US3053765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscous water waterflooding
Assignee: Jersey Production Research Co
•
Filing: 1959-05-01
•
Granted: 1962-09-11
•
Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 William J Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:35
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86; C09K8/88; C09K8/90; C09K8/905; Y; Y10; Y10S; Y10S507/00; Y10S507/92; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A METHOD OF RECOVERING OIL FROM A SUBTERRANEAN OIL RESERVOIR, THE STEP OF FLOODING THE RESERVOIR WITH WATER CONTAINING AN AMOUNT OF DEXTRAN IN SOLUTION SUFFICIENT TO INCREASE THE VISCOSITY OF THE WATER, SAID WATER FURTHER CONTAINING A QUANTITY OF PRESERVATIVE SUFFICIENT TO REDUCE THE TENDENCY OF THE DEXTRAN TO DEGRADE AT THE TEMPERATURE OF THE RESERVOIR.
Claim 2
Dependent Claim
58 words
IN A METHOD OF RECOVERING OIL FROM A SUBTERRANEAN OIL RESERVOIR, THE STEP OF FLOODING THE RESERVOIR WITH WATER CONTAINING AN AMOUNT OF DEXTRAN IN SOLUTION SUFFICIENT TO INCREASE THE VISCOSITY OF THE WATER, SAID WATER FURTHER CONTAINING A QUANTITY OF PRESERVATIVE SUFFICIENT TO REDUCE THE TENDENCY OF THE DEXTRAN TO DEGRADE AT THE TEMPERATURE OF THE RESERVOIR.
References Cited (Backward Citations)
US2364434A
Cited
US2341500A
Cited
US2360327A
Cited
US2602082A
Cited
US2731414A
Cited
US2868725A
Cited
US2771138A
Cited
US2908597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |