US3024840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In situ combustion
Assignee: Texaco Inc
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Filing: 1958-06-16
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Granted: 1962-03-13
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Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:00
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
A METHOD OF DISPLACING FLUID PETROLEUM HYDROCARBONS FROM A SUBSURFACE FORMATION CONTAINING THE SAME WHICH COMPRISES INTRODUCING INTO SAID FORMATION AN AQUEOUS ADMIXTURE OF AN ORGANIC COMPOUND WHICH THERMALLY DECOMPOSES TO YIELD A SOLID CARBONACEOUS RESIDUE, CONTINUING THE INJECTION OF SAID AQUEOUS ADMIXTURE TO DISPLACE AT LEAST A PORTION OF SAID FLUID PETROLEUM HYDROCARBONS FROM SAID FORMATION TOWARD A PRODUCING WELL THEREIN FROM WHICH THE RESULTING DISPLACED HYDROCARBONS ARE PRODUCED, SUBJECTING THE THUS-TREATED FORMATION, NOW CONTAINING SAID AQUEOUS ADMIXTURE THEREIN, TO A TEMPERATURE SUFFICIENT TO EFFECT THERMAL DECOMPOSITION OF SAID ORGANIC COMPOUND THEREIN TO YIELD A SOLID CARBONACEOUS RESIDUE, PROVIDING A CONBUSTION-SUPPORTING GAS TO SAID THRUS-TREATED FORMATION AND INITIATING IN SITU COMBUSTION OF THE CARBONACEOUS RESIDUE TO DISPLACE ADDITIONAL FLUID PETROLEUM HYDROCARBONS FROM SAID FORMATION TOWARD SAID PRODUCING WELL.
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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |