US3295100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic logging of subsurface discontinuities
Assignee: Texaco Development Corp
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Filing: 1963-12-26
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Granted: 1966-12-27
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Fontaine C Armistead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:03
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
IN ACOUSTIC LOGGING OF A BOREHOLE THE COMBINATION COMPRISING A LOGGING TOOL ADAPTED FOR PASSING THROUGH THE BOREHOLE, FIRST, SECOND AND THIRD TRANSDUCER LOCATED LONGITUDINALLY IN SAID LOGGING TOOL, SAID FIRST AND SECOND TRANSDUCERS BEING RECEIVING TRANSDUCERS AND SAID THIRD TRANSDUCER BEING A TRANSMITTING TRANSDUCER POSITIONED INTERMEDIATE SAID RECEIVING TRANSDUCERS, MEANS FOR TRIGGERING SAID TRANSMITTING TRANSDUCER SO AS TO CAUSE TRANSMISSION OF SEISMIC WAVE PULSES INTO ADJACENT BOREHOLE FORMATION, SAID SEISMIC WAVE PULSES BEING RECEIVED BY SAID FIRST AND SECOND TRANSDUCERS, MEANS FOR PROVIDING A FIRST AND SECOND ELECTRIC PULSE AT THE TIME OF ARRIVAL OF A SEISMIC PULSE AT SAID RESPECTIVE FIRST AND SECOND RECEIVING TRANSDUCERS, DELAY MEANS CONNECTED TO THE LAST MENTIONED MEANS FOR DELAYING ONE OF THE FIRST AND SECOND ELECTRIC PULSES BY AN AMOUNT GREATER THAN THE PREDETERMINED MAXIMUM TIME DIFFERENCE TO BE ENCOUNTERED IN ACTUAL PRACTICE BETWEEN RECEPTION OF ANY ONE OF SAID TRANSMITTED ACOUSTIC WAVE PULSES AT SAID FIRST AND SECOND RECEIVING TRANSDUCERS, MEANS DEFINING A SINGLE ELECTRICAL CHANNEL CONNECTED TO SAID MEANS FOR PROVIDING A FIRST AND SECOND ELECTRICAL PULSE FOR CONDUCTING SAID DELAYED ONE OF SAID FIRST AND SECOND ELECTRICAL PULSES AND THE OTHER ONE OF
Claim 2
Dependent Claim
194 words
IN ACOUSTIC LOGGING OF A BOREHOLE THE COMBINATION COMPRISING A LOGGING TOOL ADAPTED FOR PASSING THROUGH THE BOREHOLE, FIRST, SECOND AND THIRD TRANSDUCER LOCATED LONGITUDINALLY IN SAID LOGGING TOOL, SAID FIRST AND SECOND TRANSDUCERS BEING RECEIVING TRANSDUCERS AND SAID THIRD TRANSDUCER BEING A TRANSMITTING TRANSDUCER POSITIONED INTERMEDIATE SAID RECEIVING TRANSDUCERS, MEANS FOR TRIGGERING SAID TRANSMITTING TRANSDUCER SO AS TO CAUSE TRANSMISSION OF SEISMIC WAVE PULSES INTO ADJACENT BOREHOLE FORMATION, SAID SEISMIC WAVE PULSES BEING RECEIVED BY SAID FIRST AND SECOND TRANSDUCERS, MEANS FOR PROVIDING A FIRST AND SECOND ELECTRIC PULSE AT THE TIME OF ARRIVAL OF A SEISMIC PULSE AT SAID RESPECTIVE FIRST AND SECOND RECEIVING TRANSDUCERS, DELAY MEANS CONNECTED TO THE LAST MENTIONED MEANS FOR DELAYING ONE OF THE FIRST AND SECOND ELECTRIC PULSES BY AN AMOUNT GREATER THAN THE PREDETERMINED MAXIMUM TIME DIFFERENCE TO BE ENCOUNTERED IN ACTUAL PRACTICE BETWEEN RECEPTION OF ANY ONE OF SAID TRANSMITTED ACOUSTIC WAVE PULSES AT SAID FIRST AND SECOND RECEIVING TRANSDUCERS, MEANS DEFINING A SINGLE ELECTRICAL CHANNEL CONNECTED TO SAID MEANS FOR PROVIDING A FIRST AND SECOND ELECTRICAL PULSE FOR CONDUCTING SAID DELAYED ONE OF SAID FIRST AND SECOND ELECTRICAL PULSES AND THE OTHER ONE OF
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |