US3774682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for initiating in-situ combustion
Assignee: Texaco Inc
•
Filing: 1972-03-15
•
Granted: 1973-11-27
•
Expires: 1992-03-15
Abstract
Abstract A method of initiating in-situ combustion in a subterranean hydrocarbon-bearing formation by igniting a hydrocarbon fuel-air mixture in an input well by contacting the air with a pyrophoric material to give a spontaneous combustion reaction which thereafter initiates combustion of the hydrocarbon fuel and air.
Inventors
- 👤 I Bousaid
- 👤 M Fontaine
- 👤 R Korstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:36
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
16 words
The metHod of claim 1 wherein said hydride of silicon is silane, disilane and mixtures thereof.
Claim 2
Dependent Claim
21 words
The method of claim 1 wherein said hydride of silicon is admixed with hydrogen gas prior to introduction into said wellbore.
Claim 3
Dependent Claim
28 words
The method of claim 3 wherein said hydride of silicon is admixed with said hydrogen gas in at least 15 volume percent of total hydride and hydrogen gas.
Claim 4
Dependent Claim
21 words
The method of claim 1 wherein said hydride of silicon is admixed with inert gas prior to introduction into said wellbore.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein said hydride of silicon is introduced into said wellbore by displacement with natural gas, methane and mixtures thereof.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein said hydrocarbon fuel is selected from the group consisting of methane and natural gas.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein said free oxygen-containing gas is air.
Claim 8
Independent Claim
80 words
A method for initiating combustion of hydrocarbon fuel in a wellbore penetrating a subterranean hydrocarbon-bearing formation which comprises separately introducing into said wellbore in the vicinity of said hydrocarbon-bearing formation a hydrocarbon fuel, a free oxygen-containing gas and a hydride of silicon capable of reacting spontaneously with said oxygen-containing gas into admixture with one another, effecting spontaneous reaction of said oxygen-containing gas and said hydride of silicon and thereby initiating combustion of said hydrocarbon fuel in said free oxygen-containing gas.
Claim 9
Dependent Claim
21 words
The method of claim 9 wherein said hydride of silicon is admixed with hydrogen gas prior to introduction into said wellbore.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |