Power Swivel Stand Having Pivoting Positioning Arms
AssigneeProfessional Wireline Rentals, LLC
InventorRaleigh J. Boudreaux
Life of this patent
Estimating the term…
Abstract
A power swivel stand for horizontally and vertically positioning a power swivel with respect to a well being serviced. A frame is mounted on a base, preferably by pinned connections. A carriage is mounted in the frame and is vertically positioned by one or more hydraulic cylinders. Attached to the carriage are one or more positioning arms, in such a manner that the positioning arms can be pivoted in a vertical plane. The positioning arms can be pivoted by extension and retraction of hydraulic cylinders connecting the carriage and the positioning arms. A power swivel is held by the positioning arms. Pivoting the positioning arms moves the power swivel horizontally into and out of alignment with the well being serviced.
Claims16
A power swivel stand, comprising:
- a base;
- a frame attached to said base, such that said frame cannot move horizontally with respect to said base;
- a carriage disposed on said frame;
- a means for vertically positioning said carriage on said frame;
- one or more positioning arms pivotally attached to said carriage, said positioning arms adapted to hold a power swivel;
- and
- a means for pivoting said positioning arms.
A power swivel stand, comprising:
- a base;
- a frame attached to said base, such that said frame cannot move horizontally with respect to said base;
- a carriage disposed on said frame and vertically positionable thereon;
- a means for horizontally positioning a power swivel carried by said carriage, without horizontal movement of said frame with respect to said base.
A method of positioning a power swivel vertically over a well to be serviced, comprising the steps of:
- positioning a base proximal said well, said base comprising a frame which is horizontally fixed with respect to said base, said frame supporting a carriage which in turn supports said power swivel, and
- moving said power swivel into and out of vertical alignment with said well without moving said frame.
Dependencies are inferred from the claim text.