Patent US3372277A successfully refreshed from Google Patents.
US3372277A
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US
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Borehole activation logging system comprising varying strata irradiation as a function of the rate of change of tool velocity
Assignee: Dresser Industries Inc
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Filing: 1963-12-24
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Granted: 1968-03-05
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Expires: 1983-12-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Youmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:39
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A WELL LOGGING INSTRUMENT COMPRISING: A WELL LOGGING TOOL ADAPTED TO BE WITHDRAWAN FROM A WELL DURING LOGGING OPERATIONS; MEANS DISPOSED ON SAID TOOL FOR IRRADIIATING THE STRATA TRAVERSED BY SAID TOOL; A RADIATION DETECTOR RESPONSIVE TO RADIATION FROM SAID STRATA; MEANS FOR DETECTING VARIATIONS IN VELOCITY OF SAID TOOL WHILE BEING WITHDRAWN FROM SAID WELL; AND MEANS FOR DIRECTLY VARYING THE IRRADIATION TO WHICH SAID STRATA ARE SUBJECTED AS A FUNCTION OF THE RATE OF CHANGE OF VELOCITY OF SAID TOOL THEREBY PRODUCING UNIFORM IRRADIATION OF THE STRATA.
Claim 2
Dependent Claim
89 words
A WELL LOGGING INSTRUMENT COMPRISING: A WELL LOGGING TOOL ADAPTED TO BE WITHDRAWAN FROM A WELL DURING LOGGING OPERATIONS; MEANS DISPOSED ON SAID TOOL FOR IRRADIIATING THE STRATA TRAVERSED BY SAID TOOL; A RADIATION DETECTOR RESPONSIVE TO RADIATION FROM SAID STRATA; MEANS FOR DETECTING VARIATIONS IN VELOCITY OF SAID TOOL WHILE BEING WITHDRAWN FROM SAID WELL; AND MEANS FOR DIRECTLY VARYING THE IRRADIATION TO WHICH SAID STRATA ARE SUBJECTED AS A FUNCTION OF THE RATE OF CHANGE OF VELOCITY OF SAID TOOL THEREBY PRODUCING UNIFORM IRRADIATION OF THE STRATA.
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |