US2614980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for inhibiting corrosion in oil wells
Assignee: Standard Oil Development Co
•
Filing: 1950-04-03
•
Granted: 1952-10-21
•
Expires: 1970-04-03
Abstract
No abstract record available.
Inventors
- 👤 Melba L Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/932; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A METHOD FOR REDUCING THE CORROSIVENESS TO CORRODIBLE FERROUS METAL OF A CORROSIVE PETROLIFEROUS WELL FLUID INCLUDING MOISTURE AND HYDROGEN SULFIDE WHICH COMPRISES INTRODUCING INTO SAID FLUID A CORROSION INHIBITING AMOUNT OF THE REACTION PRODUCT OF A FATTY MATERIAL SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS HAVING NO LESS THAN 12 AND NO MORE THAN 26 CARBON ATOMS PER MOLECULE AND A FATTY OIL CONTAINING FATTY ACID RADICALS HAVING NO LESS THAN 12 AND MORE THAN 26 CARBON ATOMS WITH AN AMINE SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALKANOL AMINES HAVING A TOTAL OF NO LESS THAN 6 AND NO MORE THAN 18 CARBON ATOMS PER MOLECULE, THE REACTION PRODUCT BEING FORMED AT A TEMPERATURE IN THE RANGE OF 300* TO 550* F. AND IN THE PRESENCE OF AN ALKALINE REACTING CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDE AND ALKALI METAL CARBONATE, THE WEIGHT OF RATIO OF FATTY MATERIAL TO AMINE BEING IN THE RANGE OF 0.5:1.0 TO ABOUT 5.0:1.0.
Claim 2
Independent Claim
166 words
A METHOD FOR REDUCING THE CORROSIVENESS TO CORRODIBLE FERROUS METAL OF A CORROSIVE PETROLIFEROUS WELL FLUID INCLUDING MOISTURE AND HYDROGEN SULFIDE WHICH COMPRISES INTRODUCING INTO SAID FLUID A CORROSION INHIBITING AMOUNT OF THE REACTION PRODUCT OF A FATTY MATERIAL SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS HAVING NO LESS THAN 12 AND NO MORE THAN 26 CARBON ATOMS PER MOLECULE AND A FATTY OIL CONTAINING FATTY ACID RADICALS HAVING NO LESS THAN 12 AND MORE THAN 26 CARBON ATOMS WITH AN AMINE SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALKANOL AMINES HAVING A TOTAL OF NO LESS THAN 6 AND NO MORE THAN 18 CARBON ATOMS PER MOLECULE, THE REACTION PRODUCT BEING FORMED AT A TEMPERATURE IN THE RANGE OF 300* TO 550* F. AND IN THE PRESENCE OF AN ALKALINE REACTING CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDE AND ALKALI METAL CARBONATE, THE WEIGHT OF RATIO OF FATTY MATERIAL TO AMINE BEING IN THE RANGE OF 0.5:1.0 TO ABOUT 5.0:1.0.
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) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |