US3193797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of low signal-to-noise ratio seismic signals
Assignee: Phillips Petroleum Co
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Filing: 1961-11-27
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Granted: 1965-07-06
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Expires: 1981-11-27
Abstract
No abstract record available.
Inventors
- 👤 Joe P Lindsey
- 👤 Sheldon E Elliott
- 👤 Ralph C Loring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:13
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/362; G01V2210/00; G01V2210/30; G01V2210/50; G01V2210/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS FOR EFFECTING THE PROPER TIME ALIGNMENT OF A PLURALITY OF SEISMIC SIGNALS COMPRISING ALIGNING SAID PLURALITY OF SEISMIC SIGNALS FOR A PLURALITY OF VALUES OF DIP ANGLE, SUMMING THE ALIGNED SIGNALS CORRESPONDING TO EACH OF SAID VALUES OF DIP ANGLE TO FORM COMPOSITE SIGNALS, COMPARING THE INDIVIDUAL ALIGNED SIGNALS CORRESPONDING TO EACH OF SAID VALUES OF DIP ANGLE WITH THE RESPECTIVE COMPOSITE SIGNAL AND PRODUCING AN OUTPUT SIGNAL WHENEVER AN INDIVIDUAL ALIGNED SIGNAL IS IN PHASE WITH THE RESPECTIVE COMPOSITE SIGNAL, SUMMING THE OUTPUT SIGNALS CORRESPONDING TO EACH OF SAID VALUES OF DIP ANGLE TO FORM CORRELATION SIGNALS, AND COMPARING SAID CORRELATION SIGNALS TO THEREBY DETERMINE THE PROPER VALUE OF DIP ANGLE.
Claim 2
Dependent Claim
114 words
A PROCESS FOR EFFECTING THE PROPER TIME ALIGNMENT OF A PLURALITY OF SEISMIC SIGNALS COMPRISING ALIGNING SAID PLURALITY OF SEISMIC SIGNALS FOR A PLURALITY OF VALUES OF DIP ANGLE, SUMMING THE ALIGNED SIGNALS CORRESPONDING TO EACH OF SAID VALUES OF DIP ANGLE TO FORM COMPOSITE SIGNALS, COMPARING THE INDIVIDUAL ALIGNED SIGNALS CORRESPONDING TO EACH OF SAID VALUES OF DIP ANGLE WITH THE RESPECTIVE COMPOSITE SIGNAL AND PRODUCING AN OUTPUT SIGNAL WHENEVER AN INDIVIDUAL ALIGNED SIGNAL IS IN PHASE WITH THE RESPECTIVE COMPOSITE SIGNAL, SUMMING THE OUTPUT SIGNALS CORRESPONDING TO EACH OF SAID VALUES OF DIP ANGLE TO FORM CORRELATION SIGNALS, AND COMPARING SAID CORRELATION SIGNALS TO THEREBY DETERMINE THE PROPER VALUE OF DIP ANGLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |