US2642943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil recovery process
Assignee: SOGC Inc
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Filing: 1949-05-20
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Granted: 1953-06-23
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Expires: 1969-05-20
Abstract
No abstract record available.
Inventors
- 👤 Robert L Smith
- 👤 Kenneth M Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
THE METHOD OF RECOVERING GAS AND OIL FROM OIL-BEARING FORMATIONS PENETRATED BY AT LEAST ONE INPUT WELL AND AT LEAST ONE ADJACENT OUTPUT WELL WHICH COMPRISES ESTABLISHING A ZONE OF HIGH TEMPERATURE AT ABOUT 700* TO 2500* F. WITHIN THE FORMATION SURROUNDING THE INPUT WELL BY MEANS OF HOT GAS FLOW, MOVING THE HIGH TEMPERATURE ZONE AS A WAVE FRONT BY MEANS OF COLD GAS FLOW OUTWARDLY FROM THE INPUT WELL AND THROUGH THE FORMATION IN A RELATIVE HORIZONTAL DIRECTION, REVIVIFYING THE HIGH TEMPERATURE WAVE FRONT BY ESTABLISHING A COMBUSTION WAVE FRONT BY INTRODUCTION OF FREE OXYGEN IN AN AVERAGE AMOUNT APPROXIMATING 1.33 TO 6.0% INTO THE FORMATION AND CONTROLLING THE RATE OF MOVEMENT OF THE COMBUSTION WAVE FRONT RELATIVE TO THE RATE OF MOVEMENT OF THE HIGH TEMPERATURE WAVE FRONT IN A MANNER OBTAINING APPROXIMATE COINCIDENCE BETWEEN THE COMBUSTION WAVE FRONT AND THE HIGH TEMPERATURE WAVE FRONT REGULATING THE MASS VELOCITY OF FREE OXYGEN INTRODUCED TO THE FORMATION DURING ANY PERIOD OF OPERATION AND THUS CONTROLLING THE RATE OF COMBUSTION IN THE FRONT BY WHICH ITS RATE OF MOVEMENT IS DETERMINED, WHILE RECOVERING GAS AND OIL FROM THE OUTLET WELL.
Claim 2
Independent Claim
191 words
THE METHOD OF RECOVERING GAS AND OIL FROM OIL-BEARING FORMATIONS PENETRATED BY AT LEAST ONE INPUT WELL AND AT LEAST ONE ADJACENT OUTPUT WELL WHICH COMPRISES ESTABLISHING A ZONE OF HIGH TEMPERATURE AT ABOUT 700* TO 2500* F. WITHIN THE FORMATION SURROUNDING THE INPUT WELL BY MEANS OF HOT GAS FLOW, MOVING THE HIGH TEMPERATURE ZONE AS A WAVE FRONT BY MEANS OF COLD GAS FLOW OUTWARDLY FROM THE INPUT WELL AND THROUGH THE FORMATION IN A RELATIVE HORIZONTAL DIRECTION, REVIVIFYING THE HIGH TEMPERATURE WAVE FRONT BY ESTABLISHING A COMBUSTION WAVE FRONT BY INTRODUCTION OF FREE OXYGEN IN AN AVERAGE AMOUNT APPROXIMATING 1.33 TO 6.0% INTO THE FORMATION AND CONTROLLING THE RATE OF MOVEMENT OF THE COMBUSTION WAVE FRONT RELATIVE TO THE RATE OF MOVEMENT OF THE HIGH TEMPERATURE WAVE FRONT IN A MANNER OBTAINING APPROXIMATE COINCIDENCE BETWEEN THE COMBUSTION WAVE FRONT AND THE HIGH TEMPERATURE WAVE FRONT REGULATING THE MASS VELOCITY OF FREE OXYGEN INTRODUCED TO THE FORMATION DURING ANY PERIOD OF OPERATION AND THUS CONTROLLING THE RATE OF COMBUSTION IN THE FRONT BY WHICH ITS RATE OF MOVEMENT IS DETERMINED, WHILE RECOVERING GAS AND OIL FROM THE OUTLET WELL.
References Cited (Backward Citations)
US2382471A
Cited
US2390770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |