US2877847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion in well with steel liner
Assignee: SOGC Inc
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Filing: 1955-09-26
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Granted: 1959-03-17
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Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Pelzer Harry Louis
- 👤 Raymond M Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:44
CPC Classifications
E; E21; E21B; E21B36/00; E21B36/001; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
IN A METHOD FOR THE RECOVERY OF OIL AND GAS FROM AN OIL BEARING UNDERGROUND FORMATION HAVING A STELL LINER ADJACENT A STRATA IN WHICH A HEAT WAVE IS TO BE PROPAGATED WHEREIN AN INPUT WELL PROVIDES COMMUNICATION WITH THE BEARING FORMATION AND RECOVERY OF PRODUCTS IS EFFECTED BY ESTABLISHING AND PROPAGATING A HEAT WAVE WITHIN THE FORMATION, THE METHOD OF ESTABLISHING A HEAT WAVE WHICH COMPRISES ESTABLISHING A HEATED ZONE OF STRATA ABOUT SAID INPUT WELL BY PASSING SUBSTANTIALLY INERT GASES HEATED TO AN ELEVATED TEMPERATURE OF AT LEAST ABOUT 650*F. BUT NOT IN EXCESS OF ABOUT 900*F. FROM SAID INPUT WELL BORE THROUGH SAID LINER AND INTO SAID FORMATION, THEN COOLING SAID INPUT WELL BORE AND A PORTION OF THE HEATED ZONE OF FORMATION IMMEDIATELY ADJACENT SAID INPUT WELL IN THE ABSENCE OF A SUBSTANTIAL AMOUNT OF FREE OXYGEN AND UNTIL THE TEMPERATURE OF SAID IMPUT WELL AND A PORTION OF THE IMMEDIATELY ADJACENT FORMATION IS BELOW ABOUT 650*F. AND THEN ESTABLISHING AND PROPAGTING A HEAT WAVE WITHIN SAID FORMATION BY PASSING AN OXYGEN-CONTAINING COMBUSTION GAS INTO SAID INPUT WELL AND INTO SAID FORMATION TO THE HEATED FRONT OF SAID FORMATION AND BURNING COMBUSTIBLES THERE.
Claim 2
Dependent Claim
197 words
IN A METHOD FOR THE RECOVERY OF OIL AND GAS FROM AN OIL BEARING UNDERGROUND FORMATION HAVING A STELL LINER ADJACENT A STRATA IN WHICH A HEAT WAVE IS TO BE PROPAGATED WHEREIN AN INPUT WELL PROVIDES COMMUNICATION WITH THE BEARING FORMATION AND RECOVERY OF PRODUCTS IS EFFECTED BY ESTABLISHING AND PROPAGATING A HEAT WAVE WITHIN THE FORMATION, THE METHOD OF ESTABLISHING A HEAT WAVE WHICH COMPRISES ESTABLISHING A HEATED ZONE OF STRATA ABOUT SAID INPUT WELL BY PASSING SUBSTANTIALLY INERT GASES HEATED TO AN ELEVATED TEMPERATURE OF AT LEAST ABOUT 650*F. BUT NOT IN EXCESS OF ABOUT 900*F. FROM SAID INPUT WELL BORE THROUGH SAID LINER AND INTO SAID FORMATION, THEN COOLING SAID INPUT WELL BORE AND A PORTION OF THE HEATED ZONE OF FORMATION IMMEDIATELY ADJACENT SAID INPUT WELL IN THE ABSENCE OF A SUBSTANTIAL AMOUNT OF FREE OXYGEN AND UNTIL THE TEMPERATURE OF SAID IMPUT WELL AND A PORTION OF THE IMMEDIATELY ADJACENT FORMATION IS BELOW ABOUT 650*F. AND THEN ESTABLISHING AND PROPAGTING A HEAT WAVE WITHIN SAID FORMATION BY PASSING AN OXYGEN-CONTAINING COMBUSTION GAS INTO SAID INPUT WELL AND INTO SAID FORMATION TO THE HEATED FRONT OF SAID FORMATION AND BURNING COMBUSTIBLES 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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |