Invention Grant
- Patent Title: Linear drive system for downhole applications
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Application No.: US14502338Application Date: 2014-09-30
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Publication No.: US10056815B2Publication Date: 2018-08-21
- Inventor: Sebastian Tegeler , Steffen Toscher , Otto N. Fanini
- Applicant: BAKER HUGHES INCORPORATED
- Applicant Address: US TX Houston
- Assignee: BAKER HUGHES, A GE COMPANY, LLC
- Current Assignee: BAKER HUGHES, A GE COMPANY, LLC
- Current Assignee Address: US TX Houston
- Agency: Mossman, Kumar & Tyler, PC
- Main IPC: E21B4/04
- IPC: E21B4/04 ; H02K41/03 ; E21B4/18 ; H02K1/12

Abstract:
An apparatus for use in a borehole may include a rotor having at least one set of magnetic elements and a cylindrical stator having a winding flowing current in a direction transverse to a long axis of the stator. The polarity of each magnetic element of the rotor may be arranged to alternate along a long axis of the rotor. The stator may be in sliding engagement with the rotor and have a core formed at least partially of laminations aligned along a plane co-planar with the long axis of the stator. Energizing the winding principally causes relative sliding between the rotor and the stator. A method for performing an operation in a borehole includes forming a well tool having at least one linear motor as described above, conveying the linear motor into the borehole, and operating a well tool by activating the linear motor.
Public/Granted literature
- US20160090787A1 LINEAR DRIVE SYSTEM FOR DOWNHOLE APPLICATIONS Public/Granted day:2016-03-31
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