The Mud-Shear Sub is a straightforward mud conditioning solution that requires no topside equipment and is especially effective during milling operations.
With the milling assembly run-in up to the penultimate stand, the system is installed just below the rotary table and the mud is simply pumped through the sub.
The easily configurable device delivers significant cost and time savings during the mud conditioning process, irrespective of flow rate and viscosity. It offers a better alternative to aligning topside conditioning equipment or the time lost waiting for the milling string to shear the mud unassisted.
Multiple choke and nozzle size options are available. For best results, it can be run in conjunction with the DAV MX™ Circsub for multiple mud shearing points and the additional benefit of being able to self-fill, bypass the section mill (protect knives), displace fluid quickly and boost annular velocity post milling.
