Device for a Tower for Well Operations and Use of Same

Abstract

A device and method are for well operations. The device includes a tower with an outside and an inside. The tower is provided, on its outside with a work platform vertically movable in the position of use and a vertically movable equipment platform which is independently movable relative to the work platform. The work platform is provided with a hanger device.

1 . A device for well operations comprises a tower with an outside and an inside, the tower being provided, on its outside, with a work platform vertically movable in the position of use and a vertically movable equipment platform which is independently movable relative to the work platform, wherein the work platform is provided with a hanger device. 
     
     
         2 . The device in accordance with  claim 1 , wherein the hanger device includes a false rotary and slips. 
     
     
         3 . The device in accordance with  claim 1 , wherein the hanger device includes a gripper claw. 
     
     
         4 . The device in accordance with  claim 1 , wherein the work platform is provided with a blowout preventer. 
     
     
         5 . The device in accordance with  claim 1 , wherein the equipment platform is provided with at least one piece of well operation equipment selected from a group consisting of an injector, cable operation equipment and snubbing equipment. 
     
     
         6 . The device in accordance with  claim 5 , wherein, in its position of use, the injector is provided with means for horizontal and vertical movement relative to the equipment platform. 
     
     
         7 . The device in accordance with  claim 1 , wherein the tower is arranged to receive a magazine for well equipment. 
     
     
         8 . The device in accordance with  claim 7 , wherein the magazine is provided with an opening facing the work platform and the equipment platform. 
     
     
         9 . The device in accordance with  claim 1 , wherein the equipment platform is provided with a pick-up mechanism for manipulating the well equipment. 
     
     
         10 . The device in accordance with  claim 1 , wherein on its outside the tower is provided with an external, vertically positionable manipulator arm. 
     
     
         11 . The device in accordance with  claim 1 , wherein on its outside the tower is provided with a vertically positionable lift. 
     
     
         12 . The device in accordance with  claim 1 , wherein the tower is arranged to be transported in a horizontal position and provided with means for vertical positioning at a point of use. 
     
     
         13 . A method for well operations including the use of a tower with an outside and an inside, the tower being provided, on its outside, with a work platform vertically movable in the position of use and a vertically movable equipment platform which is independently movable relative to the work platform, the method comprising providing the work platform with a hanger device and temporarily bringing the hanger device to hold a riser or a riser joint fixed.