bottom-hole separator

bottom-hole separator

[′bäd·əm ¦hōl ′sep·ə‚rād·ər]
(petroleum engineering)
A device designed to separate crude oil and natural gas at the bottom of the well in order to increase the volumetric efficiency of the pumping equipment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.