Steam injection process for recovering heavy oil

Details Steam injection process for recovering heavy oil Steam injection process for recovering heavy oil

E - Fixed Constructions

21

B

166/39

E21B 43/24 (2006.01) C02F 1/02 (2006.01) C02F 5/02 (2006.01) E21B 43/40 (2006.01)

Patent

CA 2019163

A steam flood recovery process for recovering heavy oil from a producing formation wherein the production stream is processed to separate the produced water from the heavy oil and then the hardness of the water is first reduced to from 10-60 ppm by treatment with caustic and then reduced to less than 1 ppm by flowing it through a weak acid cation resin whereby the water can be used to generate the steam used in the recovery operation.

Procédé de récupération à injection de vapeur pour récupérer de l'huile lourde d'une formation de production dans lequel on traite le produit en circulation de manière à séparer l'eau produite et l'huile lourde et ensuite on réduit d'abord la dureté de l'eau à un niveau compris entre 10 et 60 ppm en la traitant avec du caustique, puis à moins de 1 ppm en la faisant passer dans une résine de cations faiblement acide, ce qui permet d'utiliser l'eau pour produire la vapeur utilisée dans le procédé de récupération.

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