US3044546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unconsolidated sands by in situ combustion
Assignee: Phillips Petroleum Co
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Filing: 1959-05-25
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Granted: 1962-07-17
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Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 Henry O Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:55
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A PROCESS FOR PRODUCTING HYDROCARBONS FROM A UNCONSOLIDATED SAND CONTAINING PRODUCIBLE HYDROCARBONS WHICH COMPRISES ESTABLISHING A COMBUSTION ZONE IN SAID SAND AROUND A PRODUCTION WELL AT ONE OF THE UPPERMOST AND LOWERMOST LEVELS THEREIN BY HEATING SAID SAND TO IGNITION TEMPERATURE AT THE SELECTED LEVEL AND CONTACTING SAME WITH COMBUSTION-SUPPORTING GAS; INJECTING COMBUSTION-SUPPORTING GAS BY WAY OF SAID PRODUCTION WELL THRU SAID SAND ALONG SAID WELL FROM THE OTHER LEVEL SO AS TO FEED SAID COMBUSTION ZONE AND CAUSE SAME TO MOVE THRU AN ANNULUS OF SAND TO SAID OTHER LEVEL AND VENTING COMBUSTION PRODUCTS THRU SAID PRODUCTION WELL, THERE-
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |