E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/267 (2006.01)
Patent
CA 2492935
This invention relates generally to the art of hydraulic fracturing in subterranean formations and more particularly to a method and means for optimizing fracture conductivity. According to the present invention, the well productivity is increased by sequentially injecting into the wellbore alternate stages of fracturing fluids having a contrast in their ability to transport propping agents to improve proppant placement, or having a contrast in the amount of transported propping agents.
L'invention concerne en règle générale la fracturation hydraulique de formation souterraine et plus particulièrement un procédé et un système permettant d'optimiser la conductivité de fracture. On améliore ainsi le rendement du forage, en injectant séquentiellement dans le trou de forage des phases alternées de fluides de fracturation qui présentent un potentiel contrasté de transport des agents de soutènement, et améliorent donc la mise en place du soutènement, ou bien qui transportent différentes quantités d'agents de soutènement.
England Kevin
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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