US3221809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of heating a subterranean reservoir containing hydrocarbon material
Assignee: ExxonMobil Oil Corp
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Filing: 1963-06-14
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Granted: 1965-12-07
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Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 Dean K Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A PROCEDURE FOR RECOVERING HYDROCARBONS FROM A SUBTERRANEAN FORMATION CONTAINING HYDROCARBON MATERIAL COMPRISING: PASSING AN OXIDIZING GAS FROM AN INPUT WELL MEANS TO OUTPUT WELL MEANS THROUGH SAID FORMATION IN A FIRST DIRECTION TO EFFECT AUTO-OXIDATION OF SAID HYDROCARBON MATERIAL ONLY UNTIL THE TEMPERATURE WITHIN THE FORMATION TRAVERSED BY THE OXIDIZING GAS PASSED FROM SAID INPUT WELL MEANS BEGINS TO APPROACH THE IGNITION TEMPERATURE OF THE HYDROCARBON MATERIAL, AND THEREAFTER PASSING AN OXIDIZING GAS FROM AN INPUT WELL MEANS TO OUTPUT WELL MEANS THROUGH SAID FORMATION TRAVERSED IN SAID FIRST PASSAGE OF OXIDIZING GAS IN A DIRECTION SUBSTANTIALLY OPPOSITE TO SAID FIRST DIRECTION TO EFFECT AUTO-OXIDATION OF SAID HYDROCARBON MATERIAL ONLY UNTIL THE TEMPERATURE WITHIN THE FORMATION TRAVERSED BY THE OXIDIZING GAS PASED FROM SAID LASTMENTIONED INPUT WELL MEANS BEGINS TO APPROACH THE IGNITION TEMPERATURE OF THE HYDROCARBON MATERIAL AND THEREBY HEAT SAID HYDROCARBON MATERIAL IN SAID FORMATION, AND THEREAFTER RECOVERING HEATED HYDROCARBONS FROM SAID FORMATION THROUGH AN OUTPUT WELL MEANS.
Claim 2
Dependent Claim
161 words
A PROCEDURE FOR RECOVERING HYDROCARBONS FROM A SUBTERRANEAN FORMATION CONTAINING HYDROCARBON MATERIAL COMPRISING: PASSING AN OXIDIZING GAS FROM AN INPUT WELL MEANS TO OUTPUT WELL MEANS THROUGH SAID FORMATION IN A FIRST DIRECTION TO EFFECT AUTO-OXIDATION OF SAID HYDROCARBON MATERIAL ONLY UNTIL THE TEMPERATURE WITHIN THE FORMATION TRAVERSED BY THE OXIDIZING GAS PASSED FROM SAID INPUT WELL MEANS BEGINS TO APPROACH THE IGNITION TEMPERATURE OF THE HYDROCARBON MATERIAL, AND THEREAFTER PASSING AN OXIDIZING GAS FROM AN INPUT WELL MEANS TO OUTPUT WELL MEANS THROUGH SAID FORMATION TRAVERSED IN SAID FIRST PASSAGE OF OXIDIZING GAS IN A DIRECTION SUBSTANTIALLY OPPOSITE TO SAID FIRST DIRECTION TO EFFECT AUTO-OXIDATION OF SAID HYDROCARBON MATERIAL ONLY UNTIL THE TEMPERATURE WITHIN THE FORMATION TRAVERSED BY THE OXIDIZING GAS PASED FROM SAID LASTMENTIONED INPUT WELL MEANS BEGINS TO APPROACH THE IGNITION TEMPERATURE OF THE HYDROCARBON MATERIAL AND THEREBY HEAT SAID HYDROCARBON MATERIAL IN SAID FORMATION, AND THEREAFTER RECOVERING HEATED HYDROCARBONS FROM SAID FORMATION THROUGH AN OUTPUT WELL MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |