Patent US3252131A successfully refreshed from Google Patents.
US3252131A
Expired / Lapsed
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Method of acoustic well logging that retains characteristics of later arriving waves
Assignee: Shell USA Inc
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Filing: 1962-09-10
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Granted: 1966-05-17
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Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Charles B Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:31
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF ACOUSTICALLY LOGGING A BOREHOLE TO OBTAIN A RECORD OF THE VELOCITY OF COMPRESSION WAVES THROUGH FORMATIONS SURROUNDING THE BOREHOLE AND A RECORD OF SLOWER ARRIVING WAVES, SAID METHOD COMPRISING: GENERATING AN ACOUSTICAL INPULSE AT A POINT WITHIN THE BOREHOLE; RECEIVING THE WAVES RESULTING FROM SAID ACOUSTICAL IMPULSE AT A POINT SPACED FROM THE POINT OF GENERATION AND CONVERTING THE RECEIVED WAVES TO A RELATED ELECTRICAL SIGNAL; TRANSMITTING THE FIRST PORTION OF SAID ELECTRICAL SIGNAL AT A HIGH AMPLIFICATION TO A RECORDING SYSTEM, THEN TRANS-
Claim 2
Independent Claim
87 words
A METHOD OF ACOUSTICALLY LOGGING A BOREHOLE TO OBTAIN A RECORD OF THE VELOCITY OF COMPRESSION WAVES THROUGH FORMATIONS SURROUNDING THE BOREHOLE AND A RECORD OF SLOWER ARRIVING WAVES, SAID METHOD COMPRISING: GENERATING AN ACOUSTICAL INPULSE AT A POINT WITHIN THE BOREHOLE; RECEIVING THE WAVES RESULTING FROM SAID ACOUSTICAL IMPULSE AT A POINT SPACED FROM THE POINT OF GENERATION AND CONVERTING THE RECEIVED WAVES TO A RELATED ELECTRICAL SIGNAL; TRANSMITTING THE FIRST PORTION OF SAID ELECTRICAL SIGNAL AT A HIGH AMPLIFICATION TO A RECORDING SYSTEM, THEN TRANS-
References Cited (Backward Citations)
US2233992A
Cited
US2651027A
Cited
US2974303A
Cited
US2968724A
Cited
US3071203A
Cited
US3102251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |