Patent US3014528A successfully refreshed from Google Patents.
US3014528A
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Method of packing off the annulas between the casing and tubing in a well with a packer fluid
Assignee: Phillips Petroleum Co
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Filing: 1958-11-03
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Granted: 1961-12-26
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Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 James R Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:31
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/42; Y; Y10; Y10S; Y10S166/00; Y10S166/902; Y10S507/00; Y10S507/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN A WELL COMPRISING A CASING AND A TUBING ANNULARLY DISPOSED WITHIN SAID CASING, A METHOD WHICH COMPRISES PACKING OFF THE ANNULUS BETWEEN SAID CASING AND TUBING WITH A PACKER FLUID CONSISTING ESSENTIALLY OF A SOLIDS-FREE AQUEOUS SOLUTION OF A WATER SOLUBLE ALKALI METAL SILICATE, SAID SOLUTION HAVING A DENSITY OF AT LEAST 9 POUNDS PER GALLON.
Claim 2
Dependent Claim
57 words
IN A WELL COMPRISING A CASING AND A TUBING ANNULARLY DISPOSED WITHIN SAID CASING, A METHOD WHICH COMPRISES PACKING OFF THE ANNULUS BETWEEN SAID CASING AND TUBING WITH A PACKER FLUID CONSISTING ESSENTIALLY OF A SOLIDS-FREE AQUEOUS SOLUTION OF A WATER SOLUBLE ALKALI METAL SILICATE, SAID SOLUTION HAVING A DENSITY OF AT LEAST 9 POUNDS PER GALLON.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |