The McCoy Casing Running Tool (DWCRT) by McCoy is a mechanically operated Casing Running Tool that attaches to the Top Drive quill and uses controlled movements of the Top Drive to rotate and reciprocate the Casing for makeup/breakout operations, hoisting, as well as drilling with casing and cementing operations. Using this tool displaces the need for a tong, fill and circulating equipment, as well as conventional hoisting elevators.
DWCRT represents a new generation of Casing Running Tools. It is a mechanical tool with modular design which meets design requirements of the API 8C standard. The DWCRT is designed to make up Casing, run it in the well, and provide rotation, reciprocation, and circulation. Minimal Top Drive set down weight is required to activate the tool. The compensating locking mechanism allows Slips to be set with low torque with easy release and the ability to achieve high torque for making Casing joints.
These mechanically operated tools are both simple to operate and simple to maintain. The DWCRT was developed to make-up, rotate, reciprocate, fill, take flow-back, circulate and drill while running casing with a top drive. The DWCRT is designed to pick up, screw and torque the casing up to the string and run the string into the well while enabling rotating, reciprocating and circulating operations to be conducted on-the-fly. The DWCRT reduces the tools and men needed to run casing compared to conventional techniques. The DWCRT allows the operator to reciprocate, rotate, and circulate simultaneously to help improve efficiency when running casing. The built-in compensator allows casing travel during thread make-up. The tool’s locking mechanism allows the tool to be set and released with minimal torque and eliminates the need for any top drive set-down weight. One actuator head is used for 4-1/2″-20″ casing with some configurations having as few as 50 parts. The modular design provides maximum versatility while keeping operating cost and inventory low. These key features make the DWCRT the most versatile CRT on the market.
Features:
• Modular Design
• Built-in Compensator
• Large Casing Weight Range
• Large Gripping Area
• Easy “Unset” Feature
• Locking Mechanism
• Mechanical Actuation
Benefits:
• Same Head Assembly used for different casing sizes results in fewer tools purchased for your fleet
• Thread compensated during make-up No set down weight to activate slips
• Minimal inventory and reduced chance of error
• Higher load rating Less casing damage
• Allows tool to be released without breaking top drive connection
• High casing make-up torque Low slip break-out torque
• No hydraulics or air needed to operate
The ability to handle a wide range of mandrels (4.5” to 26”) with just one tool has several benefits:
• A larger range of casing sizes can be accommodated
• Significant inventory and spare parts cost are reduced
• Minimal cost for additional sizes added to a fleet
• Flexibility on inventory（2022-09-20）