Method for treatment of underground reservoirs

Details Method for treatment of underground reservoirs Method for treatment of underground reservoirs

E - Fixed Constructions

21

B

E21B 37/06 (2006.01) C09K 8/52 (2006.01) C09K 8/86 (2006.01) E21B 43/25 (2006.01)

Patent

CA 2366350

A method for treating an underground reservoir, which method comprises introducing into the reservoir a treatment fluid comprising, dissolved or dispersed in water, an ester and a polymer breaker, such that the ester hydrolyses to produce an organic acid to dissolve acid soluble material present within the reservoir and the polymer breaker degrades polymeric material present within the reservoir.

L'invention concerne un procédé permettant de traiter un réservoir souterrain. Ce procédé consiste à introduire dans le réservoir un fluide de traitement contenant, dissous ou dispersés dans l'eau, un ester et un briseur de polymère, de sorte que l'ester subit une hydrolyse afin de produire un acide organique permettant de dissoudre les matières solubles dans l'acide qui sont présentes dans le réservoir tandis que le briseur de polymère dégrade la matière polymère présente dans le réservoir.

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