(under subclass 152.01) Subject matter comprising an apparatus or a method for determining a physical characteristic of a pump used (a) for circulating a fluid in
a borehole or (b) for circulating a fluid in a drilling operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168, for a process or an apparatus for making a determination of a characteristic of a pump.
SEE OR SEARCH CLASS
166, Wells,
54.1, for means separately pumping from plural sources within a well, subclasses 62, 68+, and 105+ for an eduction pump within a well, and subclass 101 for a pump for a well wherein the pump exerts an outward pressure.
417, Pumps, appropriate subclass for a pump inserted in a well, per se.
