US3343597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection of micellar systems in oil recovery
Assignee: Marathon Oil Co
•
Filing: 1966-09-02
•
Granted: 1967-09-26
•
Expires: 1986-09-02
Abstract
No abstract record available.
Inventors
- 👤 William B Gogarty
- 👤 Russell W Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:26
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR THE RECOVERY OF FLUID PETROLEUM FROM PERMEABLE SUBTERRANEAN FORMATIONS HAVING AT LEAST ONE INJECTION MEANS AND ONE RECOVERY MEANS IN COMMUNICATION WITH SUCH FORMATIONS, THE STEPS COMPRISING INJECTING INTO THE SAID FORMATION THROUGH SAID INJECTION MEANS A SLUG OF INSULATING WATER, THEREAFTER INJECTING INTO SAID FORMATION A MICELLAR SYSTEM, DISPLACING SAID SLUG OF INSULATING WATER AND MICELLAR SYSTEM TOWARDS A RECOVERY MEANS AND RECOVERING FLUID PETROLEUM DISPLACED BY SAID WATER AND SAID MICELLAR SYSTEM.
Claim 2
Dependent Claim
77 words
A PROCESS FOR THE RECOVERY OF FLUID PETROLEUM FROM PERMEABLE SUBTERRANEAN FORMATIONS HAVING AT LEAST ONE INJECTION MEANS AND ONE RECOVERY MEANS IN COMMUNICATION WITH SUCH FORMATIONS, THE STEPS COMPRISING INJECTING INTO THE SAID FORMATION THROUGH SAID INJECTION MEANS A SLUG OF INSULATING WATER, THEREAFTER INJECTING INTO SAID FORMATION A MICELLAR SYSTEM, DISPLACING SAID SLUG OF INSULATING WATER AND MICELLAR SYSTEM TOWARDS A RECOVERY MEANS AND RECOVERING FLUID PETROLEUM DISPLACED BY SAID WATER AND SAID MICELLAR SYSTEM.
References Cited (Backward Citations)
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US3245467A
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |