Apparatus and method for creating pressure pulses in a wellbore

Details Apparatus and method for creating pressure pulses in a wellbore Apparatus and method for creating pressure pulses in a wellbore

E - Fixed Constructions

21

B

E21B 28/00 (2006.01)

Patent

CA 2689038

In accordance with a broad aspect of the present invention there is provided an apparatus for wellbore fluid treatment, comprising: a body with a lower end, an upper end, an exterior surface and an interior surface defining a long bore open at the upper end; an outlet port spaced from the upper end, the outlet port permitting the communication of fluids between the long bore and the exterior surface; and, a die in the long bore between the upper end and the outlet port, the die being substantially immoveable within the long bore and having an inner open diameter in which a plug can land to create a seal in the long bore before passing through the inner open diameter.

Selon un aspect large de la présente invention, cette dernière a trait à un appareil de traitement des fluides dans le puits de forage comprenant un corps ayant une extrémité inférieure, une extrémité supérieure, une surface extérieure et une surface intérieure délimitant un long alésage ouvert à l'extrémité supérieure et un orifice de sortie éloigné de l'extrémité supérieure, l'orifice de sortie permettant la communication des fluides entre le long alésage et la surface extérieure; et une matrice dans le long alésage entre l'extrémité supérieure et le l'orifice de sortie, la matrice est substantiellement inamovible dans le long alésage et possède un diamètre intérieur ouvert dans lequel un bouchon peut se loger pour créer un joint dans le long alésage avant de passer dans le diamètre intérieur ouvert.

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