Compositions and methods for hindering asphaltene deposition

Details Compositions and methods for hindering asphaltene deposition Compositions and methods for hindering asphaltene deposition

E - Fixed Constructions

21

B

E21B 43/28 (2006.01) C09K 8/524 (2006.01)

Patent

CA 2736154

Methods and compositions for hindering asphaltene deposition. One method comprising: identifying an interval of the subterranean formation to be treated with a relative permeability modifier to hinder subsequent asphaltene deposition; introducing the relative permeability modifier into the subterranean formation; and allowing the relative permeability modifier to contact the interval, thereby attaching to surfaces within the subterranean formation and hindering subsequent asphaltene deposition.

La présente invention concerne des procédés et des compositions destinés à bloquer le dépôt dasphaltène. Un procédé consiste à : identifier un intervalle de la formation souterraine à traiter avec un modificateur de perméabilité relative afin de bloquer le dépôt dasphaltène subséquent; introduire le modificateur de perméabilité relative à lintérieur de la formation souterraine; et permettre au modificateur de perméabilité relative dentrer en contact avec lintervalle, ce qui permet la liaison aux surfaces à lintérieur de la formation souterraine et le blocage du dépôt dasphaltène subséquent.

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