.~.~ Determining position of earth zone or marker {1}
254.2
.~.~.~ Well logging
DEFINITION
Classification: 166/254.2
Well logging:
(under subclass 254.1) Determining position of earth zone which includes the step(s) of using a wireline operated device to traverse the formation.
(1) Note. The logging step must be explicitly recited in a claim for classification in this subclass and not left to inference. The position of a portion of the earth is almost always determined at some stage in processes involving wells.
SEE OR SEARCH CLASS
73, Measuring and Testing,
152.02+, for formation logging.
324, Electricity: Measuring and Testing,
323+, for a method or apparatus for geophysical surface or subsurface in situ.
