Patent US2074583A successfully refreshed from Google Patents.
Patent US3249157A successfully refreshed from Google Patents.
US3249157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery process for producing petroleum
Assignee: ConocoPhillips Co
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Filing: 1963-06-06
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Granted: 1966-05-03
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Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 William E Brigham
- 👤 John N Dew
- 👤 Philip W Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:41
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD FOR INCREASING THE AMOUNT OF OIL RECOVERED FROM AN OIL BEARING FORMATION TRAVERSED BY AT LEAST TWO WELLS, WHICH METHOD COMPRISES: (A) INJECTING INTO SAID FORMATION FROM ONE OF SAID WELLS A FLUID MISICIBLE WITH A FLUID IN THE FORMATION ADJACENT SAID ONE WELL; AND (B) INJECTING INTO SAID ONE WELL A FLUID WHICH IS SUBSTANTIALLY IMMISCIBLE WITH SAID MISCIBLE FLUID AND WITH THE NATURALLY OCCURRING HYDROCARBONS IN SAID FORMATION, THE RATIO OF THE MISCIBLE FLUID TO THE IMMISCIBLE LIQUID VARYING FROM ABOUT 3:2 TO ABOUT 9:1 AND THE AMOUNT OF EITHER OF SAID FLUIDS WHICH IS INJECTED INTO SAID FORMATION AT ONE CONTINUOUS INJECTION BEING BE-
Claim 2
Independent Claim
109 words
A METHOD FOR INCREASING THE AMOUNT OF OIL RECOVERED FROM AN OIL BEARING FORMATION TRAVERSED BY AT LEAST TWO WELLS, WHICH METHOD COMPRISES: (A) INJECTING INTO SAID FORMATION FROM ONE OF SAID WELLS A FLUID MISICIBLE WITH A FLUID IN THE FORMATION ADJACENT SAID ONE WELL; AND (B) INJECTING INTO SAID ONE WELL A FLUID WHICH IS SUBSTANTIALLY IMMISCIBLE WITH SAID MISCIBLE FLUID AND WITH THE NATURALLY OCCURRING HYDROCARBONS IN SAID FORMATION, THE RATIO OF THE MISCIBLE FLUID TO THE IMMISCIBLE LIQUID VARYING FROM ABOUT 3:2 TO ABOUT 9:1 AND THE AMOUNT OF EITHER OF SAID FLUIDS WHICH IS INJECTED INTO SAID FORMATION AT ONE CONTINUOUS INJECTION BEING BE-
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |