US3138203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of underground burning
Assignee: Jersey Production Research Co
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Filing: 1961-03-06
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Granted: 1964-06-23
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Malcolm A Weiss
- 👤 Edward S Cohen
- 👤 Jr George G Binder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:11
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/247
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
IN A METHOD OF RECOVERING OIL FROM AN UNDERGROUND OIL-BEARING STRATUM PENETRATED BY A GAS INPUT WELL AND A SPACED OIL OUTPUT WELL, AND WHEREIN A COMBUSTION FRONT IS PROPAGATED BETWEEN SAID WELLS BY THE INJECTION OF AN OXYGEN-CONTAINING GAS THROUGH SAID INPUT WELL, THE IMPROVEMENT WHICH COMPRISES LIMITING FLUID COMMUNICATION BETWEEN SAID INPUT WELL AND SAID STRATUM TO THE LOWER BOUNDARY PORTION OF SAID STRATUM, INJECTING OXYGEN-CONTAINING GAS THROUGH SAID INPUT WELL SELECTIVELY INTO THE BOTTOM OF SAID STRATUM, THEREBY PROPAGATING SAID COMBUSTION FRONT PREFERENTIALLY ALONG THE BOTTOM OF SAID STRATUM BETWEEN SAID INPUT AND OUTPUT WELLS, LOGGING THE TEMPERATURE WITHIN SAID OUTPUT WELL, REGULATING THE QUANTITY OF OXYGEN INJECTED WITHIN SAID STRATUM IN ACCORDANCE WITH SAID TEMPERATURE LOG TO MAINTAIN THE TEMPERATURE WITHIN THE OUTPUT WELL AT A VALUE NOT GREATER THAN ABOUT 400*F., AND WITHDRAWING OIL FROM SAID OUTPUT WELL.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |