Description / Application
The Bilco swivel tool is used to isolate the skinny portion of a tapered work string from potentially damaging torque. It is generally run above the circulating tool on small liner applications. Anticipated drilling below this tool must be carefully assessed prior to placing it in the work string since string rotation cannot be transmitted through this tool.
This tool is placed in the work string when torsional concerns exist. The Bilco swivel tool has a 150-ton load rating, which is sufficient for most tapered string application. It is recommended that PBTD be achieved and there is no anticipated drilling required below this tool. The work string above it is fully rotational and damaging torque below is eliminated.