US2747099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well bore logging
Assignee: Union Oil Company of California
•
Filing: 1953-01-29
•
Granted: 1956-05-22
•
Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Nowak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:29
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD FOR LOGGING BOREHOLES DRILLED INTO THE EARTH AND WHICH PENETRATE PERMEABLE STRATA PRODUCING IMMISCIBLE FLUIDS WHICH COMPRISES FORMING A RADIOACTIVE INJECTION FLUID MISCIBLE WITH AT LEAST ONE BUT NOT ALL OF THE IMMISCIBLE FLUIDS PRODUCED FROM SUBSURFACE PERMEABLE STRATA, FORCING SAID INJECTION FLUID INDISCRIMINATELY INTO ALL OF SAID PERMEABLE STRATA, SUBSEQUENTLY PLACING THE WELL BORE BACK ON PRODUCTION WHEREBY FLUIDS INDIGENOUS TO SAID PERMEABLE STRATA FLOW THERETHROUGH INTO SAID BOREHOLE AND ARE REMOVED THEREFROM AND WHEREBY THE RADIOACTIVE INJECTION FLUID IS MORE COMPLETELY SWEPT OUT OF THE STRATA PRODUCING A FLUID MISCIBLE THEREWITH THAN OUT OF THE STRATA PRODUCING A FLUID IMMISCIBLE THEREWITH, SUBSEQUENTLY LOGGING SAID BORE BY MEASURING THE RADIATION INTENSITY WITH DEPTH AND THEREBY LOCATING AND DISTINGUISHING THE LESS RADIOACTIVE STRATA PRODUCING FLUID MISCIBLE WITH SAID INJECTION FLUID FROM THE MORE RADIOACTIVE STRATA PRODUCING A FLUID IMMISCIBLE WITH SAID INJECTION FLUID.
Claim 2
Independent Claim
145 words
A METHOD FOR LOGGING BOREHOLES DRILLED INTO THE EARTH AND WHICH PENETRATE PERMEABLE STRATA PRODUCING IMMISCIBLE FLUIDS WHICH COMPRISES FORMING A RADIOACTIVE INJECTION FLUID MISCIBLE WITH AT LEAST ONE BUT NOT ALL OF THE IMMISCIBLE FLUIDS PRODUCED FROM SUBSURFACE PERMEABLE STRATA, FORCING SAID INJECTION FLUID INDISCRIMINATELY INTO ALL OF SAID PERMEABLE STRATA, SUBSEQUENTLY PLACING THE WELL BORE BACK ON PRODUCTION WHEREBY FLUIDS INDIGENOUS TO SAID PERMEABLE STRATA FLOW THERETHROUGH INTO SAID BOREHOLE AND ARE REMOVED THEREFROM AND WHEREBY THE RADIOACTIVE INJECTION FLUID IS MORE COMPLETELY SWEPT OUT OF THE STRATA PRODUCING A FLUID MISCIBLE THEREWITH THAN OUT OF THE STRATA PRODUCING A FLUID IMMISCIBLE THEREWITH, SUBSEQUENTLY LOGGING SAID BORE BY MEASURING THE RADIATION INTENSITY WITH DEPTH AND THEREBY LOCATING AND DISTINGUISHING THE LESS RADIOACTIVE STRATA PRODUCING FLUID MISCIBLE WITH SAID INJECTION FLUID FROM THE MORE RADIOACTIVE STRATA PRODUCING A FLUID IMMISCIBLE WITH SAID INJECTION FLUID.
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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |