Multiple contour coiled tubing gripper block
AssigneeHalliburton Energy Services, Inc.
InventorKenneth C. Parks
Life of this patent
Estimating the term…
Abstract
A gripper block for use in grippingly engaging coiled tubing, pipe, rod, cable or like objects having various outside dimensions is provided. The gripper block has a gripping portion which includes a curved and a planar gripping surface. The planar gripping surface preferably includes a pair of opposed sloped planar gripping surfaces to engage coiled tubing, preferably steel coiled tubing of varying diameters. The sloped gripping surfaces preferably provide a V-shaped engagement configuration. The curved gripping surface is adapted to engage coiled tubing, preferably composite coiled tubing having a diameter less than the coiled tubing to be engaged by the sloped gripping surfaces.
Claims26
A gripper block for use in a gripper chain in a device for moving elongated objects, the gripper block comprising:
- a block body adapted to be connected to said gripper chain, said block body having a gripping portion for engaging said elongated objects, said gripping portion comprising:
- a curved gripping surface for engaging and moving said elongated objects in and out of a well;
- and
- pair of sloped planar gripping surfaces for engaging and moving said elongated objects in and out of said well;
- wherein said curved surface will grippingly engage and move elongated objects having a first outer diameter, and wherein said sloped planar surfaces will grippingly engage and move elongated objects having diameters greater than said first diameter.
A gripper block for use in an injector apparatus for moving tubing in and out of a wellbore, said gripper block comprising:
- a block body, said body being connectable to a gripper chain in said injector apparatus;
- said block body defining an arcuate gripping surface for engaging a tubing having a first outer diameter, wherein said arcuate gripping surface will engage said tubing with said first outer diameter to move said tubing in and out of said well;
- and
- a pair of planar gripping surfaces for engaging tubing having a diameter in a range from a second diameter to a third diameter, said second and third diameters having a magnitude greater than said first diameter, wherein said planar gripping surfaces will engage said tubing having a diameter in said range from said second to said third diameter to move said tubing in and out of said wellbore.
A gripper block for use in a gripper chain in a device for moving elongated objects, the gripper block comprising:
- a block body adapted to be connected to said gripper chain, said block body having a gripping portion for engaging said elongated objects, said gripping portion comprising:
- a curved gripping surface for engaging said elongated objects, said curved gripping surface comprising a plurality of ridges having grooves therebetween;
- and
- a pair of sloped planar gripping surfaces for engaging said elongated objects;
- wherein said curved surface will grippingly engage elongated objects having up to a first outer diameter, and wherein said sloped planar surfaces will grippingly engage elongated objects having a diameter greater than said first diameter.
A gripper block for use in an injector apparatus for moving tubing in and out of a wellbore, said gripper block comprising:
- a block body, said body being connectable to a gripper chain in said injector apparatus;
- said block body defining an arcuate gripping surface for engaging a tubing having a first outer diameter, wherein said arcuate gripping surface has grooves defined therein and wherein said arcuate gripping surface will engage said tubing with said first outer diameter to move said tubing in and out of said wellbore;
- and
- a pair of planar gripping surfaces for engaging tubing having a diameter in a range from a second diameter to a third diameter, said second and third diameters having a magnitude greater than said first diameter, wherein said planar gripping surfaces will engage said tubing having a diameter in said range from said second to said third diameter to move said tubing in and out of said wellbore.
A gripper block for use in a gripper chain in a device for moving in and out of a well, the gripper block comprising:
- a block body adapted to be connected to said gripper chain, the block body having a gripping portion comprising:
- a curved gripping surface for engaging said elongated objects, said curved gripping surface having outer ends;
- and
- a pair of flat gripping surfaces for engaging said elongated objects wherein said flat gripping surfaces diverge from said outer ends of said curved gripping surface, and wherein the flat gripping surfaces are adapted to engage elongated objects having an outer diameter greater than the outer diameter of the elongated objects that can be gripped by said curved gripping surface.
Dependencies are inferred from the claim text.