Remove fines from a spent aqueous well treating fluid

Details Remove fines from a spent aqueous well treating fluid Remove fines from a spent aqueous well treating fluid

C - Chemistry, Metallurgy

09

K

C09K 8/12 (2006.01) C09K 8/03 (2006.01) C09K 8/10 (2006.01) E21B 21/06 (2006.01) C09K 7/02 (1995.01) C09K 7/00 (1995.01)

Patent

CA 2161024

Method of removing fines from a spent aqueous well treating fluid containing fines, a water-soluble polymer, a salting-out anion and/or a slightly soluble calcium or magnesium compound comprising the steps of: (a) raising the pH of the aqueous well treating fluid to allow agglomeration of the fines and precipitation of the water-soluble polymer; and (b) separating the agglomerates from the aqueous well treating fluid.

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