Selectable hole trimmer and methods thereof

Abstract

This disclosure presents a downhole device configured as a selectable hole trimmer. The selectable hole trimmer comprises an upper sleeve affixed inside a body via a stop. A charge sleeve is slidable inside the upper sleeve to provide a pressure to a pressurized volume. A catch sleeve is slidable inside the charge sleeve to align a bypass port and a return port with a drilling mud volume. An actuator is fluidly connected to the pressurized volume via a port. The actuator is configured to provide a pressure to a selectable hole cutter of the body via an actuation port in the transfer sleeve and actuate the selectable hole cutter piston of the selectable hole cutter to move relative to the body, wherein the cutter piston comprises one or more cutters. A manual controller configured to operate the actuator in response to a dropped activation ball.

What is claimed is: 
     
         1 . A downhole device configured as a selectable hole trimmer comprising:
 an upper sleeve affixed inside a body via a stop, wherein the body comprises a drilling mud volume;   a charge sleeve comprising a bypass port, wherein the charge sleeve is slidable inside the upper sleeve to provide a pressure to a pressurized volume;   a catch sleeve comprising a return port, wherein the catch sleeve is slidable inside the charge sleeve to align the bypass port and the return port with the drilling mud volume;   an actuator fluidly connected to the pressurized volume via a port, wherein the actuator is configured to provide a pressure to a selectable hole cutter of the body via an actuation port in the transfer sleeve and actuate the selectable hole cutter piston of the selectable hole cutter to move relative to the body, wherein the cutter piston comprises one or more cutters; and   a manual controller configured to operate the actuator in response to a dropped activation ball.   
     
     
         2 . The device of  claim 1 , wherein the cutter piston comprises a cutter blade, wherein the cutter blade comprises the one or more cutters. 
     
     
         3 . The device of  claim 1 , wherein the selectable hole cutter comprises one or more cutter pistons, wherein the one or more cutter pistons comprise a cutter blade and wherein the cutter blade comprises the one or more cutters. 
     
     
         4 . The device of  claim 1  comprising:
 a charge subassembly, wherein the charge subassembly comprises the upper sleeve, the charge sleeve, and the catch sleeve; and 
 a trimmer subassembly, wherein the transfer subassembly comprises a transfer sleeve and the selectable hole cutter. 
 
     
     
         5 . The device of  claim 1 , wherein the upper sleeve acts as an upper stop for the charge sleeve and/or the catch sleeve. 
     
     
         6 . The device of  claim 1 , wherein the upper sleeve is held in place with a stop at a lower end and a snap ring at an upper end. 
     
     
         7 . The device of  claim 1 , wherein an internal stop in the charge sleeve acts as a lower stop for the catch sleeve. 
     
     
         8 . The device of  claim 1 , wherein the catch sleeve is capable of moving to a lower position to provide the pressure through the activation ports. 
     
     
         9 . The device of  claim 1 , further comprising a detent ring disposed between the charge sleeve and the catch sleeve. 
     
     
         10 . The device of  claim 9 , wherein the detent ring is made of a metal, a polymer or a rubber. 
     
     
         11 . The device of  claim 9 , wherein the detent ring is made of a rubber. 
     
     
         12 . The device of  claim 9 , wherein the detent ring is made from a metal. 
     
     
         13 . The device of  claim 9 , wherein the detent ring holds the catch sleeve in a relative position to the charge sleeve. 
     
     
         14 . The device of  claim 1 , wherein the activation ball is made of a metal, a polymer or a rubber. 
     
     
         15 . The device of  claim 14 , wherein the activation ball is made of a metal. 
     
     
         16 . A method of using a downhole device configured as a selectable hole trimmer comprising:
 providing a drill bit a flow of drilling fluids;   lowering a selectable hole trimmer in a borehole;   dropping an activation ball to seal a seat in a charge sleeve, disengage a detent ring between the charge sleeve and a catch sleeve and allow the catch sleeve to move downward to a lower position within the charge sleeve; and   directing the flow of the drilling fluids from the charge sleeve through a bypass port into a drilling fluid volume and from the drilling fluid volume through a return port back into an interior of the charge sleeve to move the charge sleeve downward, wherein the charge sleeve forces hydraulic fluid through an activation port to a selectable hole cutter to activate a selectable hole cutter.   
     
     
         17 . The method of  claim 16 , further comprising:
 stopping the flow of the drilling fluids through the selectable hole trimmer to deactivate the selectable hole cutter and to move the charge sleeve and the catch sleeve upward.   
     
     
         18 . The method of  claim 16 , further comprising:
 stopping the flow of the drilling fluids through the selectable hole trimmer;   raising the selectable hole trimer in the borehole; and   draining drilling fluids above the actuation ball in the charge sleeve through a port into the drilling mud volume and from the drilling mud volume through a return port back into the interior of the charge sleeve and out of the selectable hole trimmer.