A SLEEVE VALVE FOR CONTROLLING FLUID FLOW BETWEEN A HYDROCARBON RESERVOIR AND TUBING IN A WELL AND METHOD FOR THE ASSEMBLY OF A SLEEVE VALVE

摘要

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.