Jack for drilling
AssigneePetro Well Services AS
InventorsBjørn Bjerke, Vivian Larsgård-Ingebrigtsen, Lars Martin Godø
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Abstract
The present invention concerns a jack (1) for drilling, the jack comprising an elongated receiving element (3A) for receiving and clamping a tubular element and a base (2) comprising an open-ended aperture, the elongated receiving element (3A) being arranged in the open-ended aperture. The elongated receiving element (3A) is linearly moveable through the open-ended aperture between a retracted position and an extended position. The invention further concerns a drill rig, the use of a jack for drilling and a method for handling a pipe section of a drill string.
Claims15
A jack for drilling, the jack comprising:
- an elongated receiving element for receiving and clamping a tubular element;
- and
- a base including an open-ended aperture, the elongated receiving element being arranged in the open-ended aperture;
- wherein
- the elongated receiving element is linearly moveable through the open-ended aperture between a retracted position and an extended position;
- the base includes one or more gear wheels mounted in the open-ended aperture;
- the elongated receiving element includes two linear gears arranged on an external surface of the elongated receiving element along the axial direction thereof, and one or more gear flanges extending radially outward along the axial direction of the elongated receiving element, wherein the two linear gears are arranged on opposite sides of each of the one or more gear flanges, the two linear gears facing away from one another;
- and
- each linear gear is engaged by at least one gear wheel.
Dependencies are inferred from the claim text.