(under subclass 58) Processes comprising the step of moving the sample from the bottom of the borehole to the surface of the earth by entrainment in a fluid.
(1) Note. The mere step of transporting or carrying to the surface of cuttings by drilling fluid without a specific sampling step is not included. Such processes are classified in subclasses 65+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
66, for processes of drilling with fluid and treating the used fluid above ground to remove drill cuttings from the fluid.
