IPC Definitions - January 01, 2012
E21B 47/008 - Definition
This group covers:
Processes or apparatus for collecting data about borehole equipment for lifting fluids to the surface, e.g. for the detection of the condition wherein the well fluid production rate is lower than the rate at which the pump withdraws fluid from the borehole.
Attention is drawn to the following places, which may be of interest for search:
Control of pumps | F04D 15/00, F04D 27/00 |