• CRT 500-14 Casing Running Tool

    The Casing Running Tool (CRT) introduces step change in the way casing is run and is a safer, faster, and more efficient method for casing operations.
    Description

    Tool, where applicable, updated in accordance with governing API standards

    The Casing Running Tool (CRT) introduces a step change in the way casing is run today. By combining the functionality of field proven tools such as the top drive, Flush Mounted Spider (FMS), Fill-up and Circulation Tool and Hydraulic Single Joint Elevator, casing operations are now safer, faster, and more efficient. The CRT, connected directly to the top drive main shaft, simultaneously hoists and lowers casing, spins-in and makes up the casing connection. The CRT enables the driller to rotate, reciprocate, and circulate the casing string.

    Safety:  Eliminates stabbing-board operations, less manual handling in the V-door and fewer safety hazards.  Power casing tong operations and work platforms have been removed, allowing for better ergonomics and work space around the well-center.
    Economics:  A reduced casing crew can run the casing, minimizing stand-by costs associated with weather or problematic well conditions.  The CRT pipe weight compensator substantially reduces the risk of damage due to cross-threading.  Utilizing the top drive to control make-up reduces thread damage during the complete make-up cycle.
    Well Improvements:  Greatly increases the possibility of setting casing at target depth, due to the ability to push, circulate and rotate the casing simultaneously.  Reduces the risk of stuck casing.  Enables ability to pressure test each connection.
    Efficiency:  Less equipment to rig-up; the CRT combines a single joint elevator, rigid link hoist and stabbing assembly, fill-up and circulation tool, and compensator in one assembly.  Single load-path design eliminates links.   The driller determines and controls the running/tripping speed, spin-in and make-up torques.  When running mixed strings, size of components can be changed within minutes through the twist lock design.

    Features/Benefits

    Features CRT Compensator
    •  Employs a patented cushioned weight compensator which balances out the weight of CRT
    • The CRT has a patented air operated compensator to enable soft stabbing, allows for thread compensation and minimizes the risk of thread damage
    CRT Pipe Sensor
    • The pipe sensor detects the casing coupling so slips will set automatically at the correct position, ensuring casing connection integrity
    CRT Fill-up and Circulation Tool
    • Fill-up tool enables fast change out of seal and guide elements when mixed strings are run
    • Prevents spills of drilling fluids
    • Reduces the risk of environmental incidents
    • The new design Fill up and Circulate tool (FAC-tool) greatly reduces downtime due to FAC tool issues
    Picking Up a Joint from the V-door
    • The link tilt assembly will enable the CRT to pick up a new joint from the V-door.
    • Maximum horizontal pick up 21 ft for the CRT500 with extended link tilt arms
    • New design UX type hydraulic pick up elevator (9s” - 14”) allows for simple and safe pick up and latch of new joint

    Specifications

     

    Description 

    CRT-500 

    API 8C Hoist Rating [sTon/Ton] 500 / 454 
    Casing Size  4½" to 14" 
    Fill-Up and Circulation 4½" - 14.00" circulation and fill-up (fill-up, circulate and recovery over the full range) 
    Maximum Mud Circulation Pressure [psi/kPa] up to 5,000 / 34,500 (size dep.) 
    Rotational speed [rpm] 0-20 
    Weight (fully dressed, typical) [lbs/kg] 17,636 / 8,000 
    Maximum Push Down Force [lbs/kg] 20,000 / 9,072 (static) 
    Ambient Temperature Range [C] -20° to +40° 
    Maximum Torque [ft.lbs@psi / Nm@kPa ]  55,000 / 74,540 
    Shaft connection   7.750”OD 7s" API Reg. RH (box) 8.625”OD 
    Diameter of CRT body 40" 
    Width of CRT assembly  53.5" 
    Height  146.4" (compensator mid stroke, from shaft shoulder to CRT bell guide) 
    Height 166.8" (link arm fully in, from shaft shoulder to UX) 
    Compensator capacity@90 psi air supply [lbs / kg] 13,125 / 5,950 
    Link tilt tilt-out distance [ft / m] 21' / 6.4