Patent US3135324A successfully refreshed from Google Patents.
US3135324A
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Prevention of ignition in air injection wells
Assignee: Phillips Petroleum Co
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Filing: 1959-12-07
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Granted: 1964-06-02
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 John W Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:42
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
90 words
IN A PROCESS FOR PRESSURIZING A STRATUM WITH AN OXYGEN-CONTAINING, COMBUSTION-SUPPORTING GAS PRIOR TO ESTABLISHING A COMBUSTION ZONE THEREIN BY INJECTING SAID GAS THRU AN INJECTION WELL AND PRODUCING FLUID THRU AT LEAST ONE OFFSET WELL WHEREIN SPONTANEOUS COMBUSTION TENDS TO OCCUR ADJACENT SAID INJECTION WELL, THE METHOD OF PREVENTING SAID SPONTANEOUS COMBUSTION WHICH COMPRISES INJECTING INTO SAID GAS PASSING THRU SAID INJECTION WELL AND THE SURROUNDING STRATUM A FINE DISPERSION OF WATER IN ADEQUATE CONCENTRATION TO MAINTAIN THE TEMPERATURE OF SAID STRATUM AROUND SAID INJECTION WELL BELOW IGNITION TEMPERATURE.
Claim 2
Dependent Claim
90 words
IN A PROCESS FOR PRESSURIZING A STRATUM WITH AN OXYGEN-CONTAINING, COMBUSTION-SUPPORTING GAS PRIOR TO ESTABLISHING A COMBUSTION ZONE THEREIN BY INJECTING SAID GAS THRU AN INJECTION WELL AND PRODUCING FLUID THRU AT LEAST ONE OFFSET WELL WHEREIN SPONTANEOUS COMBUSTION TENDS TO OCCUR ADJACENT SAID INJECTION WELL, THE METHOD OF PREVENTING SAID SPONTANEOUS COMBUSTION WHICH COMPRISES INJECTING INTO SAID GAS PASSING THRU SAID INJECTION WELL AND THE SURROUNDING STRATUM A FINE DISPERSION OF WATER IN ADEQUATE CONCENTRATION TO MAINTAIN THE TEMPERATURE OF SAID STRATUM AROUND SAID INJECTION WELL BELOW IGNITION TEMPERATURE.
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |