US3406284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining direction and velocities of fluid flow into a well by means ofradioactive tracer introduction into the well
Assignee: Cardinal Surveys Co
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Filing: 1964-08-19
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Granted: 1968-10-15
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Marcus C Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:40
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02; E; E21; E21B; E21B47/00; E21B47/10; E21B47/11; E21B47/111
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE METHOD OF INVESTIGATING IN A WELL THE FLOW OF WATER INTRODUCED IN THE WELL AND INTO EARTH FORMATIONS PENETRATED BY THE WELL INCLUDING: INTRODUCING WATER AT A CONSTANT RATE FOR A PREDETERMINED PERIOD OF TIME SUFFICIENTLY LONG TO CAUSE STABILIZATION OF WATER FLOW INTO THE EARTH FORMATIONS AND DURING THE INVESTIGATION; POSITIONING A DETECTOR DEVICE IN THE WELL ABOVE THE EXPECTED LOCATIONS OF OUTWARD FLOW OF WATER INTO THE EARTH FORMATIONS; INTRODUCING A QUANTITY OF TRACER MATERIAL INTO THE WELL A PREDTERMINED DISTANCE ABOVE THE DETECTOR DEVICE; DETERMINING BY THE OUTPUT OF THE DETECTOR DEVICE THE PERIOD OF TIME REQUIRED FOR THE TRACER MATERIAL TO MOVE PAST THE DETECTOR AFTER ITS INTRODUCTION INTO THE WELL; AND THEN MOVING THE DETECTOR DEVICE SUCCESSIVELY IN THE WELL AND THROUGH THE TRACER MATERIAL AS IT MOVES DOWNWARDLY IN THE WELL TO DETERMINE LOCATIONS OF OUTWARD FLOW OF THE TRACER MATERIAL FROM THE WELL.
Claim 2
Independent Claim
151 words
THE METHOD OF INVESTIGATING IN A WELL THE FLOW OF WATER INTRODUCED IN THE WELL AND INTO EARTH FORMATIONS PENETRATED BY THE WELL INCLUDING: INTRODUCING WATER AT A CONSTANT RATE FOR A PREDETERMINED PERIOD OF TIME SUFFICIENTLY LONG TO CAUSE STABILIZATION OF WATER FLOW INTO THE EARTH FORMATIONS AND DURING THE INVESTIGATION; POSITIONING A DETECTOR DEVICE IN THE WELL ABOVE THE EXPECTED LOCATIONS OF OUTWARD FLOW OF WATER INTO THE EARTH FORMATIONS; INTRODUCING A QUANTITY OF TRACER MATERIAL INTO THE WELL A PREDTERMINED DISTANCE ABOVE THE DETECTOR DEVICE; DETERMINING BY THE OUTPUT OF THE DETECTOR DEVICE THE PERIOD OF TIME REQUIRED FOR THE TRACER MATERIAL TO MOVE PAST THE DETECTOR AFTER ITS INTRODUCTION INTO THE WELL; AND THEN MOVING THE DETECTOR DEVICE SUCCESSIVELY IN THE WELL AND THROUGH THE TRACER MATERIAL AS IT MOVES DOWNWARDLY IN THE WELL TO DETERMINE LOCATIONS OF OUTWARD FLOW OF THE TRACER MATERIAL FROM THE WELL.
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |