Gripper assembly for a coiled tubing injector
AssigneeTissa Engineering Inc.
InventorsDrago Crnogorac, Allan Joseph Pleskie, Wojciech Niemczewski, Matthew Gotch
Life of this patent
Estimating the term…
Abstract
An improved gripper shoe for a coiled tubing injector having a gripper shoe having a plurality of arcuate gripper elements spaced apart at predetermined intervals, a gripper carrier having a base having an upper surface and a lower surface, a first wall and a second wall located on the upper surface of the base, a mechanism for securing the gripper carrier to a continuous chain of a coiled tube injector located on the lower surface of the gripper assembly, and a mechanism for securing the gripper shoe to the gripper carrier, such that the gripper shoe is securely received by, and releasable from, the gripper carrier.
Claims13
A gripper assembly for a coiled tubing injector, comprising:
- a gripper shoe having:
- a base having a first side, a second side, a first foot, a second foot, a first end and a second end, the first foot extending along the first side, the second foot extending along the second side;
- a plurality of discrete arcuate gripper elements spaced apart at predetermined intervals between said first end and said second end of said base,
- each of said arcuate gripper elements extending between said first side and said second side of said base,
- each of said arcuate gripper elements having a first outwardly facing side, a second outwardly facing side, and an arcuate gripping surface extending between said first outwardly facing side and said second outwardly facing side, the first outwardly facing side extending from the base first foot and the second outwardly facing side extending from the base second foot;
- and
- a gripper carrier having:
- a base having an upper surface and a lower surface, wherein the upper surface of the gripper carrier is adapted to receive the gripper shoe and said gripper shoe is secured to said gripper carrier by a fastener assembly and wherein said lower surface of said gripper carrier is adapted to be secured to a continuous chain of a coil tube injector.
A gripper shoe for a coiled tubing injector gripper assembly, comprising:
- a base having a first side, a second side, a first foot, a second foot, a first end and a second end, the first foot extending along the first side, the second foot extending along the second side, a plurality of discrete arcuate gripper elements spaced apart at predetermined intervals between said first end and said second end of said base, each of said plurality of arcuate gripper elements extending between said first side and said second side of said base, each of said arcuate gripper elements having a first outwardly facing side, a second outwardly facing side, and an arcuate gripping surface extending between said first outwardly facing side and said second outwardly facing side, the first outwardly facing side extending from the base first foot and the second outwardly facing side extending from the base second foot.
Dependencies are inferred from the claim text.