US3130808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical well fluid logging
Assignee: Texaco Inc
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Filing: 1960-09-26
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Granted: 1964-04-28
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Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Hugh O Walker
- 👤 Robert J Loofbourrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:21
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
THE METHOD OF LOGGING FLUIDS HAVING DIFFERENT ACOUSTIC PROPERTIES CONTAINED IN A BOREHOLE WHICH COMPRISES PRODUCING ACOUSTIC ENERGY IN THE FORM OF ACOUSTIC PULSES AT A FIRST POINT IN SAID FLUIDS, SELECTIVELY DETECTING A FIRST PORTION OF SAID ACOUSTIC ENERGY TO ARRIVE AT A SECOND POINT IN SAID FLUIDS, SAID SECOND POINT BEING SO SPACED FROM SAID FIRST POINT THAT THE DIRECT PATH THROUGH SAID FLUID BETWEEN SAID FIRST AND SECOND POINTS IS THE SHORTEST ACOUSTIC PATH BETWEEN SAID FIRST AND SECOND POINTS WHEREBY SAID PORTION OF ENERGY OF SAID ACOUSTIC ENERGY DETECTED AT SAID SECOND POINT IS THAT WHICH HAS PASSED THROUGH THE BOREHOLE FLUIDS IN A DIRECT PATH BETWEEN SAID FIRST AND SECOND POINTS AND IS THE FIRST ENERGY OF SAID ACOUSTIC ENERGY TO ARRIVE AT SAID SECOND POINT, SAID PORTION OF ACOUSTIC ENERGY SELECTIVELY DETECTED AT SAID SECOND POINT COMPRISING THE FIRST PULSE TO ARRIVE AT SAID SECOND POINT FOLLOWING THE PRODUCTION OF A GIVEN ONE OF SAID ACOUSTIC PULSES AT
Claim 2
Independent Claim
164 words
THE METHOD OF LOGGING FLUIDS HAVING DIFFERENT ACOUSTIC PROPERTIES CONTAINED IN A BOREHOLE WHICH COMPRISES PRODUCING ACOUSTIC ENERGY IN THE FORM OF ACOUSTIC PULSES AT A FIRST POINT IN SAID FLUIDS, SELECTIVELY DETECTING A FIRST PORTION OF SAID ACOUSTIC ENERGY TO ARRIVE AT A SECOND POINT IN SAID FLUIDS, SAID SECOND POINT BEING SO SPACED FROM SAID FIRST POINT THAT THE DIRECT PATH THROUGH SAID FLUID BETWEEN SAID FIRST AND SECOND POINTS IS THE SHORTEST ACOUSTIC PATH BETWEEN SAID FIRST AND SECOND POINTS WHEREBY SAID PORTION OF ENERGY OF SAID ACOUSTIC ENERGY DETECTED AT SAID SECOND POINT IS THAT WHICH HAS PASSED THROUGH THE BOREHOLE FLUIDS IN A DIRECT PATH BETWEEN SAID FIRST AND SECOND POINTS AND IS THE FIRST ENERGY OF SAID ACOUSTIC ENERGY TO ARRIVE AT SAID SECOND POINT, SAID PORTION OF ACOUSTIC ENERGY SELECTIVELY DETECTED AT SAID SECOND POINT COMPRISING THE FIRST PULSE TO ARRIVE AT SAID SECOND POINT FOLLOWING THE PRODUCTION OF A GIVEN ONE OF SAID ACOUSTIC PULSES AT
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |