Drainage for a Telescope Section of a Landing String

A drainage device for a tubular, telescopic pipe-landing unit provided with a through pipe bore partially formed of a center pipe extending from an upper end portion of an outer pipe-landing section and with a free end in through an upper end portion of an inner pipe-landing section, which is axially movable in the outer pipe-landing section, the center pipe being provided with at least one fluid-communication opening arranged for pressure equalization between the pipe bore and an annulus defined between the center pipe and the outer pipe-landing section, wherein the annulus is provided with a drain passage which is arranged to be opened by the axial movement of the inner pipe-landing section into the outer pipe-landing section away from an extended, operative position, in which an abutment portion of the upper end portion of the inner pipe-landing section is resting sealingly against a seat portion on a lower end portion of the outer pipe-landing section.