Adjustable fishing grapple tool

Abstract

Apparatuses and methods for borehole fishing include a borehole fishing tool. The borehole fishing tool includes a grapple for fixedly attaching to a fish in a borehole, at least two metal springs mounted in the grapple to generate expansion and contraction for catching the fish in the borehole, and a slip profile attached to each metal spring. The borehole fishing tool further includes a plurality of teeth mounted on the slip profile to engage the fish with the grapple and a connector attached to the borehole fishing tool to connect the borehole fishing tool to a conveyor.

What is claimed is: 
     
         1 . A borehole fishing tool, comprising:
 a grapple for fixedly attaching to a fish in a borehole;   at least two metal springs, mounted in the grapple, to generate expansion and contraction for catching the fish in the borehole;   a slip profile attached to each metal spring;   a plurality of teeth, mounted on the slip profile, to engage the fish with the grapple; and   a connector attached to the borehole fishing tool to connect the borehole fishing tool to a conveyor.   
     
     
         2 . The borehole fishing tool of  claim 1 ,
 wherein the plurality of teeth are designed so as to face uphole.   
     
     
         3 . The borehole fishing tool of  claim 1 ,
 wherein the plurality of teeth are designed each having unified angles.   
     
     
         4 . The borehole fishing tool of  claim 1 ,
 wherein the grapple comprises a neutral position to allow the fish to enter an inner circumference.   
     
     
         5 . The borehole fishing tool of  claim 1 ,
 wherein the grapple comprises a latching position to allow the at least two metal springs to be compressed to create space for the fish in the grapple.   
     
     
         6 . The borehole fishing tool of  claim 4 ,
 wherein the inner circumference is space inside the grapple.   
     
     
         7 . The borehole fishing tool of  claim 1 ,
 wherein each of the at least two metal springs are elastic.   
     
     
         8 . The borehole fishing tool of  claim 1 ,
 wherein each of the at least two metal springs is arranged such that the slip profile attached thereto is opposite to and facing another slip profile attached to another of the at least two metal springs.   
     
     
         9 . The borehole fishing tool of  claim 1 ,
 wherein the conveyor is selected from a group consisting of a slickline, a wireline, a coil tubing, a wired coil tubing, a string of drill pipe, and a string of wired drill pipe.   
     
     
         10 . A borehole fishing method, comprising:
 attaching, to a conveyor, a borehole fishing tool having a grapple;   inserting the borehole fishing tool attached to the conveyor into a borehole;   forming, using the grapple, a neutral position, of at least two metal springs to create space;   receiving, in the neutral position, a fish in between the at least two metal springs;   engaging, through a latching position in the grapple, a plurality of teeth of a slip profile on each of the at least two metal springs in the grapple to the fish in the borehole;   engaging, guided by the slip profile, the borehole fishing tool to the fish;   retracting the conveyor from the borehole; and   raising the borehole fishing tool and the fish uphole until out of the borehole.   
     
     
         11 . The borehole fishing method of  claim 10 ,
 wherein the conveyor is selected from a group consisting of a slickline, a wireline, a coil tubing, a wired coil tubing, a string of drill pipe, and a string of wired drill pipe.   
     
     
         12 . The borehole fishing method of  claim 10 , wherein the latching position further comprises:
 applying a force on the at least two metal springs in the grapple so as to compress the slip profile of each of the at least two metal springs.   
     
     
         13 . The borehole fishing method of  claim 12 , wherein the force is applied by the fish. 
     
     
         14 . The borehole fishing method of  claim 10 ,
 wherein each of the at least two metal springs are elastic.   
     
     
         15 . The borehole fishing method of  claim 10 ,
 arranging each of the at least two metal springs such that the slip profile attached thereto is opposite to and facing another slip profile attached to another of the at least two metal springs.   
     
     
         16 . The borehole fishing method of  claim 10  further comprising:
 selecting the conveyor from a group consisting of a slickline, a wireline, a coil tubing, a wired coil tubing, a string of drill pipe, and a string of wired drill pipe.