US3047066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating geological formation to improve flow of oil
Assignee: Pure Oil Co
•
Filing: 1959-05-01
•
Granted: 1962-07-31
•
Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 Neal J Mosely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:39
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS FOR IMPROVING THE PENETRABILITY CHARACTERISTICS OF A SUBTERRANEAN GEOLOGICAL FORMATION TRAVERSED BY A WELL BORE, WHICH COMPRISES INTRODUCING INTO SAID BORE AN OIL SOLUTION OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES HAVING C1-C18 HYDROCARBYL SUBSTITUENTS, INTRODUCING INTO SAID BORE SUFFICIENT CARBON DIOXIDE TO REACT WITH THE AMINE TO FORM A SUBSTITUTED CARBAMATE ACCORDING TO THE EQUATION:
Claim 2
Dependent Claim
64 words
A PROCESS FOR IMPROVING THE PENETRABILITY CHARACTERISTICS OF A SUBTERRANEAN GEOLOGICAL FORMATION TRAVERSED BY A WELL BORE, WHICH COMPRISES INTRODUCING INTO SAID BORE AN OIL SOLUTION OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES HAVING C1-C18 HYDROCARBYL SUBSTITUENTS, INTRODUCING INTO SAID BORE SUFFICIENT CARBON DIOXIDE TO REACT WITH THE AMINE TO FORM A SUBSTITUTED CARBAMATE ACCORDING TO THE EQUATION:
References Cited (Backward Citations)
US2574510A
Cited
US2728395A
Cited
US2774740A
Cited
US2804145A
Cited
US2787325A
Cited
US2805721A
Cited
US2954825A
Cited
US2957826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |