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Motor for driving drilling tool underground

A technology of electric motor and electric motor casing, applied in the field of electric motor, can solve the problems of increasing operating cost, speeding up drilling speed, long energy transmission path, etc., and achieving the effect of high energy conversion efficiency, improving work efficiency and reducing cost

Active Publication Date: 2017-02-15
中曼石油装备集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above drill bit driving methods have the following disadvantages: 1) The energy transmission path is long and the loss is large; 2) The effective utilization and conversion efficiency of energy is low; 3) The upper limit of the working speed of the drill disc, top drive device and screw drilling tool of the conventional drive bit is generally at 300 rpm, it is difficult to increase the drilling speed by increasing the bit speed; 4) In addition, when drilling with a screw drilling tool, the life of the screw drilling tool itself is short, usually only one or two hundred hours, which undoubtedly increases the operating cost and reduces the Drilling effective time

Method used

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  • Motor for driving drilling tool underground
  • Motor for driving drilling tool underground
  • Motor for driving drilling tool underground

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, a motor for driving a drilling tool downhole, the overall structure of the motor is elongated cylindrical, the motor includes a motor housing 7, a stator, a rotor shaft 9, an upper rotor support bearing 5, a lower rotor support bearing 28, an upper bearing Seat 6, lower bearing seat 13, male conductive ring 2, female conductive ring 14, connecting spline sleeve 1, upper spline locating bearing 3 and lower spline locating bearing 27.

[0037] The rotor shaft 9 is a hollow cylindrical structure, and the hollow part of the rotor shaft 9 is a mud channel 21. A connecting spline sleeve 1 is provided outside the front end of the rotor shaft 9, and a connecting spline sleeve 1 is provided on the connecting spline sleeve 1. There is a mud channel sealing ring 20, which seals the mud in the mud channel 21, and puts the mud into the bearing lubricating part, which affects the bearing life.

[0038] T...

Embodiment 2

[0049] Such as Figure 6 , Figure 7 and Figure 8 As shown, it is the case that two motors of the present invention are connected together, and the number of connected motors of the present invention can also be one or more, wherein the two motors of the present invention are respectively the first module motor 100 and the second module motor 101 , the motor of the present invention is designed and manufactured according to standardization and modularization. The size and structure of the first module motor 100 and the second module motor 101 are the same, and they become an integral motor after being connected to drive the drill bit 17 to rotate.

[0050] A motor used to drive drilling tools downhole. The overall structure of the motor is elongated and cylindrical. The motor includes a motor housing 7, a stator, a rotor shaft 9, an upper rotor support bearing 5, a lower rotor support bearing 28, an upper bearing seat 6, The lower bearing seat 13, the male conductive ring 2...

Embodiment 3

[0064] Such as Figure 9 , Figure 10 and Figure 4 As shown, a motor for driving a drilling tool downhole, the overall structure of the motor is elongated cylindrical, the motor includes a motor housing 7, a stator, a rotor shaft 9, an upper rotor support bearing 5, a lower rotor support bearing 28, an upper bearing Seat 6, lower bearing seat 13, male conductive ring 2, female conductive ring 14, connecting spline sleeve 1, upper spline locating bearing 3 and lower spline locating bearing 27.

[0065] The rotor shaft 9 is a hollow cylindrical structure, and the hollow part of the rotor shaft 9 is a mud channel 21. A connecting spline sleeve 1 is provided outside the front end of the rotor shaft 9, and a connecting spline sleeve 1 is provided on the connecting spline sleeve 1. There is a mud channel sealing ring 20, which seals the mud in the mud channel 21, and puts the mud into the bearing lubricating part, which affects the bearing life.

[0066]The front end of the conn...

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PUM

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Abstract

The present invention relates to a motor for driving a drilling tool underground. The total structure of the motor is an elongated cylinder. The motor comprises a motor housing (7), a stator, a rotor shaft (9), an upper rotor back-up bearing (5), a lower rotor back-up bearing (8), an upper bearing base (6), a lower bearing base (13), a male conducting ring (2), female conducting ring (14), a connection spline (22), a connection spline sleeve (1), an upper spline location bearing (3) and a lower spline location bearing (27). The motor employs standard and modular design production and can perform one or more than one cooperation usage. The energy conversion efficiency is high, the cost is low and the usage is convenient.

Description

technical field [0001] The invention relates to a power driving system of an oil drilling downhole drilling tool, in particular to a motor for driving a downhole drilling tool. Background technique [0002] In the rapidly developing modern society, oil, coal, and natural gas, as commonly used energy and chemical raw materials, have always maintained a huge demand, and these resources are buried deep underground, and their exploitation usually requires drilling and drilling tools. The drill bit of the drilling tool needs to be driven by a motor to rotate for drilling operations. [0003] At present, there are two common ways to drive the downhole drill bit to rotate: one is to use the turntable or top drive device on the ground to drive the downhole drill bit to rotate through the drill pipe; The energy is converted into rotational power to drive the drill bit to rotate. The above drill bit driving methods have the following disadvantages: 1) The energy transmission path is...

Claims

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Application Information

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IPC IPC(8): H02K7/14H02K5/16
CPCH02K5/16H02K7/14
Inventor 隋少元
Owner 中曼石油装备集团有限公司