US3096820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superior water-flooding process
Assignee: Pure Oil Co
•
Filing: 1959-11-16
•
Granted: 1963-07-09
•
Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 George G Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:39
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN THE RECOVERY OF THE PETROLEUM OIL FROM THE SUBTERRANEAN FORMATION BY THE INJECTION OF FLOODWATER THROUGGH AN INPUT WELL AND INTO SAID FORMATION AND THE PRODUCTION OF OIL FROM SAID FORMATION THROUGH AN OUTPUT WELL, THE IMPROVEMENT COMPRISING INCORPORATING IN AT LEAST A PORTION OF SAID FLOODWATER CONDENSATION PRODUCTS OF FATTY ACIDS AND DIETHANOLAMINE, WHEREIN THE FATTY ACIDS CONTAIN 8 TO 18 CARBON ATOMS, AND INCORPORATING IN AT LEAST A PORTION OF SAID FLOODWATER AN ALKARYL POLYETHER ALCOHOL OF THE FORMULA
Claim 2
Dependent Claim
82 words
IN THE RECOVERY OF THE PETROLEUM OIL FROM THE SUBTERRANEAN FORMATION BY THE INJECTION OF FLOODWATER THROUGGH AN INPUT WELL AND INTO SAID FORMATION AND THE PRODUCTION OF OIL FROM SAID FORMATION THROUGH AN OUTPUT WELL, THE IMPROVEMENT COMPRISING INCORPORATING IN AT LEAST A PORTION OF SAID FLOODWATER CONDENSATION PRODUCTS OF FATTY ACIDS AND DIETHANOLAMINE, WHEREIN THE FATTY ACIDS CONTAIN 8 TO 18 CARBON ATOMS, AND INCORPORATING IN AT LEAST A PORTION OF SAID FLOODWATER AN ALKARYL POLYETHER ALCOHOL OF THE FORMULA
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |