Patent US2875833A successfully refreshed from Google Patents.
US2875833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering oil from oil fields involving the use of critically carbonated water
Assignee: Oil Recovery Corp
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Filing: 1954-02-04
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Granted: 1959-03-03
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Expires: 1974-02-04
Abstract
No abstract record available.
Inventors
- 👤 James W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:08
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/164; E21B43/34; E21B43/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD EFFECTING FURTHUR PRODUCTION OF PETRO LEUM FROM AN UNDERGROUND STRUCTUR E HAVING AT LEAST ONE INPUT AND ONE OUTPUT WELL, WITHOUT SUBSTANTIALLY FRA TIONATING THE PETROLEUM THEREIN AND PRECIPITATING THE RESULTANT HEAVIER ENDS THEREOF IN THE OIL STRUCTURE, COMPRISING ESTABLISHING AN AQUEOUS SOLUTION OF CARBON DIOXIDE IN THE UNDERGROUND OIL STRUCTURE ADJACENT TO THE BOTTOM OF THE INPUT WELL, CHARACTERIZED IN THAT SAID SOLUTION CONTAINS AT LEAST SIX VOLUMES OF CARBON DIOXIDE TO ONE VOLUME OF WATER AND NOT MORE CARBON DIOXIDE THAN WILL REMAIN IN SOLUTION WITHIN SAID STRUCTURE, CONTROLLING SAID SOLUTION TO MAINTAIN SAID VOLUME RATIOS OF CARBON DIOXIDE TO WATER IN SAID STRUCTURE AND TO CAUSE SAID SOLUTION TO
Claim 2
Independent Claim
114 words
A METHOD EFFECTING FURTHUR PRODUCTION OF PETRO LEUM FROM AN UNDERGROUND STRUCTUR E HAVING AT LEAST ONE INPUT AND ONE OUTPUT WELL, WITHOUT SUBSTANTIALLY FRA TIONATING THE PETROLEUM THEREIN AND PRECIPITATING THE RESULTANT HEAVIER ENDS THEREOF IN THE OIL STRUCTURE, COMPRISING ESTABLISHING AN AQUEOUS SOLUTION OF CARBON DIOXIDE IN THE UNDERGROUND OIL STRUCTURE ADJACENT TO THE BOTTOM OF THE INPUT WELL, CHARACTERIZED IN THAT SAID SOLUTION CONTAINS AT LEAST SIX VOLUMES OF CARBON DIOXIDE TO ONE VOLUME OF WATER AND NOT MORE CARBON DIOXIDE THAN WILL REMAIN IN SOLUTION WITHIN SAID STRUCTURE, CONTROLLING SAID SOLUTION TO MAINTAIN SAID VOLUME RATIOS OF CARBON DIOXIDE TO WATER IN SAID STRUCTURE AND TO CAUSE SAID SOLUTION TO
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |