Compositions – Leather or fur treating
Patent
1991-11-12
1992-10-06
Stoll, Robert L.
Compositions
Leather or fur treating
252 8553, 252 8554, E21B 4325
Patent
active
051529068
ABSTRACT:
A clay swelling inhibitor additive for oil and gas well treatment is disclosed. The additive comprises an aqueous solution of tetraalkylammonium chloride, preferably tetramethylammonium chloride and a quaternary amine-based cationic polyelectrolyte, such as methyl chloride quaternary salt of ethylene-ammonia condensation polymer. The additive composition synergistically retards water absorption by the down-hole clay formation.
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Aften Carl W.
Gabel Robert K.
Geist Gary L.
Lundeen Daniel N.
Miller Robert A.
Nalco Chemical Company
Stoll Robert L.
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