Delayed acid for gel breaking

Details Delayed acid for gel breaking Delayed acid for gel breaking

E - Fixed Constructions

21

B

E21B 43/26 (2006.01) C09K 8/08 (2006.01) C09K 8/12 (2006.01) C09K 8/512 (2006.01) C09K 8/68 (2006.01) C09K 8/88 (2006.01) C12N 9/18 (2006.01)

Patent

CA 2192348

The present invention provides a method of breaking a crosslinked water-based gel, which method comprises: (i) providing a said gel and, present therewith, an enzyme and a substrate which is capable of being converted by the enzyme into an organic acid which breaks down the gel, and (ii) allowing the enzyme to catalyse the conversion of the substrate into the acid to cause thereby the breakdown of the gel.

La présente invention concerne un procédé de décomposition d'un gel réticulé à base aqueuse consistant à: (i) produire un gel en présence d'une enzyme et d'un substrat pouvant être transformé par l'enzyme en un acide organique qui décompose le gel, et (ii) permettre à l'enzyme de catalyser la conversion du substrat en acide afin de provoquer la décomposition du gel.

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