US2004084191A1PendingUtilityA1

Internal coiled tubing connector

32
Priority: Nov 1, 2002Filed: Nov 1, 2002Published: May 6, 2004
Est. expiryNov 1, 2022(expired)· nominal 20-yr term from priority
Inventors:Mary L. Laird
E21B 31/20E21B 17/046
32
PatentIndex Score
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Cited by
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References
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Claims

Abstract

The present invention generally relates to a connector for coiled tubing that resists torque developed by rotating downhole equipment. The connector couples to an inside diameter of the coiled tubing and can use a torque ring that rotationally locks the connector to the coiled tubing. Additionally, the connector can have a slot on an outside diameter thereof adapted to receive a weld bead on the inside diameter of the coiled tubing in order to rotationally lock the connector to the coiled tubing.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A connector for coupling a tubing to a downhole tool, comprising: 
 a body;    a slip assembly operatively connected to the body; and    a torque ring operatively connected to the body.    
     
     
         2 . The connector of  claim 1 , wherein the torque ring comprises a series of teeth adapted to engage an end of the tubing.  
     
     
         3 . The connector of  claim 1 , wherein the torque ring is rotationally locked to a portion of the body.  
     
     
         4 . The connector of  claim 1 , wherein the torque ring substantially prevents rotational movement between the connector and the tubing.  
     
     
         5 . The connector of  claim 1 , wherein the slip assembly substantially prevents axial movement between the connector and the tubing.  
     
     
         6 . The connector of  claim 1 , wherein a portion of the body is adapted to extend into an inside diameter of the tubing.  
     
     
         7 . The connector of  claim 1 , further comprising a packer.  
     
     
         8 . The connector of  claim 1 , further comprising: 
 a packer; and    a retaining ring positioned within a preformed profile on the body, wherein the retaining ring limits a compressive force on the packer.    
     
     
         9 . The connector of  claim 1 , further comprising a fishing neck operatively connected to the body.  
     
     
         10 . The connector of  claim 9 , wherein the fishing neck comprises a slot along at least a portion of the fishing neck, the slot being adapted to receive a weld bead on an inside diameter of the tubing.  
     
     
         11 . The connector of  claim 10 , wherein the fishing neck substantially prevents rotational movement between the connector and the tubing.  
     
     
         12 . The connector of  claim 1 , wherein the body comprises: 
 a mandrel; and    a sleeve axially movable relative to the mandrel.    
     
     
         13 . The connector of  claim 12 , wherein relative movement between the mandrel and the sleeve expands the slip assembly.  
     
     
         14 . The connector of  claim 12 , wherein relative movement between the mandrel and the sleeve engages at least a portion of the torque ring with an end of the tubular.  
     
     
         15 . The connector of  claim 12 , further comprising a packer, wherein relative movement between the mandrel and the sleeve subjects the packer to a compressive force.  
     
     
         16 . A connector for coupling a tubing to a downhole tool, comprising: 
 a body; and    a fishing neck operatively connected to the body, wherein the fishing neck comprises a slot adapted to receive a weld bead on an inside diameter of the tubing.    
     
     
         17 . The connector of  claim 16 , wherein the fishing neck substantially prevents rotational movement between the connector and the tubing.  
     
     
         18 . A method for coupling a tubing to a downhole tool, comprising: 
 positioning a connector proximate the tubing;    engaging at least a portion of a torque ring with an end of the tubing to prevent rotational movement between the tubing and the connector, the torque ring operatively connected to the connector;    expanding a slip assembly into contact with an inside diameter of the tubing to prevent axial movement between the tubing and the connector, the slip assembly operatively connected to the connector; and    connecting the downhole tool to the connector.    
     
     
         19 . The connector of  claim 18 , further comprising aligning a slot on an outside diameter of the connector with a weld bead on the inside diameter of the tubing to prevent rotational movement.  
     
     
         20 . The connector of  claim 18 , further comprising compressing a packer into contact with the inside diameter of the tubing.  
     
     
         21 . A method for coupling a tubing to a downhole tool, comprising: 
 positioning a connector proximate the tubing;    aligning a slot on an outside diameter of the connector with a weld bead on an inside diameter of the tubing in order to prevent rotational movement between the tubing and the connector;    expanding a slip assembly into contact with an inside diameter of the tubing to prevent axial movement between the tubing and the connector, the slip assembly operatively connected to the connector; and    connecting the downhole tool to the connector.    
     
     
         22 . The connector of  claim 21 , further comprising compressing a packer into contact with the inside diameter of the tubing.

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