US3618666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam injection of oil formations
Assignee: Baker Petrolite LLC
•
Filing: 1970-01-12
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Granted: 1971-11-09
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Expires: 1990-01-12
Abstract
Abstract In the process of stimulating the production of petroleum from underground formations by treating the formation with steam, including steam flooding and the ''''huff and puff'''' steam soak techniques, the improvement which is characterized by the use of organosilicones in conjunction with steam.
Inventors
- 👤 Alvin E Sayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:29
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/592; E; E21; E21B; E21B43/00; E21B43/16; E21B43/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
The process of claim 1 which the organosilicone is a methyl silicone.
References Cited (Backward Citations)
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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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |