(under subclass 152.54) Subject matter wherein the determination of the physical characteristic of the borehole, the casing, or the drill rigging is made by measuring or detecting the point or points at which a drill pipe, casing, or tubing is stuck in a borehole traversing an earth formation.
SEE OR SEARCH CLASS
33, Geometrical Instruments, appropriate subclass for a determination of positions in a well bore, per se, and
302, and 304+ for well bore configuration determining, per se.
166, Wells,
255.1, for a comprehensive process wherein a determination of a position of unintentional motionlessness of a drill pipe, casing, or tubing within a borehole wherein more well detail than is necessary for perfecting the test is claimed.
340, Communications: Electrical, 854.2, for well bore telemetry wherein a location of a stuck tool is recorded.
