Methods and apparatus to sample heavy oil in a subterranean...

Details Methods and apparatus to sample heavy oil in a subterranean... Methods and apparatus to sample heavy oil in a subterranean...

E - Fixed Constructions

21

B

E21B 49/08 (2006.01) E21B 49/10 (2006.01)

Patent

CA 2617115

A method for sampling fluid in a subterranean formation includes, reducing a viscosity a fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of a fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurizing by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.

Une méthode d'échantillonnage de fluide d'une formation souterraine comprend la réduction de la viscosité d'un fluide, la mise en pression d'une partie de la formation souterraine, ainsi que le prélèvement d'un échantillon de fluide. Plus précisément, la viscosité d'un fluide dans une partie de la formation souterraine est réduite et une partie de la formation souterraine est mise en pression en injectant un fluide de déplacement dans la formation souterraine. Un échantillon du fluide mis en pression par le fluide de déplacement est ensuite prélevé.

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