C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/588 (2006.01) C09K 8/592 (2006.01) E21B 43/20 (2006.01) E21B 43/24 (2006.01)
Patent
CA 2668467
A method of recovering oil from a subterranean formation which includes an association production well involves contacting oil in the formation with a treatment fluid formulation which includes polyvinylalcohol and collecting oil which is being contacted with said treatment fluid formulation by said production well. Use of the polyvinylalcohol, optionally in combination with other materials, facilitates recovery of oil from subterranean formation, particularly those involving medium or high viscosity oils.
Un procédé d'extraction de pétrole depuis une formation souterraine comprenant un puits de production normalisé implique la mise en contact du pétrole présent dans la formation avec un fluide de traitement comportant de l'alcool polyvinylique et le recueil du pétrole mis en contact avec ledit liquide de traitement par l'intermédiaire dudit puits de production. L'utilisation d'alcool polyvinylique, éventuellement en association avec d'autres matériaux, facilite l'extraction du pétrole depuis une formation souterraine, en particulier dans le cas de pétroles à viscosité moyenne ou élevée.
Bolton Guy Mallory
Crabtree Michael John
Fletcher Philip
Forsyth Jeffrey
Proflux Systems Llp
Ridout & Maybee Llp
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