SLEEVE VALVE AND METHOD FOR PROVIDING A CONTROLLABLE FLUID FLOW

摘要

The invention relates to a sleeve valve (1) for controlling fluid flow (34) between a hydrocarbon reservoar (2) and a production tubing (3) in a well (4) in the hydrocarbon reservoar (2). The sleeve valve (1) comprises an outer sleeve (5) and an inner sleeve (6) which each have at least one opening (7, 8), in which the inner sleeve (6) is movable between an open position in which openings (7, 8) of the inner sleeve and the outer sleeve correspond, and a closed position in which the openings (7, 8) do not correspond. The sleeve valve (1) comprises at least one chamber (9) for concrete curing-preventing substance, and at least one passage from the chamber (9) for concrete curing-preventing substance to at least one injection outlet (10) on the outside (6) of the inner sleeve, for injecting concrete curing-preventing substance in non-cured concrete (11) outside the outer sleeve (5).