Sucker rod fishing tool

Abstract

A fishing tool for fishing sucker rods from a subterranean well. The tool is a top piece, a barrel piece and bottom piece that all thread together. One or more extender sections are added by unthreading the top piece from the barrel piece and threading the extender sections therebetween to effectively lengthen the barrel piece and increase its functionality. The bottom piece retains a curved cast metal slip movable within grooves milled internally into the body. A lower end of a side opening provided in the barrel piece is level with an upper shoulder of the slip when the slip is at its lowest position. Optionally, the bottom piece can be replaced with a bell, lip guide, mill shoe, or other types of tools and the top piece can be replaced by a prior art fishing tool or other tools.

1 . A sucker rod fishing tool for fishing sucker rod out of a well comprising:
 a top piece, said top piece provided with threads on its top end for threadable engagement with a means for moving the top piece into and out of a well,   a hollow barrel piece, said barrel piece provided with threads on its top end for threadable engagement with threads provided on a bottom end of said top piece, said barrel piece provided with a side opening,   a curved slip slidably captured within said hollow barrel piece so that said slip can move longitudinally within the barrel piece,   a bottom end of the side opening in the barrel piece being level with a top shoulder provided on the slip when the slip is located at its lowest position in the barrel piece so that an object being lifted by the tool will engage the top shoulder of the slip and the bottom end of the side opening in the barrel piece resulting in a downwardly exerted pulling force on the tool, and   at least one extender section, each extender section provided with threads on its top end and on its bottom end for threadable engagement between the top piece and the barrel piece as a means of effectively lengthening the barrel piece by disengaging the top piece from the barrel piece and threading one or more extender sections between the top piece and barrel piece.   
   
   
       2 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 said barrel piece provided with at least two parallel grooves milled into its interior wall; ears provided on said slip; said ears slidably retained within the parallel grooves as a means of movably retaining the slip within the barrel piece.   
   
   
       3 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 2  wherein said grooves and said ears on the slip are both provided with a rounded radius to reduce stress on the barrel piece. 
   
   
       4 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 said top piece provided with a channel therethrough for allowing liquids to pass through the top piece as the top piece is moved into and out of a well.   
   
   
       5 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 a bottom end of said barrel piece provided with an internal bevel to aid in admitting a sucker rod into the barrel piece, and a weld provided at a bottom end of the grooves to retain the slip therein.   
   
   
       6 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 a bell removably attached to the bottom end of said barrel piece via threads on its top end that threadably engage threads provided on a bottom end of said barrel piece, and said a bottom end of said bell provided with an internal bevel to aid in admitting a sucker rod into the barrel piece.   
   
   
       7 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 a bottom edge of the slip provided with a bevel on its internal face, said bevel having a half moon configuration to provide for smooth engagement of the slip with a sucker rod as the rod enters the barrel piece and pushes the slip upward.   
   
   
       8 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 a top end of said slip provided with teeth for engaging a sucker rod to prevent rotational slippage therebetween.   
   
   
       9 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 a bottom piece, said bottom piece provided with threads on its top end for threadable engagement with threads provided on a bottom end of said barrel piece, and said a bottom end of said bottom piece provided with an internal bevel to aid in admitting a sucker rod into the bottom piece.   
   
   
       10 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 9  further comprising:
 said bottom end of said bottom piece provided with a lip guide to aid in admitting a sucker rod into the bottom piece.   
   
   
       11 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 9  wherein the top piece is made from a single solid piece of metal, the barrel piece is made from a single piece of metal tube, the bottom piece is made from a single piece of metal tube, and the slip is made from cast metal. 
   
   
       12 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  wherein the slip is made from cast metal. 
   
   
       13 . A sucker rod fishing tool for fishing sucker rod out of a well according to  claim 1  further comprising:
 a hollow adaptor securing between the hollow barrel piece and said at least one extender section.