Casing Drive System™ (CDS™)
Reduce risks normally associated with casing running by adding an automated Casing Drive System™ (CDS™) to ensure casing gets to bottom safely and efficiently.
The Canrig® CDS™ is an adaptive and powerful casing running tool that serves many uses throughout casing operations. Whether the tool is used for an entire run, used for making up connections, as a fill-up tool, reaming casing, or just on stand-by in case of stuck pipe, the CDS™ can benefit any casing operation.
The CDS™ reduces the manpower required on the rig floor and in the derrick by replacing conventional equipment, such as the manual single joint elevator, and by utilizing its integrated link-tilt system which incorporates extendable bails and hydraulic single joint elevators. This enables casing to be picked up at the V-door. An internal CDS™ tool applies grapples to the inside of casing to make up connections, and the external tool applies dies to the outside of the casing. The link-tilt system then positions the casing joint over the hole and supports the casing while lowering the CDS™ and top drive, eliminating the need for unnecessary manual pipe-handling on the rig floor.
Once the connection is made up, circulation can be initiated, and the CDS™ may manipulate the entire string of casing. When used with a slip/spider assembly, the CDS™ interlock eliminates the chance of dropping the string in the wellbore by preventing the CDS™ from releasing the pipe until the slips are set.
The CDS™ is designed with packer cups which allow it to be utilized as a fill-up tool until it is necessary to rotate the casing to bottom. This saves time and also eliminates the danger of rigging up stabbing boards and having stabbers in the derrick.
- Ability to simultaneously rotate and reciprocate enables the operator to make up casing, reach bottom in tortuous wellbores, and improve cementation
- Eliminates and/or works in conjunction with conventional casing running equipment (i.e. power tongs, traveling rig elevators, top drive, and casing fill up tool)
- Many CDS™ configurations and ratings ensure compatibility with various rigs for conventional casing running and casing while drilling operations
- The utilization of the link tilt system and automated hands-free operation greatly reduces the exposure to unnecessary risks and improves rig safety
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