US2880803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Initiating in situ combustion in a stratum
Assignee: Phillips Petroleum Co
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Filing: 1958-01-16
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Granted: 1959-04-07
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Harry W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:03
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR INITATING IN SITU COMBUSTION IN A PERMEABLE CARBONACEOUS STRATUM WHICH COMPRISES PASSING A FUEL GAS THRU A SECTION OF SAID STRATUM INTO AN IGNITION BOREHOLE THEREIN; PASSING COMBUSTION-SUPPORTING, FREE OXYGEN-CONTAINING GAS THRU AN ADJACENT SECTION OF SAID STRATUM INTO SAID BOREHOLE WHEREBY OXYGEN AND FUEL GAS MIX ALONG AN INTERFACE OF SAID GASES AND IN SAID BOREHOLE; IGNITING THE MIXTURE OF GASES IN SAID BOREHOLE SO AS TO BURN SAID MIXTURE IN SAID BOREHOLE AND CAUSE SAME TO BURN WITHIN SAID STRATUM; AFTER A SUBSTANTIAL AREA OF SAID STRATUM IS HEATED TO AT LEAST THE IGNITION TEMPERA-
Claim 2
Dependent Claim
100 words
A PROCESS FOR INITATING IN SITU COMBUSTION IN A PERMEABLE CARBONACEOUS STRATUM WHICH COMPRISES PASSING A FUEL GAS THRU A SECTION OF SAID STRATUM INTO AN IGNITION BOREHOLE THEREIN; PASSING COMBUSTION-SUPPORTING, FREE OXYGEN-CONTAINING GAS THRU AN ADJACENT SECTION OF SAID STRATUM INTO SAID BOREHOLE WHEREBY OXYGEN AND FUEL GAS MIX ALONG AN INTERFACE OF SAID GASES AND IN SAID BOREHOLE; IGNITING THE MIXTURE OF GASES IN SAID BOREHOLE SO AS TO BURN SAID MIXTURE IN SAID BOREHOLE AND CAUSE SAME TO BURN WITHIN SAID STRATUM; AFTER A SUBSTANTIAL AREA OF SAID STRATUM IS HEATED TO AT LEAST THE IGNITION TEMPERA-
References Cited (Backward Citations)
US2642943A
Cited
US2718263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |