US3266570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of petroleum by displacement with miscible fluids
Assignee: Marathon Oil Co
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Filing: 1963-05-27
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Granted: 1966-08-16
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 William B Gogarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:23
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE PROCESS FOR THE RECOVERY OF FLUID PETROLEUM HYDROCARBONS FROM HYDROCARBON-BEARING FORMATIONS COMPRISING (A) INJECTING INTO THE FORMATION, THROUGH AT LEAST ONE INJECTION WELL DRILLED INTO THE FORMATION, A SLUG OF SOLUBLE OIL; (B) INJECTING INTO THE FORMATION A SLUG OF EMULSION; (C) INJECTING INTO THE FORMATION WATER IN AMOUNTS EFFECTIVE TO DRIVE THE SOLUBLE OIL AND EMULSION THROUGH THE FORMATION; AND (D) RECOVERING, THROUGH AT LEAST ONE PRODUCTION WELL DRILLED INTO THE FORMATION, PETROLEUM.
Claim 2
Dependent Claim
75 words
THE PROCESS FOR THE RECOVERY OF FLUID PETROLEUM HYDROCARBONS FROM HYDROCARBON-BEARING FORMATIONS COMPRISING (A) INJECTING INTO THE FORMATION, THROUGH AT LEAST ONE INJECTION WELL DRILLED INTO THE FORMATION, A SLUG OF SOLUBLE OIL; (B) INJECTING INTO THE FORMATION A SLUG OF EMULSION; (C) INJECTING INTO THE FORMATION WATER IN AMOUNTS EFFECTIVE TO DRIVE THE SOLUBLE OIL AND EMULSION THROUGH THE FORMATION; AND (D) RECOVERING, THROUGH AT LEAST ONE PRODUCTION WELL DRILLED INTO THE FORMATION, PETROLEUM.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |