Patent US3157230A successfully refreshed from Google Patents.
US3157230A
Expired / Lapsed
US
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Method of recovering oil from an oil-bearing reservoir
Assignee: ExxonMobil Oil Corp
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Filing: 1960-12-16
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Granted: 1964-11-17
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Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl Connally
- 👤 Lorld G Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:35
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A METHOD OF RECOVERING OIL FROM A SUBTERRANEAN RESERVOIR PROVIDED WITH AT LEAST ONE INJECTION WELL AND AT LEAST ONE PRODUCTION WELL THE STEPS WHICH COMPRISE; PRODUCING OIL FROM SAID RESERVOIR BY PRIMARY PRODUCTION UNITL THE FREE-GAS SATURATION WITHIN SAID RESERVOIR IS WITHIN THE RANGE OF ABOUT 15 PERCENT TO ABOUT 30 PERCENT OF THE HYDROCARBON PORE VOLUME OF SAID RESERVOIR; INTRODUCING INTO SAID RESERVOIR THROUGH SAID INJECTION WELL A QUANTITY OF FLUID HYDROCARBON MATERIAL MISCIBLE WITH THE OIL REMAINING IN SAID RESERVOIR, SAID HYDROCARBON MATERIAL BEING INJECTED AT A PRESSURE SUFFICIENT TO ESTABLISH MISCIBILITY WITH SAID OIL;
Claim 2
Dependent Claim
99 words
IN A METHOD OF RECOVERING OIL FROM A SUBTERRANEAN RESERVOIR PROVIDED WITH AT LEAST ONE INJECTION WELL AND AT LEAST ONE PRODUCTION WELL THE STEPS WHICH COMPRISE; PRODUCING OIL FROM SAID RESERVOIR BY PRIMARY PRODUCTION UNITL THE FREE-GAS SATURATION WITHIN SAID RESERVOIR IS WITHIN THE RANGE OF ABOUT 15 PERCENT TO ABOUT 30 PERCENT OF THE HYDROCARBON PORE VOLUME OF SAID RESERVOIR; INTRODUCING INTO SAID RESERVOIR THROUGH SAID INJECTION WELL A QUANTITY OF FLUID HYDROCARBON MATERIAL MISCIBLE WITH THE OIL REMAINING IN SAID RESERVOIR, SAID HYDROCARBON MATERIAL BEING INJECTED AT A PRESSURE SUFFICIENT TO ESTABLISH MISCIBILITY WITH SAID OIL;
References Cited (Backward Citations)
GB696524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |