Invention Grant
- Patent Title: Pipe in pipe BHA electric drive motor
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Application No.: US14371061Application Date: 2012-01-11
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Publication No.: US09752385B2Publication Date: 2017-09-05
- Inventor: Richard Thomas Hay , Keith E. Holtzman
- Applicant: Richard Thomas Hay , Keith E. Holtzman
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Baker Botts L.L.P.
- Agent Alan Bryson
- International Application: PCT/US2012/020929 WO 20120111
- International Announcement: WO2013/105952 WO 20130718
- Main IPC: E21B4/04
- IPC: E21B4/04 ; E21B17/00 ; E21B17/02

Abstract:
A pipe in pipe electric motor assembly comprising: a drilling string comprising an inner pipe and an outer pipe and an electric motor; wherein the electric motor is provided with power supplied by the inner pipe and the outer pipe acting at least as conductors and associated methods.
Public/Granted literature
- US20140326509A1 PIPE IN PIPE BHA ELECTRIC DRIVE MOTOR Public/Granted day:2014-11-06
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