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An electromagnetic drive motor and rotary steerable drilling tool

An electromagnetic drive, motor rotor technology, applied in directional drilling, rotary drilling, rotary drilling rigs, etc., can solve the problems of difficult control and large size, and achieve the effects of easy control, small size and convenient use

Active Publication Date: 2021-04-06
BITSWAVE SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is more suitable for drilling ultra-deep wells, high-difficulty directional wells, horizontal wells, extended-reach wells and three-dimensional complex mechanism wells in complex oil and gas reservoirs in the late stage of oilfield development; The overall volume is large and difficult to control

Method used

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  • An electromagnetic drive motor and rotary steerable drilling tool
  • An electromagnetic drive motor and rotary steerable drilling tool
  • An electromagnetic drive motor and rotary steerable drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 3-Figure 6 As shown: an electromagnetic drive motor, including a motor stator and a motor rotor 5, the motor stator includes a stator core 1 and a stator winding 2, and the stator winding 2 is wound and arranged on the outer surface of the stator core 1, The motor rotor 5 includes a housing 8 and a magnetic member 6 disposed on the housing, and the housing 8 of the motor rotor 5 is sleeved on the motor stator wound with the stator winding 2 . On the stator core 1;

[0044] The magnetic part 6 is arranged on the side of the housing 8 close to the stator winding 2, and an air gap 7 is provided between the magnetic part 6 and the stator winding 2, and the air gap 7 is used for the stator Coupling between the magnetic field generated by the excitation of the winding 2 and the magnetic field generated by the magnetic member 6;

[0045] The center of the stator core 1 is provided with a through hole 101, and the through hole 101 is arranged along the axial d...

Embodiment 2

[0056] Embodiment 2: be the preferred embodiment of embodiment 1

[0057] Such as Figure 3 to Figure 7 As shown, an electromagnetic drive motor includes a motor stator and a motor rotor 5, the motor stator includes a stator core 1 and a stator winding 2, and the stator winding 2 is wound on the outer surface of the stator core 1, The motor rotor 5 includes a housing 8 and a magnetic member 6 disposed on the housing, and the housing 8 of the motor rotor 5 is sleeved on the motor stator wound with the stator winding 2 . On the stator core 1;

[0058] The magnetic part 6 is arranged on the side of the housing 8 close to the stator winding 2, and an air gap 7 is provided between the magnetic part 6 and the stator winding 2, and the air gap 7 is used for the stator Coupling between the magnetic field generated by the excitation of the winding 2 and the magnetic field generated by the magnetic member 6;

[0059] The center of the stator core 1 is provided with a through hole 101...

Embodiment 3

[0084] Such as figure 1 with figure 2 As shown, a rotary steerable drilling tool includes a rotary housing 9, a mud pipeline 10, an electromagnetic drive motor 11, a bias mechanism 12, a torque transmission mechanism 13, a drill bit transmission mechanism 14 and a drill bit, and the electromagnetic drive motor 11 is claimed The electromagnetic drive motor 11 described in any one of 1-8, the motor rotor 5 of the electromagnetic drive motor 11 is connected to the bias mechanism 12, and the motor rotor 5 is used to drive the bias mechanism 12 to synchronize turn;

[0085] The through hole 101 on the motor stator of the electromagnetic drive motor 11 is set on the mud pipeline 10, and the mud pipeline 10 is used for the circulation of mud in the drilling tool;

[0086] The bias mechanism 12 is used to drive the drill transmission mechanism 14 to move synchronously;

[0087] The rotating casing 9 drives the drill bit to rotate through the torque transmission mechanism 13; the m...

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Abstract

The invention discloses an electromagnetic drive motor, which comprises a motor stator and a motor rotor. The housing of the motor rotor is sheathed on the stator iron core of the motor stator wound with stator windings; the center of the stator iron core is provided with a through hole, The through hole is arranged along the axial direction of the stator core; a rotary steerable drilling tool is also disclosed, including a rotary shell, a mud pipeline, an electromagnetic drive motor, a bias mechanism, a torque transmission mechanism, a drill bit transmission mechanism and a drill bit, and the electromagnetic drive motor The motor rotor is connected with the bias mechanism, and the motor rotor is used to drive the bias mechanism to rotate synchronously; the through-hole sleeve on the motor stator of the electromagnetic drive motor is arranged on the mud pipeline, and the mud pipeline is used for the circulation of mud in the drilling tool; the present invention The motor stator is fixed on the outer surface of the mud pipeline to provide the mud channel required for drilling, and the motor rotor arranged outside the motor stator is connected to the bias mechanism, so that it can provide greater torque and realize the deflection function of the drilling tool.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to an electromagnetic drive motor and a rotary steerable drilling tool. Background technique [0002] The motor generates motion force through the interaction of magnetic force. The motor mainly includes a stator and a rotor. The stator is the static part of the motor. The stator is composed of three parts: stator core, stator winding and frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic force lines in the rotating magnetic field to generate current. In the process of making the stator, the traditional motor has the stator inside the outer rotor. This design has a small torque. In addition, the stator winding is first wound with a mold, and then the winding is manually inserted into the stator slot. Due to the small internal space of the stator, the winding The line is inconvenient and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/22H02K11/215H02K3/46E21B3/02E21B7/06
CPCE21B3/02E21B7/06H02K3/46H02K21/22H02K11/215
Inventor 王华平刘策王忠
Owner BITSWAVE SUZHOU