Ascorbic acid or erythorbic acid for prevention of formation...

Details Ascorbic acid or erythorbic acid for prevention of formation... Ascorbic acid or erythorbic acid for prevention of formation...

C - Chemistry, Metallurgy

09

K

166/25, 31/32

C09K 8/74 (2006.01) C09K 8/528 (2006.01) E21B 43/22 (2006.01)

Patent

CA 1137290

ABSTRACT The formation and subsequent precipitation of undesirable ferric compounds during the acid treatment of wells is substantially eliminated by incorporating in said treating acid an inhibiting amount of a monobasic alkanoic and/or alkenoic acid having at least four carbon atoms and bearing at least two alcoholic hydroxyl groups per molecule, and/or a soluble salt or .gamma.-lactone of said acid. E.g. ascorbic acid or erythorbic acid. 27,986-F

372741

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