Patent ID: 6591904
Filing Date: 2003-07-15
Classification: E21B

Abstract:
Equipment for stowing and handling drill pipes, the equipment including:extraction means to take each drill pipe in succession out from a well; means to decouple the drill pipe that has been taken out from a drill pipe which is still partially inside the well; means to feed each drill pipe inside a service well placed at one side of the well; a rack container located next to the service well and presenting a predetermined number of vertical bins intended to house the pipes; and transport means to move the pipe from the service well to the rack container, the transport means including a central control tower located in front of said container and adapted to rotate around a vertical axis of rotation and a grip device supported by the central tower and movable together with, and in relationship to, the central tower from a working grip position at the well to a working release position at one of the bins of the container; wherein the extraction means includes a support platform which is vertically crossed by the transport means and the container, the support platform including a mobile part which is integral with the central tower and a fixed part which is provided with a through hole for the well and with a recess which is open towards the mobile part and which defines an upper portion of said service well, and a base which is parallel to said support platform and supports the platform; and wherein the central tower includes a support base which is integral with the base and a control column which is mounted through the mobile part of the platform and rotatably supported by the support base in order to rotate around said axis of rotation together with the mobile part.