US3638727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating a subterranean hydrocarbon-bearing formation
Assignee: Texaco Inc
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Filing: 1968-09-27
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Granted: 1972-02-01
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Expires: 1988-09-27
Abstract
Abstract Improved treatment of a subterranean hydrocarbon-bearing formation is effected by fracturing the formation using a fracturing mixture composed of a hydrocarbon liquid containing, in addition to a particulate propping agent, finely suspended charcoal, whereby additional fracturing is attained after a conventional fracturing procedure by in situ combustion of the fracturing mixture, and thereafter quenching the combustion with water.
Inventors
- 👤 Joseph C Allen
- 👤 Charles L Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:05
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/247; E21B43/25; E21B43/26; E21B43/2605
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
32 words
The method as defined in claim 1 wherein said combustible hydraulic fracturing mixture consists of a liquid petroleum fraction containing therein a particulate propping agent, comprising in admixture therewith finely suspended charcoal.
Claim 2
Dependent Claim
15 words
The method of claim 2 wherein said aqueous media is water, brine and mixtures thereof.
Claim 3
Dependent Claim
11 words
The method of claim 3 wherein said combustion-supporting gas is air.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |