US2619181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low water-loss cement slurry
Assignee: Phillips Petroleum Co
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Filing: 1949-07-11
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Granted: 1952-11-25
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Expires: 1969-07-11
Abstract
No abstract record available.
Inventors
- 👤 Peggy J Lea
- 👤 Henry B Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:22
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
THE PROCESS OF CEMENTING A WELL WHICH EXTENDS INTO A POROUS FORMATION WHICH COMPRISES PLACING A HYDRAULIC CEMENT AQUEOUS SLURRY HAVING A REDUCED WATER LOSS ADJACENT TO SAID POROUS FORMATION BY ADMIXING WITH HYDRAULIC CEMENT FROM 0.1 PER CENT TO 3 PER CENT BY WEIGHT OF THE DRY CEMENT OF INULIN, INTERACTING THEREWITH SUFFICIENT WATER TO PRODUCE A FLUID SLURRY AND INTRODUCING SAID SLURRY INTO SAID WELL INTO CONTACT WITH SAID POROUS FORMATION.
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) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |