US2623596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing oil by means of carbon dioxide
Assignee: Atlantic Richfield Co
•
Filing: 1950-05-16
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Granted: 1952-12-30
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Expires: 1970-05-16
Abstract
No abstract record available.
Inventors
- 👤 Leonidas P Whorton
- 👤 Eugene R Brownscombe
- 👤 Alvin B Dyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:33
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/164; E21B43/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A METHOD FOR RECOVERING OIL FROM A SUBTERRANEAN OIL RESERVOIR IN COMMUNICATION WITH WHICH ARE AN INJECTION WELL AND A PRODUCING WELL, WHICH COMPRISES GAS SWEEPING SAID RESERVOIR BY INJECTING THEREINTO THROUGH THE INJECTION WELL, IN AN AMOUNT SUBSTANTIALLY LESS THAN ONE, BUT MORE THAN 0.1, HYDROCARBON PORE VOLUME, A SINGLE SLUG OF GAS COMPRISING CARBON DIOXIDE, THEREAFTER INJECTING THROUGH THE INJECTION WELL INTO THE RESERVIOR INERT FLUID TO CAUSE THE SLUG OF GAS TO PASS THROUGH THE RESERVOIR IN CONTACT WITH THE OIL CONTAINED THEREIN, SIMULTANEOUSLY WITH THE INJECTION STEPS MAINTAINING THE PRESSURE ON THE RESERVOIR IN THE RANGE FROM 1,000 P.S.I. TO 4,000 P.S.I., AND REMOVING TO THE EARTH''S SURFACE THROUGH THE PRODUCING WELL OIL SWEPT FROM THE RESERVOIR.
Claim 2
Independent Claim
121 words
A METHOD FOR RECOVERING OIL FROM A SUBTERRANEAN OIL RESERVOIR IN COMMUNICATION WITH WHICH ARE AN INJECTION WELL AND A PRODUCING WELL, WHICH COMPRISES GAS SWEEPING SAID RESERVOIR BY INJECTING THEREINTO THROUGH THE INJECTION WELL, IN AN AMOUNT SUBSTANTIALLY LESS THAN ONE, BUT MORE THAN 0.1, HYDROCARBON PORE VOLUME, A SINGLE SLUG OF GAS COMPRISING CARBON DIOXIDE, THEREAFTER INJECTING THROUGH THE INJECTION WELL INTO THE RESERVIOR INERT FLUID TO CAUSE THE SLUG OF GAS TO PASS THROUGH THE RESERVOIR IN CONTACT WITH THE OIL CONTAINED THEREIN, SIMULTANEOUSLY WITH THE INJECTION STEPS MAINTAINING THE PRESSURE ON THE RESERVOIR IN THE RANGE FROM 1,000 P.S.I. TO 4,000 P.S.I., AND REMOVING TO THE EARTH''S SURFACE THROUGH THE PRODUCING WELL OIL SWEPT FROM THE RESERVOIR.
References Cited (Backward Citations)
US1658305A
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US656466A
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US1415552A
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US1511067A
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US2347769A
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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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |