Patent US3130781A successfully refreshed from Google Patents.
US3130781A
Expired / Lapsed
US
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Recovery of hydrocarbon material by in-situ combustion
Assignee: ExxonMobil Oil Corp
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Filing: 1959-06-10
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Granted: 1964-04-28
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Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Robert L Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:42
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A PROCESS FOR THE RECOVERY OF HYDROCARBON MATERIAL FROM A SUBTERRANEAN FORMATION CONTAINING HYDRO-ECARBON MATERIAL AND HAVING AN INPUT WELL LEADING THERETO AND AN OUTPUT MEANS LEADING THEREFROM INCLUDING AT LEAST ONE OUTPUT WELL WHEREIN COMBUSTION OF HYDROCARBON MATERIAL WITHIN SAID FORMATION IS INITIATED AND OXIDIZING GAS IS INJECTED INTO SAID SUBTERRANEAN FORMATION THROUGH SAID INPUT WELL AND AS A RESULT THEREOF A COMBUSTION FRONT MIGRATES THROUGH SAID SUBTERRANEAN FORMATION FROM SAID INPUT WELL IN THE DIRECTION OF SAID OUTPUT MEANS, THE HEAT OF WHICH COMBUSTION FRONT DISPLACES HYDROCARBON MATERIAL FROM SAID FORMATION AND LEAVES A CARBONACEOUS DEPOSIT WHICH IS THE FUEL CONSUMED BY THE COMBUSTION FRONT AND SAID HYDROCARBON MATERIAL IS PRODUCIBLE FROM SAID OUTPUT MEANS, THE STEPS COMPRISING INJECTING OXIDIZING GAS INTO SAID FORMATION AT A RATE AT LEAST AS GREAT AS THAT GIVEN BY THE EXPRESSION:
Claim 2
Dependent Claim
140 words
IN A PROCESS FOR THE RECOVERY OF HYDROCARBON MATERIAL FROM A SUBTERRANEAN FORMATION CONTAINING HYDRO-ECARBON MATERIAL AND HAVING AN INPUT WELL LEADING THERETO AND AN OUTPUT MEANS LEADING THEREFROM INCLUDING AT LEAST ONE OUTPUT WELL WHEREIN COMBUSTION OF HYDROCARBON MATERIAL WITHIN SAID FORMATION IS INITIATED AND OXIDIZING GAS IS INJECTED INTO SAID SUBTERRANEAN FORMATION THROUGH SAID INPUT WELL AND AS A RESULT THEREOF A COMBUSTION FRONT MIGRATES THROUGH SAID SUBTERRANEAN FORMATION FROM SAID INPUT WELL IN THE DIRECTION OF SAID OUTPUT MEANS, THE HEAT OF WHICH COMBUSTION FRONT DISPLACES HYDROCARBON MATERIAL FROM SAID FORMATION AND LEAVES A CARBONACEOUS DEPOSIT WHICH IS THE FUEL CONSUMED BY THE COMBUSTION FRONT AND SAID HYDROCARBON MATERIAL IS PRODUCIBLE FROM SAID OUTPUT MEANS, THE STEPS COMPRISING INJECTING OXIDIZING GAS INTO SAID FORMATION AT A RATE AT LEAST AS GREAT AS THAT GIVEN BY THE EXPRESSION:
References Cited (Backward Citations)
US2642943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |