Method for restoring and extrapolating seismic traces
This paper discusses a method for enhancing a x-t domain seismic record. It comprises identifying a null seismic trace of restoration; selecting a group of traces surrounding the identified null seismic trace to be restored on the x-t domain seismic record; transforming the group of selected traces into the f-x domain by the application of a fast Fourier transform; selecting a series of complex numbers corresponding to the selected traces for each frequency component; estimating a set of autoregressive coefficients from the series of complex numbers; estimating a complex number for the missing number associated with the identified null trace from the series of complex numbers and autoregressive coefficients on either side of the missing number; repeating the last three steps for frequencies in the f-x domain and applying an inverse fast Fourier transform to the estimated complex numbers for the frequencies to produce restored seismic data for identified seismic traces on the x-t domain street record.
- Assignee:
- Mobil Oil Corp., New York, NY (USA)
- Patent Number(s):
- A; US 4953139
- Application Number:
- PPN: US s 7-474886
- OSTI ID:
- 6406512
- Country of Publication:
- United States
- Language:
- English
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CALCULATION METHODS
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GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
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