Retrieval tool and methods of use

Abstract

A retrieval tool may include a body having a first end portion and a second end portion. A protrusion may extend laterally from the body proximate the second end portion of the body. The protrusion may have an engaging surface, two opposing side surfaces, and an outer surface. A path of fluid communication may extend from the first end portion of the body, through the body and the protrusion, to an engaging surface of the protrusion. A method for moving a downhole tool in a wellbore may include running a retrieval tool into a wellbore and pumping fluid to the retrieval tool. The retrieval tool may be engaged with the downhole tool, which may cause a path of fluid communication to experience a change in fluid pressure.

What is claimed is: 
     
         1 . A retrieval tool, comprising:
 a body having a first end portion and a second end portion;   a protrusion extending laterally from the body, the protrusion including an engaging surface; and   at least one bore defining a path of fluid communication extending from the first end portion of the body to the engaging surface of the protrusion.   
     
     
         2 . The retrieval tool of  claim 1 , the protrusion further including two opposing side surfaces and an outer surface, a distance between the two opposing side surfaces being greater proximate the outer surface than proximate the body. 
     
     
         3 . The retrieval tool of  claim 1 , the protrusion extending laterally from the second end portion of the body. 
     
     
         4 . The retrieval tool of  claim 1 , the at least one bore including an axial bore extending at least partially through the body from the first end portion toward the second end portion. 
     
     
         5 . The retrieval tool of  claim 1 , further comprising:
 a seal configured to obstruct flow out of the at least one bore.   
     
     
         6 . The retrieval tool of  claim 1 , the at least bore including at least one lateral bore extending from the path of fluid communication to an outer surface of the body. 
     
     
         7 . The retrieval tool of  claim 1 , the at least one bore including a radial bore extending at least partially into the protrusion. 
     
     
         8 . The retrieval tool of  claim 7 , the at least one bore including an axial bore in the protrusion and extending at least partially from the radial bore to the engaging surface of the protrusion. 
     
     
         9 . The retrieval tool of  claim 1 , the path of fluid communication being configured to be at least partially obstructed when the protrusion engages a corresponding slot in a downhole tool. 
     
     
         10 . A retrieval tool, comprising:
 a body having at least one bore extending axially therein; and   a protrusion extending laterally from the body, the protrusion having an engaging surface in fluid communication with the at least one bore of the body.   
     
     
         11 . The retrieval tool of  claim 11 , the engaging surface of the protrusion being sloped, and an angle between the engaging surface and the central longitudinal axis being from 20° to 85°. 
     
     
         12 . The retrieval tool of  claim 11 , the engaging surface of the protrusion being curved, and a radius of curvature of the engaging surface being from 0.5 cm to 10 cm. 
     
     
         13 . The retrieval tool of  claim 10 , the at least one bore including a first axial bore extending through at least a portion of the body, and a radial bore extending from the axial bore into the protrusion, the protrusion further including a second axial bore from the radial bore to the engaging surface. 
     
     
         14 . The retrieval tool of  claim 13 , further comprising:
 a path of fluid communication extending through the first axial bore, the radial bore, and the second axial bore.   
     
     
         15 . The retrieval tool of  claim 10 , the protrusion including a bore extending to the engaging surface, the bore being configured to be at least partially obstructed when the protrusion engages a corresponding slot in a deflection member. 
     
     
         16 . A method of moving a downhole tool, comprising:
 running a retrieval tool into a wellbore, the retrieval tool including:
 a body having a first end portion and a second end portion; and 
 a protrusion extending laterally from the body proximate the second end portion, a path of fluid communication extending from the first end portion of the body, through the body and the protrusion, to an engaging surface of the protrusion; 
   flowing fluid into the body of the retrieval tool and at least partially through the path of fluid communication; and   engaging the protrusion with a downhole tool within the wellbore, wherein engaging the protrusion with downhole tool includes causing a pressure change in the fluid being flowed into the body of the retrieval tool.   
     
     
         17 . The method of  claim 16 , wherein engaging the protrusion with the downhole tool includes engaging the engaging surface of the protrusion with an upper surface of the downhole tool to at least partially obstruct the path of fluid communication. 
     
     
         18 . The method of  claim 16 , wherein a magnitude of the pressure change in the fluid being flowed into the body of the retrieval tool is between 100 kPa and 5000 kPa. 
     
     
         19 . The method of  claim 16 , wherein causing the pressure change includes increasing a pressure in the fluid being flowed into the body of the retrieval tool. 
     
     
         20 . The method of  claim 18 , further comprising:
 orienting the retrieval tool such that the protrusion is aligned with a slot in the downhole tool.