US2801931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well cementing composition
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-04-06
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Granted: 1957-08-06
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Expires: 1974-04-06
Abstract
No abstract record available.
Inventors
- 👤 Bryan E Morgan
- 👤 George K Dumbauld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:08
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/28; C04B24/32; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A CEMENT COMPOSITION ADAPTED FOR USE IN WELL CEMENTING OPERATIONS HAVING A DENSITY IN THE RANGE FROM ABOUT 11 TO APPROXIMATELY 121/2LBS. PERF GALLON AND HAVING A TENSILE STRENGTH WHEN SET BELOW 300 LBS. PER SQ. IN. WHICH CONSISTS OF A PORTLAND CEMENT, A LIQUID HYDROCARBON SELECTED FROM THE CLASS CONSISSTING OF PURE HYDROCARBONS AND HYDROCARBON MIXTURES HAVING A VISCOSITY AT 100*F. LESS THAN 40 CENTIPOSISES IN AN AMOUNT IN THE RANGE BETWEEN 15CC. AND 60CC. PER 100 GRAMS OF THE DRY CEMENT, AN EMULSIFYING AGENT SELECTED FROM THE CLASS CONSISTING OF THE CALCIUM TOLERANT WATER SOLUBLE POLAR HYDROPYHLIC NONIONIC ESTER, ETHER-ALCOHOL, AND THE ETHER-ESTHER COMPOUNDS IN AN AMOUNT IN THE RANGE BETWEN 0.1% AND 1.0% BY WEIGHT BASED ON THE DRY CEMENT, AND WATER IN AN AMOUNT IN THE RANGE BETWEEN 50% AND 100% BY WEIGHT BASED ON THE DRY CEMENT SUFFIEIENT TO PROVIDE A PUMPABLE SLURRY.
Claim 2
Dependent Claim
148 words
A CEMENT COMPOSITION ADAPTED FOR USE IN WELL CEMENTING OPERATIONS HAVING A DENSITY IN THE RANGE FROM ABOUT 11 TO APPROXIMATELY 121/2LBS. PERF GALLON AND HAVING A TENSILE STRENGTH WHEN SET BELOW 300 LBS. PER SQ. IN. WHICH CONSISTS OF A PORTLAND CEMENT, A LIQUID HYDROCARBON SELECTED FROM THE CLASS CONSISSTING OF PURE HYDROCARBONS AND HYDROCARBON MIXTURES HAVING A VISCOSITY AT 100*F. LESS THAN 40 CENTIPOSISES IN AN AMOUNT IN THE RANGE BETWEEN 15CC. AND 60CC. PER 100 GRAMS OF THE DRY CEMENT, AN EMULSIFYING AGENT SELECTED FROM THE CLASS CONSISTING OF THE CALCIUM TOLERANT WATER SOLUBLE POLAR HYDROPYHLIC NONIONIC ESTER, ETHER-ALCOHOL, AND THE ETHER-ESTHER COMPOUNDS IN AN AMOUNT IN THE RANGE BETWEN 0.1% AND 1.0% BY WEIGHT BASED ON THE DRY CEMENT, AND WATER IN AN AMOUNT IN THE RANGE BETWEEN 50% AND 100% BY WEIGHT BASED ON THE DRY CEMENT SUFFIEIENT TO PROVIDE A PUMPABLE SLURRY.
References Cited (Backward Citations)
US2285302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |