheme for Marchenko imaging in a dissipative heterogeneous medium. The scheme requires measured reflection and transmission data at two sides of the dissipative medium. The effectual medium is the same as the dissipative medium, but with negative dissipation. We show how the measured double-sided data can be combined to obtain the single-sided reflection response of the effectual medium. Two sets of single-sided Marchenko equations follow that are used to compute to the focusing wavefield and the Green functions. Each uses single-sided reflection responses of the dissipative and effectual medium. To start the solution for these equations an initial estimate of the dissipation is required in addition to the estimate of the travel time of the first arrival. Avoiding the estimate of dissipation of the first arrival in a low-loss medium does not have a detrimental effects on the image quality. The numerical example shows the effectiveness of this strategy.
Original language | English |
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Title of host publication | SEG Technical Program Expanded Abstracts 2016 |
Editors | Charles Sicking, John Ferguson |
Publisher | SEG |
Pages | 5160-5165 |
Number of pages | 6 |
DOIs | |
Publication status | Published - 2016 |
Event | SEG International Exposition and 86th Annual Meeting - Dallas & Kay Bailey Hutchison Convention Center, Dallas, United States Duration: 16 Oct 2016 → 21 Oct 2016 Conference number: 86 http://seg.org/Events/Annual-Meeting |
Publication series
Name | SEG Technical Program Expanded Abstracts |
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Publisher | SEG |
Volume | 2016 |
ISSN (Electronic) | 1949-4645 |
Conference
Conference | SEG International Exposition and 86th Annual Meeting |
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Abbreviated title | SEG 2016 |
Country/Territory | United States |
City | Dallas |
Period | 16/10/16 → 21/10/16 |
Internet address |
Keywords
- attenuation
- autofocusing
- multiples
- 3D