US3512407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic and radioactivity logging method and apparatus
Assignee: Schlumberger Technology Corp
•
Filing: 1961-08-08
•
Granted: 1970-05-19
•
Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Fred W Zill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:06
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/005; G; G01; G01V; G01V1/00; G01V1/40; G01V1/44; G01V11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A LOGGING SYSTEM COMPRISING AN EXPLORATORY PROBE ARRANGED FOR PASSAGE THROUGH A WELL BORE, ACOUSTIC LOGGING MEANS CARRIED THEREBY INCLUDING TRANSMITTER MEANS AND AT LEAST ONE RECEIVER MEANS JOINTLY TO PROBE THE MATERIAL SURROUNDING THE WELL BORE WITH ACOUSTIC IMPULSES, MEANS FOR OBTAINING ELECTRICAL SIGNALS REPRESENTATIVE OF AMPLITUDE CHARACTERISTICS OF THE ACOUSTIC IMPULSES INTERCEPTED BY SAID RECEIVER MEANS, MEANS COUPLED BETWEEN SAID TRANSMITTER AND RECEIVER MEANS FOR RESTRICTING THE PASSAGE TO A CABLE CONDUCTOR OF AN ELECTRICAL IMPULSE CORRESPONDING TO AN ACOUSTIC IMPULSE INTERCEPTED BY SAID RECEIVER MEANS TO A PREDETERMINED TIME INTERVAL AFTER ITS EMISSION BY SAID TRANSMITTER MEANS, AND SURFACE CON-
Claim 2
Dependent Claim
103 words
A LOGGING SYSTEM COMPRISING AN EXPLORATORY PROBE ARRANGED FOR PASSAGE THROUGH A WELL BORE, ACOUSTIC LOGGING MEANS CARRIED THEREBY INCLUDING TRANSMITTER MEANS AND AT LEAST ONE RECEIVER MEANS JOINTLY TO PROBE THE MATERIAL SURROUNDING THE WELL BORE WITH ACOUSTIC IMPULSES, MEANS FOR OBTAINING ELECTRICAL SIGNALS REPRESENTATIVE OF AMPLITUDE CHARACTERISTICS OF THE ACOUSTIC IMPULSES INTERCEPTED BY SAID RECEIVER MEANS, MEANS COUPLED BETWEEN SAID TRANSMITTER AND RECEIVER MEANS FOR RESTRICTING THE PASSAGE TO A CABLE CONDUCTOR OF AN ELECTRICAL IMPULSE CORRESPONDING TO AN ACOUSTIC IMPULSE INTERCEPTED BY SAID RECEIVER MEANS TO A PREDETERMINED TIME INTERVAL AFTER ITS EMISSION BY SAID TRANSMITTER MEANS, AND SURFACE CON-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |