Method and composition for cementing in a wellbore

Details Method and composition for cementing in a wellbore Method and composition for cementing in a wellbore

1989-10-23

1990-11-06

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

106665, 166292, E21B 3313

Patent

active

049678396

ABSTRACT:
A method of cementing in a wellbore penetrating subterranean formations characterized by mixing a predetermined quantity of Portland Cement containing at least 2 percent by weight of tricalcium aluminate; at least 2 percent by weight of gypsum; and 0.3-2.0 percent by weight of polyvinyl alcohol with enough water to form a pumpable slurry; pumping the slurry to a desired location in the wellbore and allowing the slurry to harden to a solid mass. Also disclosed is the composition. These methods and composition provide a cementing that has many advantages and beneficial results as delineated in the specification.

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Smith, Dwight K., Cementing, Society of Petroleum Engineers, Revised Edition 1987, pp. 7-10, 18, 36 and 40.

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