E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/267 (2006.01)
Patent
CA 2523872
The present invention relates to a proppant for the hydraulic fracturing of oil or gas wells, which consists of a mixture of from 10 to 95% by weight of a spherical proppant and from 5 to 90% by weight of an angular material, the percentages being based on the total weight of the mixture. The proppant obtained according to the present invention is useful for eliminating or decreasing th e "flow-back" phenomenon in operations in oil or gas wells.
L'invention concerne un agent de soutènement pour fracturation hydraulique de puits de pétrole ou de gaz. Cet agent de soutènement contient un mélange qui renferme entre 10 et 95 % en poids d'un agent de soutènement sphérique et entre 5 et 90 % en poids d'un matériau angulaire, les pourcentages étant basés sur le poids total du mélange. L'agent de soutènement obtenu est utilisé pour supprimer ou réduire le phénomène de reflux qui peut se produire lors des opérations exécutées dans des puits de pétrole et de gaz.
Curimbaba Sebastiao
de Paiva Cortes Guilherme
Warwick Kerr de Paiva Cortes Gabriel
Mineracao Curimbaba Ltda.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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