Method of removing records of multiple reflection events from seismic data
Patent
·
OSTI ID:5584174
This patent describes a method of removing records of multiple reflection events from a collection of normal moveout corrected seismic data traces, the traces consisting of signals recorded by detectors responsive to seismic energy transmitted into the structure of the earth by seismic energy sources. It comprises selecting a first, unobscured primary reflection appearing on some or all of the seismic traces, and determining its total travel time between source and detector; identifying a second primary reflection at least partially obscured on some or all of the traces by a multiple reflection of the first primary reflection, and determining its total travel time between source and detector; selecting a third unobscured primary reflection appearing on some or all of the seismic traces that generally conforms to the partially obscured second primary reflection, and determining its total travel time between source and detector; computing from pre-existing static corrections, a static delay equal to the additional transit time of a seismic signal up and back down through the near-surface weathered zone at each source-to-receiver midpoint.
- Assignee:
- Mobil Oil Corp., Fairfax, VA (United States)
- Patent Number(s):
- US 5051960; A
- Application Number:
- PPN: US 7-553061
- OSTI ID:
- 5584174
- Country of Publication:
- United States
- Language:
- English
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