Patent US3333238A successfully refreshed from Google Patents.
US3333238A
Expired / Lapsed
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Shear wave acoustic logging
Assignee: Mobil Oil AS
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Filing: 1965-06-14
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Granted: 1967-07-25
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Richard L Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:33
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN ACOUSTIC WELL LOGGING WHEREIN REPETITIVE TIMESPACED PULSES OF A COUSTIC ENERGY FROM A SOURCE ARE EACH DETECTED AT A DETECTOR MOVED ALONG A BOREHOLE IN FIXED SPACED RELATIONSHIP TO THE SOURCE AND WHEREIN THE ACOUSTIC ENERGY ARRIVAL AT THE DETECTOR COMPRISES A SERIES OF WAVE TRAINS, EACH INCLUDING A FIRST-ARRIVING COMPRESSIONAL WAVE EVENT AND A LATER-ARRIVING SHEAR WAVE EVENT, THE METHOD COMPRISING THE STEPS OF: (A) MEASURING THE TRAVEL TIME THROUGH THE FORMATIONS OF THE FIRST-ARRIVING COMPRESSIONAL WAVE EVENT,
Claim 2
Dependent Claim
80 words
IN ACOUSTIC WELL LOGGING WHEREIN REPETITIVE TIMESPACED PULSES OF A COUSTIC ENERGY FROM A SOURCE ARE EACH DETECTED AT A DETECTOR MOVED ALONG A BOREHOLE IN FIXED SPACED RELATIONSHIP TO THE SOURCE AND WHEREIN THE ACOUSTIC ENERGY ARRIVAL AT THE DETECTOR COMPRISES A SERIES OF WAVE TRAINS, EACH INCLUDING A FIRST-ARRIVING COMPRESSIONAL WAVE EVENT AND A LATER-ARRIVING SHEAR WAVE EVENT, THE METHOD COMPRISING THE STEPS OF: (A) MEASURING THE TRAVEL TIME THROUGH THE FORMATIONS OF THE FIRST-ARRIVING COMPRESSIONAL WAVE EVENT,
References Cited (Backward Citations)
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |