B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 19/00 (2006.01) E21B 43/00 (2006.01) E21B 43/16 (2006.01) F17D 1/12 (2006.01)
Patent
CA 2455677
The invention relates to a method of optimizing the displacement of a viscoelastic fluid in a pore, tube, duct, channel, fracture, porous medium or interconnected latticework or in an interconnected assembly of pores, tubes, ducts, channels, cavities and/or fractures using a fluid with a lower viscosity. The inventive method consists in displacing the viscoelastic fluid using a displacing fluid which supplies a signal thereto comprising pressure pulses at an optimum frequency. In this way, the moisture layer between the displaced fluid and the walls of the pores, tubes, channels, cavities, fractures or porous medium is dynamically reduced during said displacement, thereby facilitating optimum extraction.
L'invention concerne un procédé permettant d'optimiser le déplacement d'un fluide viscoélastique dans un pore, un tube, un conduit, un canal, une fracture, un milieu poreux ou un réseau interconnecté ou un ensemble interconnecté de pores, tubes, conduits, canaux, cavités et/ou fractures à l'aide d'un fluide de plus faible viscosité. Ledit procédé consiste à déplacer le fluide viscoélastique à l'aide d'un fluide de déplacement lui communiquant un signal à impulsions de pression à une certaine fréquence optimale, générant la réduction dynamique de la couche d'humidité entre le fluide déplacé et les parois des pores, conduits, canaux, cavités, fractures ou milieu poreux au cours du déplacement, facilitant ainsi une extraction optimale.
Del Rio Portilla Jesus Antonio
Lopez de Haro Mariano
Corvera-Poire Eugenia
Gowling Lafleur Henderson Llp
Universidad Nacional Autonoma de Mexico (unam)
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