US2871941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In situ combustion within a subsurface formation containing petroleum hydrocarbons
Assignee: Texaco Inc
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Filing: 1956-11-29
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Granted: 1959-02-03
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Expires: 1976-11-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Allen
- 👤 Robert E Kunetka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:20
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF INITIATING OR MAINTAINING IN SITU COMBUSTION IN A SUBSURFACE FORMATION CONTAINING IN PLACE HYDROCARBONS WHICH COMPRISES INTRODUCING INTO SAID FORMATION A COMPOUND WHICH UNDERGOES THERMAL DECOMPOSITION TO YEILD AN OXIDING AGENT, SUBJECTING THAT PORTION OF THE FORMATION INTO WHICH SAID COMPOUND IS INTRODUCED TO A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT THERMAL DECOMPOSITION OF SAID COMPOUND THEREIN TO YEILD SAID OXIDIZING AGENT AND TO CAUSE SAID OXIDIZING AGENT TO OXIDIZE THE IN PLACE HYDROCARBONS WITHIN SAID FORMATION TO EFFECT IN SITU COMBUSTION THEREIN.
Claim 2
Independent Claim
85 words
A METHOD OF INITIATING OR MAINTAINING IN SITU COMBUSTION IN A SUBSURFACE FORMATION CONTAINING IN PLACE HYDROCARBONS WHICH COMPRISES INTRODUCING INTO SAID FORMATION A COMPOUND WHICH UNDERGOES THERMAL DECOMPOSITION TO YEILD AN OXIDING AGENT, SUBJECTING THAT PORTION OF THE FORMATION INTO WHICH SAID COMPOUND IS INTRODUCED TO A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT THERMAL DECOMPOSITION OF SAID COMPOUND THEREIN TO YEILD SAID OXIDIZING AGENT AND TO CAUSE SAID OXIDIZING AGENT TO OXIDIZE THE IN PLACE HYDROCARBONS WITHIN SAID FORMATION TO EFFECT IN SITU COMBUSTION THEREIN.
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) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |