Patent US3602878A successfully refreshed from Google Patents.
US3602878A
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US
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Method and apparatus for generating enhanced acoustic waves
Assignee: Texas Instruments Inc
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Filing: 1969-04-14
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Granted: 1971-08-31
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Expires: 1989-04-14
Abstract
Abstract A plurality of air guns are streamed along a marine traverse, certain of the air guns having different volume capacities to generate acoustic waves having different frequency contents and pressure wave characteristics. Circuitry is provided to sequentially fire the air guns such that the first high energy oscillations of all the acoustic waves occur at the same time, thereby providing a resultant acoustic signal having an enhanced high energy oscillation.
Inventors
- 👤 Lawrence B Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:20
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/003; G01V1/006
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
109 words
A system for marine seismic exploration comprising: a. a plurality of acoustic wave generators adapted to be streamed along a marine traverse, ones of said generators operable to emit an acoustic wave, each of the waves having a first high energy oscillation which occurs a time different from the high energy oscillation of other waves, b. firing means operable to initiate the generation of acoustic waves from said generators, and c. means for delaying the firing of ones of said generators such that each of said first high energy oscillations of each of said acoustic waves occur at substantially the same time for enhancement of the resultant acoustic wave.
Claim 2
Independent Claim
109 words
A system for marine seismic exploration comprising: a. a plurality of acoustic wave generators adapted to be streamed along a marine traverse, ones of said generators operable to emit an acoustic wave, each of the waves having a first high energy oscillation which occurs a time different from the high energy oscillation of other waves, b. firing means operable to initiate the generation of acoustic waves from said generators, and c. means for delaying the firing of ones of said generators such that each of said first high energy oscillations of each of said acoustic waves occur at substantially the same time for enhancement of the resultant acoustic wave.
Claim 3
Dependent Claim
54 words
The system of claim 1 wherein said acoustic wave generators comprise air guns whereby confined volumes of high-pressure air are suddenly released underwater, ones of said air guns having different volume capacities to thereby produce acoustic waves with first high energy bubble oscillations which occur at different times after firing of said air guns.
Claim 4
Dependent Claim
47 words
The system of claim 2 and comprising: means for first firing the air gun having the largest volume capacity and then sequentially delaying the firing of said air guns having smaller volume capacities for time intervals dependent upon the occurrence of their first high energy bubble oscillations.
Claim 5
Independent Claim
98 words
The method of marine seismic exploration comprising: a. streaming a plurality of seismic disturbance generators along a marine traverse, b. generating seismic disturbances from each of said generators, each of said disturbances producing a first high energy oscillation which normally occurs at a time different from the first high energy oscillation of other disturbances, c. delaying the generation of ones of said seismic disturbances so that the first high energy bubble oscillation produced by each generator occurs at generally the same time for enhancement of the resultant acoustic disturbance, and d. receiving reflected portions of said seismic disturbances.
Claim 6
Independent Claim
98 words
The method of marine seismic exploration comprising: a. streaming a plurality of seismic disturbance generators along a marine traverse, b. generating seismic disturbances from each of said generators, each of said disturbances producing a first high energy oscillation which normally occurs at a time different from the first high energy oscillation of other disturbances, c. delaying the generation of ones of said seismic disturbances so that the first high energy bubble oscillation produced by each generator occurs at generally the same time for enhancement of the resultant acoustic disturbance, and d. receiving reflected portions of said seismic disturbances.
Claim 7
Dependent Claim
20 words
The method of claim 4 wherein said seismic disturbances are generated by suddenly releasing confined volumes of high-pressure gas underwater.
Claim 8
Dependent Claim
25 words
The method of claim 5 wherein ones of said confined volumes are of different capacities to thereby produce seismic disturbances having different pressure wave characteristics.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |