Removing wellbore completion components in a wellbore

Abstract

A bottom hole assembly (BHA) includes a top sub-assembly configured to couple to a downhole conveyance to move into a wellbore that includes completion components secured in the wellbore; a drill bit configured to drill out and remove a first portion of a subset of the completion components; and an expandable reamer including a cutting assembly and configured to adjust between a retracted position in which a diameter of the cutting assembly is less than a diameter of a bore through at least one of the completion components and an activated position in which the diameter of the cutting assembly is greater than the diameter of the bore. The expandable reamer is further configured to remove a second portion of the subset of the completion components in the activated position.

1 . A method for drilling out a wellbore completion, comprising:
 running a downhole tool on a downhole conveyance from a terranean surface into a wellbore that comprises a plurality of completion components secured in the wellbore, the downhole tool comprising a bottom hole assembly that comprises a drill bit and an expandable reamer that comprises a cutting assembly;   operating the drill bit to drill out and remove a first portion of a subset of the plurality of completion components coupled to a wellbore liner installed in the wellbore;   adjusting the expandable reamer from a retracted position in which a diameter of the cutting assembly is: (i) less than a diameter of a bore through at least one of the plurality of completion components, and (ii) substantially the same as a diameter of the drill bit, to an activated position in which the diameter of the cutting assembly is: (i) greater than the diameter of the bore through the at least one of the plurality of completion components, and (ii) less than a diameter of the wellbore liner;   operating the expandable reamer in the activated position to remove a second portion of the subset of the plurality of completion components;   subsequently to operating the expandable reamer in the activated position to remove the second portion of the subset of the plurality of completion components, adjusting the expandable reamer from the activated position to the retracted position; and   running the drill bit and the expandable reamer in the retracted position through the bore of the at least one of the plurality of completion components.   
     
     
         2 . The method of  claim 1 , further comprising running the downhole tool from the terranean surface through the wellbore to a depth that is uphole of the plurality of completion components with the expandable reamer in the retracted position. 
     
     
         3 . The method of  claim 1 , wherein the cutting assembly comprises a plurality of expandable cutters. 
     
     
         4 . The method of  claim 1 , wherein the at least one of the completion components comprises an open hole packer. 
     
     
         5 . The method of  claim 4 , wherein the subset of the plurality of completion components comprises a cement valve and a liner float. 
     
     
         6 . The method of  claim 5 , wherein the first portion comprises cement, and the second portion comprises at least a part of the cement valve or the liner float. 
     
     
         7 . The method of  claim 1 , wherein the subset of the plurality of completion components are coupled to a tubular that is installed in the wellbore. 
     
     
         8 . The method of  claim 7 , wherein the tubular comprises a wellbore liner. 
     
     
         9 . The method of  claim 1 , wherein running the downhole tool on the downhole conveyance comprises running the downhole tool on a tubular work string that comprises drill pipe. 
     
     
         10 . The method of  claim 1 , wherein adjusting the expandable reamer from the retracted position to the activated position comprises at least one of:
 mechanically adjusting the expandable reamer from the retracted position to the activated position;   electrically adjusting the expandable reamer from the retracted position to the activated position; or   hydraulically adjusting the expandable reamer from the retracted position to the activated position.   
     
     
         11 . A downhole bottom hole assembly (BHA), comprising:
 a top sub-assembly configured to couple to a downhole conveyance to move the BHA from a terranean surface into a wellbore that comprises a plurality of completion components coupled to a wellbore liner installed in the wellbore;   a drill bit coupled to the top assembly and configured to drill out and remove a first portion of a subset of the plurality of completion components; and   an expandable reamer coupled to the top sub-assembly uphole of the drill bit, the expandable reamer comprising a cutting assembly and configured to adjust between a retracted position in which a diameter of the cutting assembly is: (i) less than a diameter of a bore through at least one of the plurality of completion components, and (ii) substantially the same as a diameter of the drill bit, and an activated position in which the diameter of the cutting assembly is: (i) greater than the diameter of the bore through the at least one of the plurality of completion components, and (ii) less than a diameter of the wellbore liner,   wherein the expandable reamer is further configured to remove a second portion of the subset of the plurality of completion components in the activated position and return to the retracted position, each of the drill bit and the expandable reamer in the retracted position configured to pass through the bore of the at least one of the plurality of completion components.   
     
     
         12 . The downhole BHA of  claim 11 , wherein the downhole tool is configured to run from the terranean surface through the wellbore to a depth that is uphole of the plurality of completion components with the expandable reamer in the retracted position. 
     
     
         13 . The downhole BHA of  claim 11 , wherein the cutting assembly comprises a plurality of expandable cutters. 
     
     
         14 . The downhole BHA of  claim 11 , wherein the at least one of the completion components comprises an open hole packer. 
     
     
         15 . The downhole BHA of  claim 14 , wherein the subset of the plurality of completion components comprises a cement valve and a liner float. 
     
     
         16 . The downhole BHA of  claim 15 , wherein the first portion comprises cement, and the second portion comprises at least a part of the cement valve or the liner float. 
     
     
         17 . The downhole BHA of  claim 11 , wherein the subset of the plurality of completion components are configured to couple to a tubular that is installed in the wellbore. 
     
     
         18 . The downhole BHA of  claim 17 , wherein the tubular comprises a wellbore liner. 
     
     
         19 . The downhole BHA of  claim 11 , wherein the downhole conveyance comprises a tubular work string that comprises drill pipe. 
     
     
         20 . The downhole BHA of  claim 11 , wherein the expandable reamer is configured to adjust from the retracted position to the activated position by at least one of:
 a mechanical adjustment of the expandable reamer from the retracted position to the activated position;   an electrical adjustment of the expandable reamer from the retracted position to the activated position; or   a hydraulic adjustment of the expandable reamer from the retracted position to the activated position.