Apparatus and method for reducing the residual bending and fatigue in coiled tubing

Abstract

The subject disclosure provides a reel and a gooseneck which significantly reduce residual bending of the coiled tubing. The subject disclosure discloses a gooseneck that provides reverse bending forces to reduce the residual bending as a result of the reel. Further, the subject disclosure discloses a gooseneck having an adjustable radius during the coiled tubing operations which optimizes the residual bending process. The subject disclosure also discloses a heating and cooling module. The heating and cooling modules are attached to the gooseneck and are used to reduce fatigue of the coiled tubing and elongate the life cycle of the coiled tubing.

1 ) An apparatus for reducing residual bending in coiled tubing from a reel comprising:
 a gooseneck positioned to receive the coiled tubing from the coiled tubing reel and to cause the coiled tubing to reverse bend to an extent sufficient to remove residual bend resulting from the coiled tubing being coiled on the reel.   
     
     
         2 ) The apparatus of  claim 1  wherein the gooseneck guides the coiled tubing in a second rotation direction opposite to a first rotation direction of the coiled tubing on the reel. 
     
     
         3 ) The apparatus of  claim 1  wherein a radius of curvature of the gooseneck is adjustable. 
     
     
         4 ) The apparatus of  claim 3  wherein a magnitude of the reverse bend is controlled by adjusting the radius of curvature of the gooseneck. 
     
     
         5 ) The apparatus of  claim 1  wherein the gooseneck further comprises:
 a first section of gooseneck guiding the coiled tubing in a first rotation direction and a second section of gooseneck guiding the coiled tubing in a second rotation direction opposite to the first rotation direction. 
 
     
     
         6 ) The apparatus of  claim 5  wherein the first rotation direction is the same as a rotation direction of the coiled tubing on a reel. 
     
     
         7 ) The apparatus of  claim 5  wherein a radius of curvature of the second section of gooseneck is adjustable. 
     
     
         8 ) The apparatus of  claim 1  wherein a portion of the gooseneck comprises a plurality of segments. 
     
     
         9 ) The apparatus of  claim 8  wherein the plurality of segments are used to adjust a radius of curvature. 
     
     
         10 ) The apparatus of  claim 8  wherein the plurality of segments are collapsible thus decreasing a radius of curvature. 
     
     
         11 ) The apparatus of  claim 8  wherein the plurality of segments are expandable thus increasing a radius of curvature. 
     
     
         12 ) The apparatus of  claim 4  wherein the radius of curvature changes as a diameter of the reel changes. 
     
     
         13 ) The apparatus of  claim 4  wherein the radius of curvature changes as the coiled tubing is wound or unwound from the reel. 
     
     
         14 ) The apparatus of  claim 1  further comprising a heating module and a cooling module. 
     
     
         15 ) The apparatus of  claim 14  wherein the heating module is attached to the gooseneck. 
     
     
         16 ) The apparatus of  claim 14  wherein the cooling module is wrapped around the coiled tubing proximal to the gooseneck. 
     
     
         17 ) The apparatus of  claim 16  wherein the cooling module confines a high temperature of the coiled tubing to an area proximal to the gooseneck. 
     
     
         18 ) A method for reducing residual bending in coiled tubing from a reel comprising:
 positioning a gooseneck and receiving the coiled tubing from the coiled tubing reel with the positioned gooseneck;   with the positioned gooseneck causing the coiled tubing to reverse bend to an extent sufficient to remove residual bend resulting from the coiled tubing being coiled on the reel.   
     
     
         19 ) The method of  claim 18  wherein with the gooseneck guiding the coiled tubing in a second rotation direction opposite to a first rotation direction of the coiled tubing on a reel. 
     
     
         20 ) The method of  claim 18  wherein the gooseneck further comprises:
 a first section of gooseneck guiding the coiled tubing in a first rotation direction and a second section of gooseneck guiding the coiled tubing in a second rotation direction opposite to the first rotation direction. 
 
     
     
         21 ) The method of  claim 20  wherein the first rotation direction is the same as a rotation direction of the coiled tubing on a reel. 
     
     
         22 ) The method of  claim 18  further comprising:
 adjusting a radius of curvature of the gooseneck.