Sand plugs and placing sand plugs in highly deviated wells

Details Sand plugs and placing sand plugs in highly deviated wells Sand plugs and placing sand plugs in highly deviated wells

E - Fixed Constructions

21

B

E21B 33/12 (2006.01)

Patent

CA 2656768

Methods of isolating portions of a subterranean formation adjacent to a highly deviated well bore having a downstream end and an upstream end and substantially filling a first zone with a sand plug comprising lightweight particulates having a specific gravity of below about 1.25 so as to substantially isolate the first zone from the second zone wherein the first zone is located closer to the downstream end of the wellbore than the second zone.

La présente porte sur des méthodes d'isolation de parties d'une formation souterraine voisine d'un puits de forage hautement dévié comprenant une extrémité en aval et une extrémité en amont et remplissant essentiellement une première zone avec un bouchon de sable comprenant des particules légères ayant une gravité spécifique inférieure à 1,25 de façon à essentiellement isoler la première zone de la deuxième zone où la première zone est située plus proche de l'extrémité en aval du puits de forage que la deuxième zone.

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