Method and apparatus for directly controlling pressure and...

Method and apparatus for drill cuttings transfer

Method and apparatus for drilling optimum subterranean well bore

Method and apparatus for providing controlled force transference

Method and apparatus for removing cuttings

Method and arrangement for controlling feed in rock drilling

Method and arrangement for controlling percussion rock drilling

Method and device for drilling

Method and device for impact loosening of thread joints

Method and device for remote-controlling drill string equipment

Method and system for circulating a gas bubble from a well

Method and system for controlling an excavating apparatus

Method and system for controlling force in a down-hole...

Method and system for controlling the rotary speed stability of

Method and system for controlling well bore pressure

Method and system for controlling well fluid circulation rate

Method and system for detecting and identifying abnormal drillin

Method and system for predicting performance of a drilling...

Method and system for predicting performance of a drilling...

Method for aligning a feeding beam in a rock drilling equipment