US3197316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cementing a well
Assignee: Gulf Oil Corp
•
Filing: 1962-08-16
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Granted: 1965-07-27
•
Expires: 1982-08-16
Abstract
No abstract record available.
Inventors
- 👤 Horace J Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:53
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF CEMENTING A WELL HAVING A BOTTOM HOLE TEMPERATURE EXCEEDING 170*F. COMPRISING PUMPING A PORTLAND CEMENT SLURRY CONTAINING PORTLAND CEMENT, WATER IN A CONCENTRATION IN THE RANGE OF 35 TO 55 PERCENT BY WEIGHT OF THE PORTLAND CEMENT, FORMALDEHYDE IN A CONCENTRATION IN THE RANGE OF 0.2 TO 3 PERCENT BY WEIGHT OF THE PORTLAND CEMENT, AND CARBOXYMETHYL HYDROXYETHYL CELLULOSE IN A CONCENTRATION IN THE RANGE OF ABOUT 0.1 TO 0.3 PERCENT BY WEIGHT OF THE CEMENT DOWN THE WELL TO THE ZONE OF THE WELL TO BE CEMENTED, AND MAINTAINING THE CEMENT SLURRY IN PLACE UNTIL THE CEMENT SETS.
Claim 2
Independent Claim
102 words
A METHOD OF CEMENTING A WELL HAVING A BOTTOM HOLE TEMPERATURE EXCEEDING 170*F. COMPRISING PUMPING A PORTLAND CEMENT SLURRY CONTAINING PORTLAND CEMENT, WATER IN A CONCENTRATION IN THE RANGE OF 35 TO 55 PERCENT BY WEIGHT OF THE PORTLAND CEMENT, FORMALDEHYDE IN A CONCENTRATION IN THE RANGE OF 0.2 TO 3 PERCENT BY WEIGHT OF THE PORTLAND CEMENT, AND CARBOXYMETHYL HYDROXYETHYL CELLULOSE IN A CONCENTRATION IN THE RANGE OF ABOUT 0.1 TO 0.3 PERCENT BY WEIGHT OF THE CEMENT DOWN THE WELL TO THE ZONE OF THE WELL TO BE CEMENTED, AND MAINTAINING THE CEMENT SLURRY IN PLACE UNTIL THE CEMENT SETS.
References Cited (Backward Citations)
US2880096A
Cited
US2889228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |