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Self-elevating mast employing draw works
A system comprising a support structure having a plurality of vertically extending members arranged to define a mast channel, the support structure attached to a platform having a rig floor and the support structure positioned above an opening in the rig floor; a first mast section that is attached to the support structure; a second mast section that is attached to the support structure and the first mast section; and a third mast section; wherein the system has a first arrangement in which the third mast section is located below the rig floor in a vertical position and is vertically spaced from the second mast; and wherein the system has a second arrangement in which the third mast section is attached to the second mast section and at least a portion of the third mast extends within the opening of the rig floor.
Self-elevating mast employing draw works
A system comprising a support structure having a plurality of vertically extending members arranged to define a mast channel, the support structure attached to a platform having a rig floor and the support structure positioned above an opening in the rig floor; a first mast section that is attached to the support structure; a second mast section that is attached to the support structure and the first mast section; and a third mast section; wherein the system has a first arrangement in which the third mast section is located below the rig floor in a vertical position and is vertically spaced from the second mast; and wherein the system has a second arrangement in which the third mast section is attached to the second mast section and at least a portion of the third mast extends within the opening of the rig floor.
Self-elevating mast employing draw works
PETRELLO ANTHONY (Autor:in) / REDDY PADIRA (Autor:in) / GUPTA ASHISH (Autor:in) / BAILEY SEAN M (Autor:in)
08.03.2016
Patent
Elektronische Ressource
Englisch
Europäisches Patentamt | 2020
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