iCWD is an intelligent circulating sub enabling the driller to treat losses, place cement plugs or improve hole cleaning without the need to pull out of hole, saving expensive rig time. Smart Electronics and sensors enable operator to run multiple tools in same string spaced out as required with each controlled and activated independently into any mode in any order through Agile Activation command sent from surface. 

iCWD provide full bore mechanical access through the tool, can be placed anywhere in the drilling string and does not require mechanical access or a drop ball to operate. iCWD design is based on a remotely controlled 3-way ball valve system enabling driller to command the tool in any of the special modes, Bypass, Hole Cleaning, or Isolation modes, in addition to the default drilling mode.