Drainage of heavy oil reservoir via horizontal wellbore

Details Drainage of heavy oil reservoir via horizontal wellbore Drainage of heavy oil reservoir via horizontal wellbore

E - Fixed Constructions

21

B

E21B 43/16 (2006.01) E21B 43/17 (2006.01) E21B 43/20 (2006.01)

Patent

CA 2596463

Systems and methods for drainage of a heavy oil reservoir via a horizontal wellbore. A method of improving production of fluid from a subterranean formation includes the step of propagating a generally vertical inclusion into the formation from a generally horizontal wellbore intersecting the formation. The inclusion is propagated into a portion of the formation having a bulk modulus of less than approximately 750,000 psi. A well system includes a generally vertical inclusion propagated into a subterranean formation from a generally horizontal wellbore which intersects the formation. The formation comprises weakly cemented sediment.

Cet extrait concerne les systèmes et méthodes de vidange d'un réservoir à huile lourde par un forage horizontal. Une méthode améliorant la production de liquide d'une formation souterraine comprend l'opération de propagation d'une inclusion généralement verticale dans la formation, à partir d'un forage généralement horizontal croisant cette formation. L'inclusion est propagée dans une formation ayant un module de compression inférieur à environ 750 000 psi. Un réseau de puits comprend une inclusion généralement verticale propagée dans une formation souterraine à partir d'un forage généralement horizontal croisant cette formation. La formation contient du sédiment cimenté.

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