公开(公告)号：US10056815B2

公开(公告)日：2018-08-21

申请号：US14502338

申请日：2014-09-30

Applicant: BAKER HUGHES INCORPORATED

Inventor： Sebastian Tegeler ,  Steffen Toscher ,  Otto N. Fanini

IPC: E21B4/04 ,  H02K41/03 ,  E21B4/18 ,  H02K1/12

CPC classification number: H02K41/031 ,  E21B4/04 ,  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.

公开(公告)号：US20170170702A1

公开(公告)日：2017-06-15

申请号：US14965603

申请日：2015-12-10

Applicant: Baker Hughes Incorporated

Inventor： Eckard Scholz ,  Matthias Gatzen ,  Sebastian Tegeler

IPC: H02K5/128 ,  F01D15/08 ,  E21B34/06 ,  F01D15/10 ,  E21B41/00 ,  E21B43/12

CPC classification number: H02K5/1285 ,  E21B34/066 ,  E21B41/0085 ,  E21B43/128 ,  F01D15/08 ,  F01D15/10 ,  H02K21/22 ,  H02K2005/1287

Abstract: A downhole system for use in a wellbore in a subterranean formation includes an electromechanical motor or generator. The electromechanical motor or generator may, respectively, be configured convert electricity to mechanical energy or convert mechanical energy in the form of fluid flow for use in one or more downhole tools. The electromechanical motor or generator includes one of a rotor and a stator disposed concentrically around and operatively coupled to the other of the rotor and the stator. A sleeve is disposed concentrically between the rotor and the stator. The sleeve contacts a body to enclose and hermetically seal one of the rotor and the stator therein. The sleeve comprises at least one metal portion and at least one non-magnetic and non-conductive portion. Related methods involve the formation of such a motor or generator.

公开(公告)号：US20160090787A1

公开(公告)日：2016-03-31

申请号：US14502338

申请日：2014-09-30

Applicant: BAKER HUGHES INCORPORATED

Inventor： Sebastian Tegeler ,  Steffen Toscher ,  Otto N. Fanini

IPC: E21B4/02 ,  E21B3/00 ,  E21B7/28 ,  H02K41/03

CPC classification number: H02K41/031 ,  E21B4/04 ,  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.

Abstract translation: 在钻孔中使用的装置可以包括具有至少一组磁性元件的转子和具有横向于定子长轴方向的绕组的圆柱形定子。 转子的每个磁性元件的极性可以被布置成沿着转子的长轴交替。 定子可以与转子滑动接合，并且具有至少部分地由与定子的长轴共面的平面排列的叠片形成的芯。 绕组的通电主要是导致转子和定子之间的相对滑动。 一种在钻孔中进行操作的方法包括形成具有如上所述的至少一个线性马达的井具，将线性马达输送到钻孔中，以及通过启动线性马达来操作井工具。