Use of esters of sulfonic acids as anti-sludge agents during the

Compositions – Leather or fur treating

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252353, E21B 4327

Patent

active

044420145

ABSTRACT:
An anti-sludge agent useful for acid stimulated hydrocarbon containing formations is an ester of sulfonic acid, e.g. monoethoxylated dodecyl benzene sulfonic acid, preferably used in combination with from 0.1 to 2 parts by weight of a surfactant.

REFERENCES:
patent: 2831013 (1958-04-01), Mark
patent: 2965658 (1960-12-01), Kirkpatrick
patent: 3083158 (1963-03-01), Markham
patent: 3779916 (1973-12-01), Crowe

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