US3292729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Velocity logging apparatus
Assignee: Schlumberger Well Surveying Corp
•
Filing: 1959-12-23
•
Granted: 1966-12-20
•
Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert B Blizard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:52
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
ACOUSTIC WELL LOGGING APPARATUS COMPRISING: A SUPPORT FOR LOWERING IN A WELL BORE, MORE THAN TWO ACOUSTIC RECEIVERS SPACED ALONG SAID SUPPORT, MEANS COUPLED TO SAID RECEIVERS FOR PRODUCING ELECTRICAL PULSE SIGNALS AT TIMES CORRESPONDING TO THE SUCCESSIVE INCIDENCE OF A PULSE OF ACOUSTIC ENERGY WITH SAID RECEIVERS, MEANS RESPONSIVE TO EACH OF SAID PULSE SIGNALS FOR DEVELOPING CODED SIGNALS UNIQUELY IDENTIFYING SAID RESPECTIVE PULSE SIGNALS WITH THE CORRESPONDING RECEIVERS, AND MEANS RESPONSIVE TO A SELECTED PAIR OF CODED SIGNALS FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE TIME INTERVAL BETWEEN THE OCCURRENCE OF SAID PULSE SIGNALS WHICH CORRESPOND TO SAID SELECTED PAIR OF CODED SIGNALS.
Claim 2
Dependent Claim
105 words
ACOUSTIC WELL LOGGING APPARATUS COMPRISING: A SUPPORT FOR LOWERING IN A WELL BORE, MORE THAN TWO ACOUSTIC RECEIVERS SPACED ALONG SAID SUPPORT, MEANS COUPLED TO SAID RECEIVERS FOR PRODUCING ELECTRICAL PULSE SIGNALS AT TIMES CORRESPONDING TO THE SUCCESSIVE INCIDENCE OF A PULSE OF ACOUSTIC ENERGY WITH SAID RECEIVERS, MEANS RESPONSIVE TO EACH OF SAID PULSE SIGNALS FOR DEVELOPING CODED SIGNALS UNIQUELY IDENTIFYING SAID RESPECTIVE PULSE SIGNALS WITH THE CORRESPONDING RECEIVERS, AND MEANS RESPONSIVE TO A SELECTED PAIR OF CODED SIGNALS FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE TIME INTERVAL BETWEEN THE OCCURRENCE OF SAID PULSE SIGNALS WHICH CORRESPOND TO SAID SELECTED PAIR OF CODED SIGNALS.
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |