US3622966A
Expired / Lapsed
US
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Wavelet standardization
Assignee: Atlantic Richfield Co
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Filing: 1970-07-17
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Granted: 1971-11-23
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Expires: 1990-07-17
Abstract
Abstract Processes for improving seismic data whereby a plurality of seismograms is standardized to have the same generating wavelet. A reference seismogram is chosen and its autocorrelation is determined. The crosscorrelation between a first seismogram and the reference seismogram is determined. An operator is computed which transforms the crosscorrelation into the autocorrelation. The first seismogram and the operator are convolved to give the first seismogram the same wavelet as the reference seismogram. Additional seismograms can be standardized by this procedure using the same or a related reference seismogram.
Inventors
- 👤 Charles Floyd George Jr
- 👤 Howard A Slack
- 👤 Hugh Carroll Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:25
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/364; G01V1/366; G01V2210/00; G01V2210/50; G01V2210/52
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
An automatic machine performed process for improving seismic data whereby a seismogram of interest is standardized to have the same generating wavelet as a reference seismogram comprising a. determining the autocorrelation of the reference seismogram, b. determining the crosscorrelation of the seismogram of interest and the reference seismogram, c. computing an operator which converts the crosscorrelation of the seismogram of interest and the reference seismogram into the autocorrelation of the reference seismogram, and d. convolving the seismogram of interest with the operator.
Claim 2
Dependent Claim
82 words
An automatic machine performed process for improving seismic data whereby a seismogram of interest is standardized to have the same generating wavelet as a reference seismogram comprising a. determining the autocorrelation of the reference seismogram, b. determining the crosscorrelation of the seismogram of interest and the reference seismogram, c. computing an operator which converts the crosscorrelation of the seismogram of interest and the reference seismogram into the autocorrelation of the reference seismogram, and d. convolving the seismogram of interest with the operator.
Claim 3
Dependent Claim
97 words
An automatic machine implemented process for improving seismic data whereby a plurality of seismograms is standardized to have the same generating wavelet comprising a. selecting one of the seismograms as a reference and determining its autocorrelation, b. determining the crosscorrelation of a second seismogram and the reference seismogram, c. computing an operator which converts the crosscorrelation of the second seismogram and the reference seismogram into the autocorrelation of the reference seismogram, d. convolving the second seismogram with the operator, and c. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 4
Dependent Claim
97 words
An automatic machine implemented process for improving seismic data whereby a plurality of seismograms is standardized to have the same generating wavelet comprising a. selecting one of the seismograms as a reference and determining its autocorrelation, b. determining the crosscorrelation of a second seismogram and the reference seismogram, c. computing an operator which converts the crosscorrelation of the second seismogram and the reference seismogram into the autocorrelation of the reference seismogram, d. convolving the second seismogram with the operator, and c. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 5
Dependent Claim
144 words
A process performed with a computer without human intervention for improving seismic data whereby at least first, second, and third seismograms of interest are standardized to have the same generating wavelet comprising a. determining the autocorrelation of the first seismogram, b. determining the crosscorrelation of the second seismogram and the first seismogram, c. computing a first operator which converts the crosscorrelation of the second and first seismograms into the autocorrelation of the first seismogram, d. convolving the second seismogram with the first operator, e. determining the crosscorrelation of the third seismogram and the first seismogram, f. computing a second operator which convert the crosscorrelation of the third and first seismograms into the autocorrelation of the first seismogram, g. convolving the third seismogram with the second operator, and h. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 6
Dependent Claim
144 words
A process performed with a computer without human intervention for improving seismic data whereby at least first, second, and third seismograms of interest are standardized to have the same generating wavelet comprising a. determining the autocorrelation of the first seismogram, b. determining the crosscorrelation of the second seismogram and the first seismogram, c. computing a first operator which converts the crosscorrelation of the second and first seismograms into the autocorrelation of the first seismogram, d. convolving the second seismogram with the first operator, e. determining the crosscorrelation of the third seismogram and the first seismogram, f. computing a second operator which convert the crosscorrelation of the third and first seismograms into the autocorrelation of the first seismogram, g. convolving the third seismogram with the second operator, and h. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 7
Dependent Claim
155 words
An automatic process performed on a digital computer for improving seismic data whereby at least fIrst, second, and third seismograms of interest are standardized to have the same generating wavelet, comprising a. determining the autocorrelation of the first seismogram, b. determining the crosscorrelation of the second seismogram and the first seismogram, c. computing a first operator which converts the crosscorrelation of the second and first seismograms into the autocorrelation of the first seismogram, d. convolving the second seismogram with the first operator, e. determining the autocorrelation of the standardized second seismogram, f. determining the crosscorrelation of the third seismogram and the standardized second seismogram, g. computing a second operator which converts the crosscorrelation of the third and standardized second seismograms into the autocorrelation of the standardized second seismogram, h. convolving the third seismogram with the second operator, and i. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 8
Dependent Claim
155 words
An automatic process performed on a digital computer for improving seismic data whereby at least fIrst, second, and third seismograms of interest are standardized to have the same generating wavelet, comprising a. determining the autocorrelation of the first seismogram, b. determining the crosscorrelation of the second seismogram and the first seismogram, c. computing a first operator which converts the crosscorrelation of the second and first seismograms into the autocorrelation of the first seismogram, d. convolving the second seismogram with the first operator, e. determining the autocorrelation of the standardized second seismogram, f. determining the crosscorrelation of the third seismogram and the standardized second seismogram, g. computing a second operator which converts the crosscorrelation of the third and standardized second seismograms into the autocorrelation of the standardized second seismogram, h. convolving the third seismogram with the second operator, and i. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 9
Dependent Claim
169 words
A process performed using a properly programmed general purpose digital computer for improving seismic data whereby at least first, second, and third seismograms of interest are standardized to have the same generating wavelet comprising a. determining the autocorrelation of the first seismogram, b. determining the crosscorrelation of the second seismogram and the first seismogram, c. computing a first operator which converts the crosscorrelation of the second and first seismogram into the autocorrelation of the first seismogram, d. convolving the second seismogram with the first operator, e. combining the first seismogram and the standardized second seismogram to give a summation seismogram, f. determining the autocorrelation of the summation seismogram, g. determining the crosscorrelation of the third seismogram and the summation seismogram, h. computing a second operator which converts the crosscorrelation of the third and summation seismograms into the autocorrelation of the summation seismogram, i. convolving the third seismogram with the second operator, and j. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
Claim 10
Dependent Claim
169 words
A process performed using a properly programmed general purpose digital computer for improving seismic data whereby at least first, second, and third seismograms of interest are standardized to have the same generating wavelet comprising a. determining the autocorrelation of the first seismogram, b. determining the crosscorrelation of the second seismogram and the first seismogram, c. computing a first operator which converts the crosscorrelation of the second and first seismogram into the autocorrelation of the first seismogram, d. convolving the second seismogram with the first operator, e. combining the first seismogram and the standardized second seismogram to give a summation seismogram, f. determining the autocorrelation of the summation seismogram, g. determining the crosscorrelation of the third seismogram and the summation seismogram, h. computing a second operator which converts the crosscorrelation of the third and summation seismograms into the autocorrelation of the summation seismogram, i. convolving the third seismogram with the second operator, and j. repeating the sequence of steps presented above for each additional seismogram which is to be standardized.
References Cited (Backward Citations)
US3496529A
Cited
US3421140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |