专利检索 ap:("HALLIBURTON ENERGY SERVICES, INC.") AND inv:"PALMGREN III, Carl, Albert" 第 1 页

1.

发明公开
SENSING A ROTATION SPEED AND ROTATION DIRECTION OF A MOTOR SHAFT IN AN ELECTRIC SUBMERSIBLE PUMP POSITIONED IN A WELLBORE OF A GEOLOGICAL FORMATION 审中-公开

公开(公告)号：EP3864296A1

公开(公告)日：2021-08-18

申请号：EP18945112.3

申请日：2018-12-28

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： COURTWRIGHT, Tyler, Clay , ASHBAUGH, Ryan, Bridwell , CAMPBELL, Dustin, Bosworth , PALMGREN III, Carl, Albert

IPC分类号： F04D15/00 , F04D13/10 , E21B43/12