A sleeve valve for controlling fluid flow between a...

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 34/14 (2006.01) F16K 3/24 (2006.01)

Patent

CA 2436999

A sleeve valve (3) for fluid flow between a hydrocarbon reservoir (4) and a well (5) comprises a first sleeve (2, 102) and a second sleeve (7, 107) which are relatively movable between a first positions in which at least one opening (1, 101) in the first sleeve (2, 102) is aligned or misaligned with at least one opening (8, 108) in the second sleeve in order to admit or shut off the fluid flow. The first sleeve (2, 102) is provided with a radially (R) movable sealing element (9) that has a sealing surface (11) adapted to rest against the second sleeve (7, 107) around the second sleeve opening (8, 108), and at least one tension element (60, 61, 62, 70) presses the sealing element (9) with its sealing surface (11) against the second sleeve (7, 107). The invention also relates to a method for the assembly of such a sleeve valve, wherein a sealing element (9) and a tension element (11) are placed in the outer sleeve opening (1) and a clamping tool is adapted to the opening (10) in the sealing element (9) and moved outwards together with the sealing element until the sealing element flush with the inner surface (21) of the outer sleeve. Thereafter, the inner sleeve (7) is inserted into the outer sleeve (2) and the sealing element (9) is allowed to rest against the inner sleeve (7) and the clamping tool is removed.

L'invention concerne une soupape (3) à manchon permettant la passage du fluide entre un réservoir (4) d'hydrocarbures et un puits (5). Cette soupape comprend un premier manchon (2, 102) et un second manchon (7, 107) qui peuvent se déplacer l'un relativement à l'autre entre une première position dans laquelle au moins une ouverture (1, 101) du premier manchon (2, 102) est alignée avec moins une ouverture (8, 108) du second manchon ou décalée par rapport à cette dernière, de manière à autoriser ou à bloquer le passage du fluide. Le premier manchon (2, 102) comporte un organe(9) d'étanchéité à déplacement radial (R) qui possède une surface (11) d'étanchéité conçue pour venir s'appuyer contre le second manchon ((7, 107) sur le pourtour de l'ouverture (8, 108) du second manchon, et au moins un organe (60, 61, 62, 70) tendeur sollicite l'organe (9) d'étanchéité de manière à presser sa surface (11) d'étanchéité contre le second manchon (7, 107). L'invention concerne également un procédé permettant le montage d'une telle soupape à manchon. Ce procédé consiste à placer un organe (9) d'étanchéité et un organe (11) tendeur dans l'ouverture (1) du manchon externe. On adapte un outil de serrage sur l'ouverture (10) de l'élément (9) d'étanchéité et on le déplace vers l'extérieur simultanément à l'organe d'étanchéité jusqu'à ce que l'organe d'étanchéité affleure la surface (21) intérieure du manchon externe. On introduit ensuite le manchon (7) interne dans le manchon (2) externe, on permet à l'organe (9) d'étanchéité de venir s'appuyer contre le manchon (7) interne et on retire l'outil de serrage.

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