US3312934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring acoustic velocity over two travel paths
Assignee: Mobil Oil AS
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Filing: 1963-07-12
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Granted: 1967-04-04
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Allen A Stripling
- 👤 Jr Joseph Zemanek
- 👤 Sibyl A Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF ACOUSTICAL WELL LOGGING COMPRISING: GENERATING ACOUSTICAL IMPULSES AT A POINT WITHIN A BOREHOLE; RECEIVING SAID ACOUSTICAL IMPULSES OVER AT LEAST TWO SEPARATE EQUAL LENGTH INTERVALS, SAID EQUAL LENGTH INTERVALS BEING LOCATED AT DIFFERENT RANGES FROM SAID POINT AND REGISTERING ON A SCALE RELATED TO THE DEPTH OF SAID POINT IN THE BOREHOLE A QUANTITY WHOSE MAGNITUDE IS RELATED TO THE DIFFERENCE IN TRAVEL TIME OF THE ACOUSTICAL IMPULSE OVER SAID TWO SEPARATE EQUAL LENGTH INTERVALS.
Claim 2
Independent Claim
70 words
A METHOD OF ACOUSTICAL WELL LOGGING COMPRISING: GENERATING ACOUSTICAL IMPULSES AT POINTS WITHIN A BOREHOLE; GENERATING SIGNALS INDICATING THE DURATION OF TIME PERIODS REQUIRED FOR SAID ACOUSTICAL IMPULSES TO TRAVEL TWO EQUAL INTERVALS LOCATED AT DIFFERENT FIXED RANGES FROM SAID POINTS IN THE BOREHOLE; TRANSMITTING THE GENERATED SIGNALS TO THE SURFACE AND REGISTERING QUANTITIES WHOSE MAGNITUDES ARE RELATED TO THE DIFFERENCE BETWEEN THE TWO TIME PERIODS INDICATED BY SAID SIGNALS.
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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |