Process of cementing wells

Details Process of cementing wells Process of cementing wells

1972-09-20

1977-01-18

Purser, Ernest R.

Wells

Processes

With indicating, testing, measuring or locating

23230R, 106314, 259154, 166293, E21B 3313

Patent

active

040034313

ABSTRACT:
A method of cementing oil, gas or water wells and the like, wherein a solution, dispersion, suspension, or the like of a cement additive in water is prepared at a predetermined concentration of additive and is thereafter mixed with dry powdered cement to form a cement slurry, and a sample of the additive-water mixture is analyzed prior to its being mixed with the cement, to verify that the additive-water mixture contains the desired concentration of additive. The analysis of the additive-water mixture preferably is performed continuously on a sample of the mixture in a spectrophotometer, the output signal of which may be displayed on a meter or may be used to control the relative quantities of water and additive that go into the additive-water mixture.

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patent: 3256181 (1966-06-01), Zingg et al.
patent: 3379421 (1968-04-01), Putman
patent: 3565533 (1971-02-01), Garcia et al.
patent: 3615223 (1971-10-01), Burrqughs et al.
patent: 3638916 (1972-02-01), Ursic et al.
patent: 3721253 (1973-03-01), Remke

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