Patent US3351132A successfully refreshed from Google Patents.
US3351132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Post-primary thermal method of recovering oil from oil wells and the like
Assignee: Equity Oil Co
•
Filing: 1965-07-16
•
Granted: 1967-11-07
•
Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Dougan John Lynn
- 👤 Reynolds Fred Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:39
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD OF STIMULATING RECOVERY OF HYDROCARBON LIQUIDS FROM NATURAL OIL AND GAS RESERVOIRS UNDERGROUND, COMPRISING CIRCULATING HEATED GAS CONSISTING ESSENTIALLY OF NATURAL GAS UNDER PRESSURE, NOT EXCEEDING OVERBURDEN PRESSURE, THROUGH AT LEAST A PORTION OF SUCH A RESERVOIR FROM AN INJUNCTION WELL TO A RECOVERY WELL, THE TEMPERATURE OF SAID GAS BEING HIGH ENOUGH TO VAPORIZE HYDROCARBON LIQUIDS IN SAID RESERVOIR AND MAINTAIN SUCH VAPORIZED LIQUIDS ABOVE THE DEW POINT, AND ABOVE THE CRICONDENTHERM WHEN THE PRESSURE IS HIGH AS THE CRICONDENTHERM PRESSURE, SO SAID NATURAL GAS IS SUBSTANTIALLY COMPLETELY MISCIBLE WITH SAID VAPORIZED LIQUIDS.
Claim 2
Independent Claim
96 words
A METHOD OF STIMULATING RECOVERY OF HYDROCARBON LIQUIDS FROM NATURAL OIL AND GAS RESERVOIRS UNDERGROUND, COMPRISING CIRCULATING HEATED GAS CONSISTING ESSENTIALLY OF NATURAL GAS UNDER PRESSURE, NOT EXCEEDING OVERBURDEN PRESSURE, THROUGH AT LEAST A PORTION OF SUCH A RESERVOIR FROM AN INJUNCTION WELL TO A RECOVERY WELL, THE TEMPERATURE OF SAID GAS BEING HIGH ENOUGH TO VAPORIZE HYDROCARBON LIQUIDS IN SAID RESERVOIR AND MAINTAIN SUCH VAPORIZED LIQUIDS ABOVE THE DEW POINT, AND ABOVE THE CRICONDENTHERM WHEN THE PRESSURE IS HIGH AS THE CRICONDENTHERM PRESSURE, SO SAID NATURAL GAS IS SUBSTANTIALLY COMPLETELY MISCIBLE WITH SAID VAPORIZED LIQUIDS.
References Cited (Backward Citations)
US895612A
Cited
US2670802A
Cited
US2813583A
Cited
US3040809A
Cited
US2906337A
Cited
US3241611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |