US3715715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of treating seismic data to obtain a wide band representation
Assignee: Mobil Oil AS
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Filing: 1970-10-30
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Granted: 1973-02-06
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Expires: 1990-10-30
Abstract
Abstract A computer apparatus for and computer performed method of obtaining a wide band representation of seismic reflection amplitudes. The seismic trace is successively truncated, each of the successive truncations is successively Fourier analyzed, and each center frequency component amplitude of the successive Fourier analyses is computed. The effects of successive truncation on the resulting center frequency function are then removed through the use of an optimum separation operator.
Inventors
- 👤 W Ruehle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:16
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V2210/00; G01V2210/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
93 words
An automatic computer performed method for obtaining a wide band representation from a seismic trace comprising the following steps: generating a physical representation within the computer representing the trace of seismic reflections; generating a physical representation within the computer representing successive truncations of the seismic trace corresponding to various windows of the trace; generating a physical representation within the computer representing successive Fourier analyses of the successive truncations; and generating a physical representation within the computer representing the amplitude of the center frequency components of successive Fourier analyses as a function of time.
Claim 2
Dependent Claim
93 words
An automatic computer performed method for obtaining a wide band representation from a seismic trace comprising the following steps: generating a physical representation within the computer representing the trace of seismic reflections; generating a physical representation within the computer representing successive truncations of the seismic trace corresponding to various windows of the trace; generating a physical representation within the computer representing successive Fourier analyses of the successive truncations; and generating a physical representation within the computer representing the amplitude of the center frequency components of successive Fourier analyses as a function of time.
Claim 3
Dependent Claim
93 words
An automatic computer performed method for obtaining a wide band representation from a seismic trace comprising the following steps: generating a physical representation within the computer representing the trace of seismic reflections; generating a physical representation within the computer representing successive truncations of the seismic trace corresponding to various windows of the trace; generating a physical representation within the computer representing successive Fourier analyses of the successive truncations; and generating a physical representation within the computer representing the amplitude of the center frequency components of successive Fourier analyses as a function of time.
Claim 4
Dependent Claim
93 words
An automatic computer performed method for obtaining a wide band representation from a seismic trace comprising the following steps: generating a physical representation within the computer representing the trace of seismic reflections; generating a physical representation within the computer representing successive truncations of the seismic trace corresponding to various windows of the trace; generating a physical representation within the computer representing successive Fourier analyses of the successive truncations; and generating a physical representation within the computer representing the amplitude of the center frequency components of successive Fourier analyses as a function of time.
Claim 5
Dependent Claim
35 words
The computer performed method of claim 1 wherein the physical representation representing the amplitude of the center frequency components corresponds to the mean spectral amplitude of the windowed seismic trace for each point in time.
Claim 6
Dependent Claim
27 words
The computer performed method of claim 2 including the step of removing the effects of truncation from said function representing the amplitude of the center frequency components.
Claim 7
Dependent Claim
68 words
The computer performed method of claim 3 wherein the step of generating the physical representation within the computer representing the amplitude of the center frequency components includes the step of generating a physical representation within the computer representing summing the amplitude of all frequency components of each of the Fourier analyses to obtain the mean spectral amplitude of each of the Fourier analyses of the windowed seismic trace.
Claim 8
Dependent Claim
67 words
An automatic computing apparatus for treating data of the seismic trace comprising: means for successively truncating the reflection energy function represented by the seismic trace; means for successively Fourier analyzing the successive truncations; means for successively computing the amplitude of the center frequency components of the respective Fourier analyses; and means for generating a center frequency amplitude function corresponding to the amplitude of the center frequency components.
Claim 9
Dependent Claim
67 words
An automatic computing apparatus for treating data of the seismic trace comprising: means for successively truncating the reflection energy function represented by the seismic trace; means for successively Fourier analyzing the successive truncations; means for successively computing the amplitude of the center frequency components of the respective Fourier analyses; and means for generating a center frequency amplitude function corresponding to the amplitude of the center frequency components.
Claim 10
Dependent Claim
32 words
The computing apparatus of claim 5 wherein said means for computing the amplitude includes means for successively computing the mean spectral amplitude of the windowed seismic trace for successive points in time.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |