Reamer / guide interchangeable tubular shoe

Abstract

An interchangeable casing shoe for a wellbore is disclosed. The interchangeable casing shoe includes a cylindrical housing, a first engagement assembly mounted to an outer diameter of the cylindrical housing and selectively extendible between a recessed position and an extended position, and a second engagement assembly mounted within the cylindrical housing and configured to engage a running tool. The wellbore has a wellbore tubular having an internal diameter surface. When in the extended position, the first engagement assembly engages the internal diameter surface of the wellbore tubular. When deployed at depth in the wellbore, the running tool engages the second engagement assembly and selectively shifts the first engagement assembly into the recessed position releasing the casing shoe.

What is claimed: 
     
         1 . An interchangeable casing shoe for a wellbore, comprising:
 a casing shoe comprising a cylindrical housing;   a first engagement assembly mounted to an outer diameter of the cylindrical housing and selectively extendible between a recessed position and an extended position;   a second engagement assembly mounted within the cylindrical housing and configured to engage a running tool;   wherein the wellbore comprises a wellbore tubular, having an internal diameter surface;   wherein when in the extended position the first engagement assembly engages the internal diameter surface of the wellbore tubular;   wherein when deployed at depth in the wellbore the running tool engages the second engagement assembly and selectively shifts the first engagement assembly into the recessed position releasing the casing shoe.   
     
     
         2 . The interchangeable casing shoe of  claim 1 , wherein the casing shoe is a guide shoe comprising one of a rounded profile, a bull-nosed shape, and an eccentric shape. 
     
     
         3 . The interchangeable casing shoe of  claim 1 , wherein the casing shoe is a reamer shoe comprising one of a rounded profile, a bull-nosed shape, and an eccentric shape, with a plurality of cutting blades. 
     
     
         4 . The interchangeable casing shoe of  claim 1 , wherein the casing shoe is one selected from a group consisting of: a guide shoe and a reamer shoe, wherein the guide shoe and the reamer shoe are customized to fit the wellbore tubular. 
     
     
         5 . The interchangeable casing shoe of  claim 2 , wherein the casing shoe comprises:
 a float valve,   wherein the float valve is installed in the guide shoe to prevent backflow of fluid and to provide access to the wellbore for placement of cement.   
     
     
         6 . The interchangeable casing shoe of  claim 2 , wherein:
 the guide shoe comprises of at least one a circular port,   cement is pumped through the circular port and the guide shoe is cemented in place with the wellbore tubular.   
     
     
         7 . The interchangeable casing shoe of  claim 3 , wherein the reamer shoe comprises:
 a float valve,   wherein the float valve is installed in the reamer shoe to prevent backflow of fluid and to provide access to the wellbore for placement of cement.   
     
     
         8 . The interchangeable casing shoe of  claim 3 , wherein:
 the reamer shoe comprises of at least one a circular port,   wherein cement is pumped through the circular port and the reamer shoe is cemented in place with the wellbore tubular.   
     
     
         9 . The interchangeable casing shoe of  claim 3 , wherein the reamer shoe comprises:
 a motor-powered device used to rotate the reamer shoe.   
     
     
         10 . The interchangeable casing shoe of  claim 1 , wherein the cylindrical housing has a smaller outer diameter than an internal diameter of the wellbore tubular. 
     
     
         11 . The interchangeable casing shoe of  claim 1 , wherein the first engagement assembly is a no-go profile and a set of slips with a packer element. 
     
     
         12 . The interchangeable casing shoe of  claim 1 , wherein the second engagement assembly is a sliding sleeve with a set of lock dogs. 
     
     
         13 . The interchangeable casing shoe of  claim 1 , wherein:
 the running tool is configured to be conveyed into the wellbore through the wellbore tubular via a slick line system, and   the running tool comprises an outer diameter that is smaller than a internal diameter of the wellbore tubular.   
     
     
         14 . The interchangeable casing shoe of  claim 1 , wherein:
 the wellbore tubular is a casing.   
     
     
         15 . A method of interchanging a guide shoe fitted to a wellbore tubular with a reamer shoe when dictated by conditions in a wellbore, comprising:
 deploying a running tool at a depth in the wellbore;   engaging a second engagement assembly of the guide shoe that is connected to an internal diameter surface of a wellbore tubular;   selectively shifting, by the running tool, a first engagement assembly from an extended position to a recessed position, releasing the guide shoe;   retrieving the guide shoe from the wellbore and releasing the guide shoe from the running tool;   fitting the running tool with the reamer shoe and deploying the running tool to the depth within the wellbore;   anchoring the reamer shoe to the internal diameter surface of the wellbore tubular by shifting the first engagement assembly, via the running tool, from the recessed position to the extended position ; and   disengaging, by the running tool, the first engagement assembly thereby releasing the running tool.   
     
     
         16 . A method of interchanging a reamer shoe fitted to a wellbore tubular, with a guide shoe while at a bottom hole depth in a wellbore, comprising:
 deploying a running tool at the bottom hole depth in the wellbore;   engaging a second engagement assembly of the reamer shoe that is connected to an internal diameter surface of a wellbore tubular;   selectively shifting, by the running tool, a first engagement assembly from an extended position to a recessed position, releasing the reamer shoe;   retrieving the reamer shoe from the wellbore and releasing the reamer shoe from the running tool,   fitting the running tool with a guide shoe and deploying the running tool to the bottom hole depth within the wellbore;   anchoring the guide shoe to the internal diameter surface of the wellbore tubular by shifting the first engagement assembly, via the running tool, from the recessed position to the extended position; and   disengaging, by the running tool, the first engagement assembly thereby releasing the running tool.   
     
     
         17 . The method of  claim 15 , wherein:
 the running tool is deployed by one of a slickline system, a wireline system, a coil tubing system, or a drill pipe.   
     
     
         18 . The method of  claim 16 , wherein:
 The running tool is deployed by one of a slickline system, a wireline system, a coil tubing system, or a drill pipe.   
     
     
         19 . The method of  claim 15 , wherein:
 the second engagement assembly is at least one of a mechanical, a hydraulic, and an electric activation.   
     
     
         20 . The method of  claim 16 , wherein:
 the second engagement assembly is at least one of a mechanical, a hydraulic, and an electric activation.