Patent US3087541A successfully refreshed from Google Patents.
US3087541A
Expired / Lapsed
US
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In situ combustion process
Assignee: Jersey Production Research Co
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Filing: 1960-05-09
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Granted: 1963-04-30
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Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Elzinga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:05
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN IN SITU COMBUSTION PROCESS FOR THE PRODUCTION OF OIL FROM AN OIL-BEARING SUBTERRANEAN RESERVOIR PENETRATED BY AN INJECTION WELL AND PRODUCTION WELL, SAID RESERVOIR BEING CHARACTERIZED BY A TENDENCY TO OVERBURN, WHICH COMPRISES INJECTING AN OXYGEN-CONTAINING GAS INTO SAID RESERVOIR THROUGH SAID INJECTION WELL, IGNITING SAID RESERVOIR OIL IN THE VICINITY OF SAID INJECTION WELL THEREBY GENERATING A COMBUSTION FRONT; PROPAGATING SAID COMBUSTION FRONT TOWARD SAID PRODUCTION WELL BY CONTINUING SAID INJECTION OF OXYGEN-CONTAINING GAS; PRODUCING OIL FROM SAID PRODUCTION WELL; CONTINUING TO INJECT OXYGENCONTAINING GAS UNTIL SAID COMBUSTION FRONT REACHES THE VICINITY OF SAID PRODUCTION WELL; THEREAFTER, WHILE COMBUSTION OF RESERVOIR OIL CONTINUES, INTRODUCING A FUEL INTO THE BURNED REGION OF SAID RESERVOIR THROUGH WHICH SAID COMBUSTION FRONT HAS PASSED, SAID STEP OF INTRODUCING FUEL BBEING COMMENCED BEFORE THE TEMPERATURE OF SAID BURNED REGION HAS FALLEN BELOW THE IGNITION TEMPERATURE OF SAID FUEL; CONCURRENTLY AND SEPARATELY INTRODUCING ADDITIONAL
Claim 2
Dependent Claim
150 words
AN IN SITU COMBUSTION PROCESS FOR THE PRODUCTION OF OIL FROM AN OIL-BEARING SUBTERRANEAN RESERVOIR PENETRATED BY AN INJECTION WELL AND PRODUCTION WELL, SAID RESERVOIR BEING CHARACTERIZED BY A TENDENCY TO OVERBURN, WHICH COMPRISES INJECTING AN OXYGEN-CONTAINING GAS INTO SAID RESERVOIR THROUGH SAID INJECTION WELL, IGNITING SAID RESERVOIR OIL IN THE VICINITY OF SAID INJECTION WELL THEREBY GENERATING A COMBUSTION FRONT; PROPAGATING SAID COMBUSTION FRONT TOWARD SAID PRODUCTION WELL BY CONTINUING SAID INJECTION OF OXYGEN-CONTAINING GAS; PRODUCING OIL FROM SAID PRODUCTION WELL; CONTINUING TO INJECT OXYGENCONTAINING GAS UNTIL SAID COMBUSTION FRONT REACHES THE VICINITY OF SAID PRODUCTION WELL; THEREAFTER, WHILE COMBUSTION OF RESERVOIR OIL CONTINUES, INTRODUCING A FUEL INTO THE BURNED REGION OF SAID RESERVOIR THROUGH WHICH SAID COMBUSTION FRONT HAS PASSED, SAID STEP OF INTRODUCING FUEL BBEING COMMENCED BEFORE THE TEMPERATURE OF SAID BURNED REGION HAS FALLEN BELOW THE IGNITION TEMPERATURE OF SAID FUEL; CONCURRENTLY AND SEPARATELY INTRODUCING ADDITIONAL
References Cited (Backward Citations)
US2913050A
Cited
US2793697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |