Systems and methods for sidetracking operations

Abstract

A bottomhole assembly for performing a sidetracking operation in a casing of a wellbore. A fluid intensifier is configured to receive fluid and configured to increase a pressure of the fluid. A fluid jetting nozzle is associated with a body of the bottomhole assembly. A fluid jetting nozzle is fluidly coupled to the fluid intensifier and is configured to receive pressurized fluid from the fluid intensifier. A fluid jetting nozzle is configured to cut a window into the casing via the pressurized fluid. A side arm is movable between a closed position wherein the side arm is retracted and a guiding position wherein the side arm is extended. The side arm is configured to contact the casing in the guiding position to guide the body within the casing. A hook is configured to couple to the cut window and remove the cut window from the casing.

What is claimed is: 
     
         1 . A bottomhole assembly for performing a sidetracking operation in a casing of a wellbore, the assembly comprising:
 a body;   a fluid intensifier configured to receive fluid and configured to increase a pressure of the fluid;   a fluid jetting nozzle associated with the body, the fluid jetting nozzle being fluidly coupled to the fluid intensifier and configured to receive pressurized fluid from the fluid intensifier, the fluid jetting nozzle configured to cut a window into the casing via the pressurized fluid;   a side arm movable between a closed position wherein the side arm is retracted and a guiding position wherein the side arm is extended, the side arm configured to contact the casing in the guiding position to guide the body within the casing; and   a hook disposed on the body and configured to couple to the cut window and remove the cut window from the casing.   
     
     
         2 . The assembly of  claim 1 , wherein an end of the body is removably coupled to a guiding profile. 
     
     
         3 . The assembly of  claim 1 , further comprising a drilling jar disposed within the body, the drilling jar configured to generate an impact force onto the hook when activated. 
     
     
         4 . The assembly of  claim 1 , further comprising a power supply operatively coupled to the fluid intensifier and configured to operatively drive the fluid intensifier. 
     
     
         5 . The assembly of  claim 1 , further comprising:
 an abrasive material supply; and   a mixing chamber fluidly coupled to the fluid intensifier and fluidly coupled to the fluid jetting nozzle, the mixing chamber configured to:   receive abrasive material from the abrasive material supply,   receive the pressurized fluid from the fluid intensifier,   mix the pressurized fluid and the abrasive material, and   provide the mixed pressurized fluid to the fluid jetting nozzle.   
     
     
         6 . The assembly of  claim 1 , wherein the fluid jetting nozzle is disposed on a lower end of the body. 
     
     
         7 . The assembly of  claim 1 , wherein the hook comprises a plurality of drills movable between a retracted position wherein the plurality of drills are retracted within the body and a retrieval position wherein the plurality of drills are extended, the plurality of drills configured to drill into the window to remove the window from the casing. 
     
     
         8 . The assembly of  claim 1 , further comprising a second side arm movable between the closed position wherein the second side arm is retracted and the guiding position wherein the second side arm is extended, the second side arm configured to contact the casing in the guiding position to guide the bottomhole assembly within the casing, wherein:
 a base portion of the side arm is positioned on a first side of the body,   a base portion of the second side arm is positioned on a second side of the body, and   the second side arm and the side arm co-operate to position the body within the casing.   
     
     
         9 . The assembly of  claim 8 , wherein the hook is positioned on the first side of the body. 
     
     
         10 . A method for performing a sidetracking operation in a casing of a wellbore, the method comprising:
 guiding a body of a bottomhole assembly within the casing via a side arm extending from the body in contact with the casing;   descending the body to a cutting depth, the cutting depth being a predetermined depth within the casing for performing the sidetracking operation;   operatively driving a fluid intensifier of the bottomhole assembly to a power supply of the bottomhole assembly;   increasing a pressure of a fluid in the fluid intensifier;   cutting a window into the casing via a fluid jetting nozzle associated with the body, the fluid jetting nozzle being fluidly coupled to the fluid intensifier and configured to receive pressurized fluid from the fluid intensifier; and   coupling a hook disposed on the body into the cut window and removing the cut window from the casing.   
     
     
         11 . The method of  claim 10 , further comprising:
 removably coupling a guiding profile to a lower end of the body; and   removably coupling the guiding profile to the casing and removably decoupling the guiding profile from the lower end .   
     
     
         12 . The method of  claim 10 , further comprising programming a cutting path of the fluid jetting nozzle. 
     
     
         13 . The method of  claim 10 , further comprising operatively coupling a telemetry system to the body, the fluid jetting nozzle, the power supply, and the fluid intensifier. 
     
     
         14 . The method of  claim 10 , further comprising:
 providing abrasive material from an abrasive material supply disposed in the bottomhole assembly to a mixing chamber disposed in the bottomhole assembly;   providing the pressurized fluid from the fluid intensifier to the mixing chamber;   mixing the pressurized fluid and the abrasive material in the mixing chamber, and   providing the mixed pressurized fluid to the fluid jetting nozzle.   
     
     
         15 . The method of  claim 10 , further comprising generating an impact force by activating a drilling jar disposed in the body onto the hook. 
     
     
         16 . The method of  claim 10 , wherein operatively coupling the hook to the cut window is performed via a plurality of drills, the plurality of drills being movable between a retracted position wherein the plurality of drills are retracted within the body and a retrieval position wherein the plurality of drills are extended. 
     
     
         17 . The method of  claim 10 , further comprising guiding the body within the casing via a second side arm configured to contact the casing, wherein:
 a base portion of the side arm is positioned on a first side of the body,   a base portion of the second side arm is positioned on a second side of the body, and   the second side arm and the side arm co-operate to position the body within the casing.   
     
     
         18 . A bottomhole assembly for performing a sidetracking operation in a casing of a wellbore, the assembly comprising:
 a body;   a fluid intensifier;   a fluid jetting nozzle associated with the body;   a side arm;   a hook disposed on the body; and   a telemetry system, wherein: 
 the fluid intensifier is configured to receive fluid and is configured to increase a pressure of the fluid; 
 the fluid jetting nozzle is fluidly coupled to the fluid intensifier and is configured to receive pressurized fluid from the fluid intensifier, 
 the side arm is movable between a closed position wherein the side arm is retracted and a guiding position wherein the side arm is extended, the side arm is configured to contact the casing in the guiding position to guide the body within the casing; and 
 the telemetry system is communicatively coupled to the body, to the fluid intensifier, to the fluid jetting nozzle, and to the side arm, the telemetry system configured to communicate with: 
 the body to descend the body to a cutting depth, the cutting depth being a predetermined depth within the casing for performing the sidetracking operation, 
 the fluid jetting nozzle to cut a window into the casing via the pressurized fluid; and 
 the hook to couple to the cut window and remove the cut window from the casing. 
 
   
     
     
         19 . The assembly of  claim 18 , wherein the telemetry system is communicatively coupled to a drilling jar disposed within the body, and wherein the telemetry system communicates with the drilling jar to generate an impact force onto the body. 
     
     
         20 . The assembly of  claim 18 , wherein the telemetry system is communicatively coupled to an abrasive material supply and to a mixing chamber fluidly coupled to the fluid intensifier and fluidly coupled to the fluid jetting nozzle, and wherein the telemetry system communicates with the mixing chamber to:
 receive abrasive material from the abrasive material supply,   receive the pressurized fluid from the fluid intensifier,   mix the pressurized fluid and the abrasive material, and   provide the mixed pressurized fluid to the fluid jetting nozzle.