Casing Drilling Services

In casing drilling technology, there is no conventional drill string. For the drilling operation, the drilling crew use the casing string needed for production purposes. The drilling fluid (or mud) is pumped down through the casing, transports the cuttings to the surface, cools the bit and drives its motor. The mud flows through the annulus between the rock and the casing back up to the rig, where it is treated for re-use. While flowing back to the surface, the mud has an extremely positive lubricating effect and that is the reason why longer casing strings can be used in these casing drilling operations. Another advantage of this technology is that casing can be continually run, which saves a great deal of time.