Huntsman Petrochemical Corporation

James Machac

The present disclosure provides water-based well treatment fluids methods of using such fluids in treating subterranean formations to prevent swelling and/or migration of fines. The water-based well treatment fluid contains an aqueous continuous phase and a clay stabilizing agent comprising less than 20% by weight, based on the total weight of the clay stabilizing agent, of an unhindered primary amine and a second amine selected from an alkanolamine, a polyalkylene polyamine, a compound having a formula R—(CH)—NHwhere Ris a piperazino group or a morpholino group and d is an integer from 0 to 10, a compound having the formula where h is an integer from about 2 to about 7 and a mixture thereof.

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The Woodlands, TX, United States of America

James Machac