Patent US3202214A successfully refreshed from Google Patents.
US3202214A
Expired / Lapsed
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Preparation and use of sodium silicate gels
Assignee: Halliburton Co
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Filing: 1960-04-18
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Granted: 1965-08-24
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Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Homer C Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:03
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/04; C04B28/00; C04B28/24; C04B28/26; C09; C09K; C09K17/00; C09K17/40; C09K17/42; C09K17/46; C09K8/00; C09K8/42; C09K8/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A WELL TREATING METHOD, THE STEP OF INTRODUCING INTO THE WELL A GEL-FORMING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SODIUM SILICATE SOLUTION AND A GELLING AGENT THEREFOR, SAID GELLING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF (1) ESTERS AND LOCATONES CAPABLE OF UNDERGOING HYDROLYSIS INTHE PRESENCE OF THE SODIUM SILICATE SOLUTION, AND (2) REDUCING AGENT-OXIDIZING AGENT ADMIXTUES CAPABLE OF UNDERGOING AN OXIDATION-REDUCTION REACTION IN THE PRESSENCE OF THE SODIUM SILICATE SOLUTION.
Claim 2
Dependent Claim
73 words
IN A WELL TREATING METHOD, THE STEP OF INTRODUCING INTO THE WELL A GEL-FORMING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SODIUM SILICATE SOLUTION AND A GELLING AGENT THEREFOR, SAID GELLING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF (1) ESTERS AND LOCATONES CAPABLE OF UNDERGOING HYDROLYSIS INTHE PRESENCE OF THE SODIUM SILICATE SOLUTION, AND (2) REDUCING AGENT-OXIDIZING AGENT ADMIXTUES CAPABLE OF UNDERGOING AN OXIDATION-REDUCTION REACTION IN THE PRESSENCE OF THE SODIUM SILICATE SOLUTION.
References Cited (Backward Citations)
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Cited
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |