US3076504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary oil recovery process
Assignee: Jersey Production Research Co
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Filing: 1958-06-19
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Granted: 1963-02-05
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Expires: 1978-06-19
Abstract
No abstract record available.
Inventors
- 👤 Victor G Meadors
- 👤 Charles D Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:49
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF RECOVERING OIL FROM A SUBTERRANEAN OILBEARING RESERVOIR WHICH IS PENETRATED BY AN INJECTION WELL AND A SPACED PRODUCTION WELL WHICH COMPRISES THE STEP OF INJECTING A LIQUID WHICH IS AT LEAST 50% BY VOLUME SOLUBLE WITHIN BOTH WATER AND THE RESERVOIR OIL, SAID LIQUID HAVING A VISCOSITY OF AT LEAST ABOUT 10 CENTIPOISES AND SUFFICIENT TO GIVE THE LIQUID A MOBILITY OF NOT MORE THAN ABOUT TWO TIMES THAT OF THE RESERVOIR OIL, AND WITHDRAWING OIL FROM THE PRODUCING WELL.
Claim 2
Independent Claim
83 words
A METHOD OF RECOVERING OIL FROM A SUBTERRANEAN OILBEARING RESERVOIR WHICH IS PENETRATED BY AN INJECTION WELL AND A SPACED PRODUCTION WELL WHICH COMPRISES THE STEP OF INJECTING A LIQUID WHICH IS AT LEAST 50% BY VOLUME SOLUBLE WITHIN BOTH WATER AND THE RESERVOIR OIL, SAID LIQUID HAVING A VISCOSITY OF AT LEAST ABOUT 10 CENTIPOISES AND SUFFICIENT TO GIVE THE LIQUID A MOBILITY OF NOT MORE THAN ABOUT TWO TIMES THAT OF THE RESERVOIR OIL, AND WITHDRAWING OIL FROM THE PRODUCING 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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |