US3127932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for inhibiting corrosion in oil wells
Assignee: California Research LLC
•
Filing: 1961-12-01
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Granted: 1964-04-07
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Expires: 1981-12-01
Abstract
No abstract record available.
Inventors
- 👤 Frederic W Schremp
- 👤 Joseph F Chittum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:39
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/187; Y; Y10; Y10S; Y10S166/00; Y10S166/902; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A CORROSION-INHIBITING COMPOSITION CONSISTING ESSENTIALLY OF A WATER-SOLUBLE FERROCYANIDE AND A WATER-SOLUBLE BORATE, SAID WATER-SOLUBLE FERROCYANIDE BEING PRESENT IN AN AMOUNT TO PRODUCE A CONCENTRATION OF FERROCYANIDE ION IN AQUEOUS SOLUTION OF 5 P.P.M. TO 140 P.P.M. AND SAID WATER-SOLUBLE BORATE BEING PRESENT IN AN AMOUNT TO PRODUCE A CONCENTRATION OF BORATE ION IN AQUEOUS SOLUTION OF 5 P.P.M. TO 140 P.P.M.
Claim 2
Dependent Claim
62 words
A CORROSION-INHIBITING COMPOSITION CONSISTING ESSENTIALLY OF A WATER-SOLUBLE FERROCYANIDE AND A WATER-SOLUBLE BORATE, SAID WATER-SOLUBLE FERROCYANIDE BEING PRESENT IN AN AMOUNT TO PRODUCE A CONCENTRATION OF FERROCYANIDE ION IN AQUEOUS SOLUTION OF 5 P.P.M. TO 140 P.P.M. AND SAID WATER-SOLUBLE BORATE BEING PRESENT IN AN AMOUNT TO PRODUCE A CONCENTRATION OF BORATE ION IN AQUEOUS SOLUTION OF 5 P.P.M. TO 140 P.P.M.
Claim 3
Independent Claim
56 words
A METHOD OF INHIBITING CORROSION OF FERROUS METAL SURFACES IN CONTACT WITH AN OIL FIELD BRINE IN AN OIL WELL WHICH COMPRISES DETERMINING THE PRESENCE AND CONCENTRATION OF ANY BORATE ION WHICH MAY BE IN SAID BRINE, ADDING TO SAID BRINE A WATER-SOLUBLE BORATE IN AN AMOUNT SUFFICIENT BASED UPON THE BORATE ION CONCENTRATION OS SAID
Claim 4
Independent Claim
56 words
A METHOD OF INHIBITING CORROSION OF FERROUS METAL SURFACES IN CONTACT WITH AN OIL FIELD BRINE IN AN OIL WELL WHICH COMPRISES DETERMINING THE PRESENCE AND CONCENTRATION OF ANY BORATE ION WHICH MAY BE IN SAID BRINE, ADDING TO SAID BRINE A WATER-SOLUBLE BORATE IN AN AMOUNT SUFFICIENT BASED UPON THE BORATE ION CONCENTRATION OS SAID
References Cited (Backward Citations)
USRE23740E
Cited
US1827223A
Cited
US1875982A
Cited
US1964808A
Cited
US2426317A
Cited
US2901437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |