Hydraulically actuated tool with electrical throughbore

Abstract

A bottom hole assembly includes a drill string, a bit coupled to an end of the drill string, a rotary steerable system coupled to the drill string above the bit, a hydraulically actuated tool assembly coupled to the drill string above the rotary steerable system, and an electrically controlled tool coupled to the drill string above the hydraulically actuated tool assembly and electrically coupled to the rotary steerable system. A method includes running a bottom hole assembly downhole, the bottom hole assembly including a drill bit, a rotary steerable system, an electrically controlled tool, and a hydraulically actuated tool assembly disposed between the rotary steerable system and the electrically controlled tool. The method includes cutting a formation with the drill bit, actuating the hydraulically actuated tool assembly, and maintaining an electrical connection between the rotary steerable system and the electrically controlled tool during the running, the cutting, and the actuating.

What is claimed: 
     
         1 . A tool assembly comprising:
 a tool body configured to connect with a drill string;   a mandrel disposed in the tool body;   a piston assembly disposed in the mandrel, the piston assembly having a throughbore and including a valve piston and a cam piston configured to reciprocate axially in the mandrel;   a spring member disposed in the tool body and configured to bias the piston assembly towards a first axial position; and   a tubular disposed in the tool body and the throughbore of the piston assembly, the tubular having a throughbore configured to carry an electrical wire.   
     
     
         2 . The tool assembly of  claim 1 , further comprising a first locking apparatus disposed at an upper end and a second locking apparatus disposed at a lower end, the first and second locking apparatus configured to secure the tubular within the tool assembly. 
     
     
         3 . The tool assembly of  claim 2 , wherein the first locking apparatus and the second locking apparatus each include a locking sleeve. 
     
     
         4 . The tool assembly of  claim 2 , wherein the first locking apparatus and the second locking apparatus each include a jam nut. 
     
     
         5 . The tool assembly of  claim 1 , wherein the tubular comprises a centralizer coupled to an outer surface of the tubular and extending radially therefrom. 
     
     
         6 . The tool assembly of  claim 5 , wherein a portion of the tubular radially adjacent the piston assembly is free of the centralizer. 
     
     
         7 . The tool assembly of  claim 1 , further comprising at least one reamer blade coupled to the tool body and configured to extend radially therefrom. 
     
     
         8 . A bottom hole assembly comprising:
 a drill string;   a bit coupled to an end of the drill string;   a rotary steerable system coupled to the drill string axially above the bit;   a hydraulically actuated tool assembly coupled to the drill string axially above the rotary steerable system; and   an electrically controlled tool coupled to the drill string axially above the hydraulically actuated tool assembly, the electrically controlled tool electrically coupled to the rotary steerable system.   
     
     
         9 . The bottom hole assembly of  claim 8 , wherein the electrically controlled tool is a measurement-while-drilling/logging-while-drilling (MWD/LWD) tool. 
     
     
         10 . The bottom hole assembly of  claim 8 , further comprising a reamer coupled to the drill string axially above the electrically controlled tool. 
     
     
         11 . The bottom hole assembly of  claim 8 , wherein the hydraulically actuated tool assembly comprises a tubular disposed in a central throughbore of the hydraulically actuated tool assembly and extending from proximate a first end of the hydraulically actuated tool assembly to proximate a second end of the hydraulically actuated tool assembly. 
     
     
         12 . The bottom hole assembly of  claim 11 , further comprising an electrical wire coupled at a first end to the rotary steerable system, extending through the tubular, and coupled at a second end to the electrically controlled tool. 
     
     
         13 . The bottom hole assembly of  claim 8 , wherein the hydraulically actuated tool assembly is a reamer. 
     
     
         14 . The bottom hole assembly of  claim 8 , wherein the hydraulically actuated tool assembly is a caliper measurement tool. 
     
     
         15 . The bottom hole assembly of  claim 8 , wherein the hydraulically actuated tool assembly is a stabilizer when in a deactuated mode and a reamer when in an actuated mode. 
     
     
         16 . A method comprising:
 running a bottom hole assembly downhole, the bottom hole assembly including a drill bit, a rotary steerable system, an electrically controlled tool, and a hydraulically actuated tool assembly disposed between the rotary steerable system and the electrically controlled tool;   cutting a formation with the drill bit;   actuating the hydraulically actuated tool assembly; and   maintaining an electrical connection between the rotary steerable system and the electrically controlled tool during the running, the cutting, and the actuating.   
     
     
         17 . The method of  claim 15 , wherein the maintaining the electrical connection between the rotary steerable system and the electrically controlled tool comprises running an electrical wire through a tubular disposed within the hydraulically actuated tool assembly and coupling the electrical wire to the rotary steerable system and the electrically controlled tool. 
     
     
         18 . The method of  claim 16 , further comprising stabilizing the tubular within the hydraulically actuated tool assembly with at least one centralizer. 
     
     
         19 . The method of  claim 15 , wherein the bottom hole assembly further includes a reamer disposed above the electrically controlled tool and wherein the hydraulically actuated tool assembly includes at least one radially actuated reamer blade, the method further comprising:
 dropping an activation ball into the bottom hole assembly and actuating the reamer;   cutting the formation with the reamer, the cutting the formation with the drill bit and the cutting the formation with the reamer forming a rathole between drill bit and the reamer;   deactuating the reamer and pulling the BHA upward to position the hydraulically actuated tool assembly proximate the top of the rathole;   activating the tool assembly; and   cutting the rathole with the at least one radially actuated reamer blade of the hydraulically actuated tool assembly,   wherein the electrical connection is maintained during the dropping, the cutting the formation with the reamer, the deactuating, the activating, and the cutting the rathole.   
     
     
         20 . A method comprising:
 running a bottom hole assembly downhole, the bottom hole assembly including a drill bit, a rotary steerable system, a hydraulically actuated reamer tool assembly, a measurement-while-drilling/logging-while-drilling (MWD/LWD) tool, and a reamer;   dropping an activation ball into the bottom hole assembly and actuating the reamer;   cutting a formation with the drill bit and the reamer, the cutting the formation forming a rathole between the drill bit and the reamer;   deactuating the reamer and pulling the BHA upward to position the reamer tool assembly proximate the top of the rathole;   activating the reamer tool assembly; and   cutting the rathole with the reamer tool assembly, the running, dropping, cutting the formation, deactuating, actuating, and cutting the rathole being performed while maintaining electrical connection between the rotary steerable system and the MWD/LWD tool.