US3255347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for determining fluid flow rate in boreholes
Assignee: Halliburton Co
•
Filing: 1962-11-20
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Granted: 1966-06-07
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Expires: 1982-11-20
Abstract
No abstract record available.
Inventors
- 👤 Lewis A Cobb
- 👤 Wilton R Marshall
- 👤 Cyril R Sumner
- 👤 Walker Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:42
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/704
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A LOGGING SYSTEM FOR MEASURING FLOW RATES OF FLUIDS WITHIN A BOREHOLE WHEREIN AN ELONGATED LOGGING TOOL IS ADAPTED FOR SUSPENSION WITHIN THE BOREHOLE BY MEANS OF A WIRELINE FROM THE EARTH''S SURFACE AND TRACER EJECTOR MEANS AND RADIOACTIVE DETECTION MEANS ARE MOUNTED ON SAID TOOL THE IMPROVEMENT WHICH RESIDES IN PROVIDING SAID TOOL AS ITS UPPER END WITH A BORE HAVING ITS AXIS INCLINED WITH RESPECT TO THE AXIS OF SAID TOOL, PROVIDING SAID DETECTION MEANS IN THE FORM OF A PAIR OF SPACED APART DETECTORS EACH MOUNTED ON SAID TOOL AND BELOW SAID BORE WITH SAID EJECTOR BEING MOUNTED IN SAID BORE AND INCLUDING A TRACER MATERIAL AND EXPLOSIVE MEANS EFFECTIVE WHEN DETONATED TO PROPEL SAID TRACER MATERIAL OUT OF SAID BORE IN A GENERAL DOWNWARD DIRECTION
Claim 2
Dependent Claim
130 words
IN A LOGGING SYSTEM FOR MEASURING FLOW RATES OF FLUIDS WITHIN A BOREHOLE WHEREIN AN ELONGATED LOGGING TOOL IS ADAPTED FOR SUSPENSION WITHIN THE BOREHOLE BY MEANS OF A WIRELINE FROM THE EARTH''S SURFACE AND TRACER EJECTOR MEANS AND RADIOACTIVE DETECTION MEANS ARE MOUNTED ON SAID TOOL THE IMPROVEMENT WHICH RESIDES IN PROVIDING SAID TOOL AS ITS UPPER END WITH A BORE HAVING ITS AXIS INCLINED WITH RESPECT TO THE AXIS OF SAID TOOL, PROVIDING SAID DETECTION MEANS IN THE FORM OF A PAIR OF SPACED APART DETECTORS EACH MOUNTED ON SAID TOOL AND BELOW SAID BORE WITH SAID EJECTOR BEING MOUNTED IN SAID BORE AND INCLUDING A TRACER MATERIAL AND EXPLOSIVE MEANS EFFECTIVE WHEN DETONATED TO PROPEL SAID TRACER MATERIAL OUT OF SAID BORE IN A GENERAL DOWNWARD DIRECTION
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |