US3129757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miscible fluid displacement method of producing an oil reservoir
Assignee: ExxonMobil Oil Corp
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Filing: 1960-05-13
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Granted: 1964-04-21
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Expires: 1980-05-13
Abstract
No abstract record available.
Inventors
- 👤 Lorld G Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:35
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
IN A METHOD OF PRODUCING OIL FROM A RESERVOIR PENETRATED BY AT LEAST ONE INJECTION WELL AND ONE PRODUCTION WELL THE STEPS WHICH COMPRISES HEATING A PORTION OF SAID OIL WITHIN SAID RESERVOIR AROUND SAID INJECTION WELL TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 500*F. TO ABOUT 720*F. AND FOR A TIME SUFFICIENT TO CRACK SAID OIL TO PROVIDE IN-SITU A MISCIBLE FLUID SLUG COMPRISING INTERMEDIATE LOW MOLECULAR WEIGHT HYDROCARBONS, INTRODUCING INTO SAID INJECTION WELL A DRIVING FLUID AT LEAST PARTIALLY MISCIBLE WITH SAID FLUID SLUG AND SUBSTANTIALLY FREE OF UNCOMBINED OXYGEN, DRIVING SAID MISCIBLE SLUG THROUGH SAID RESERVOIR TO SAID PRODUCTION WELL BY MEANS OF SAID DRIVING FLUID, AND PRODUCING FLUIDS FROM SAID PRODUCTION WELL INCLUDING SAID OIL AND SAID MISCIBLE SLUG.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |