Well treatment process

Details Well treatment process Well treatment process

1989-06-19

1990-09-18

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166297, 166300, 1663051, 252 8551, E21B 33138, E21B 4312

Patent

active

049571656

ABSTRACT:
Hydroxyacetic acid condensation product is used as a fluid loss material in a well completion or workover process in which a fluid comprising a hydrolyzable aqueous gel is used. The hydroxyacetic acid condensation product degrades at formation conditions to provide hydroxyacetic acid which breaks the aqueous gel, thereby restoring full formation permeability without the need for separate addition of gel breaker.

REFERENCES:
patent: 4083407 (1978-04-01), Griffin, Jr. et al.
patent: 4304300 (1981-12-01), Watson
patent: 4343363 (1982-08-01), Norton et al.
patent: 4470915 (1984-09-01), Conway
patent: 4541485 (1985-09-01), Block
patent: 4715967 (1987-12-01), Bellis et al.
patent: 4848467 (1989-07-01), Cantu et al.

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