Reservoir scale inhibition

Details Reservoir scale inhibition Reservoir scale inhibition

1990-04-10

1991-03-26

Suchfield, George A.

Wells

Processes

Material placed in pores of formation to treat resident...

166300, 252 8552, E21B 4322, E21B 4325

Patent

active

050021265

ABSTRACT:
Scaling of a production well in a non-carbonate subterranean reservoir is inhibited by injecting into the reservoir the water soluble surfactant metal salt containing a terminal metal ion which is adsorbed on the surfaces of the reservoir and thereafter injecting an inhibitor selected from the group consisting of phosphonates and polymeric carboxylates. The inhibitor reacts with the metal, precipitating as the metal phosphonate or polymeric carboxylate which slowly dissolves in production water to inhibit the formation of scale.

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patent: 4602683 (1986-07-01), Meyers
patent: 4713184 (1987-12-01), Zaid
patent: 4860829 (1989-08-01), Carlberg et al.

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