Inventor
HEBERT DOUGLAS
US3 patents
Patents
3 patentsUS10385663B2Aug 20, 2019
Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filter
WEATHERFORD TECH HOLDINGS LLC7 citations79
US10450847B2Oct 22, 2019
Subsurface reciprocating pump for gassy and sandy fluids
WEATHERFORD TECH HOLDINGS LLC2 citations67
US11255171B2Feb 22, 2022
Method of pumping fluid from a wellbore by a subsurface pump having an interior flow passage in communication with a fluid chamber via a filter positioned in a side wall of a plunger
WEATHERFORD TECH HOLDINGS LLC0 citations57