Method of using a lignosulfonate/carbohydrate system as a sacrif

Details Method of using a lignosulfonate/carbohydrate system as a sacrif Method of using a lignosulfonate/carbohydrate system as a sacrif

1985-03-04

1986-12-09

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166275, 252 8554, E21B 4322

Patent

active

046274944

ABSTRACT:
The disclosed sacrificial agent invention is a method of injecting a solution containing about 0.1% to about 10% by weight of a mixture of at least two sacrificial agents, wherein one sacrificial agent is a lignosulfonate and the second sacrificial agent is a carbohydrate, more specifically, a starch or cellulose derivative. The starch or cellulose derivative suitable for the second sacrificial agent can be found in the group comprising alkoxylated starch, esterified starch, oxidized starch, phosphated starch, alkoxylated cellulose, carboxyalkyl cellulose, carboxyalkylalkoxylated cellulose, alkylalkoxylated cellulose, cellulose sulfates and cellulose acetate sulfates.

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