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Downhole drill motor

A technology of drilling tools and permanent magnet motors, which is applied to drilling driving devices, mechanical equipment, electric components, etc. in the wellbore, can solve the problems of automation and intelligence of difficult drilling operations, cumbersome installation of axial clearance, and small use range of drill bits, etc. problem, to reduce the influence of gyroscope positioning, high drilling efficiency, and the effect of reducing the influence

Active Publication Date: 2018-10-09
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the defects and deficiencies in the above-mentioned prior art, the present invention provides a motor for downhole drilling tools. More cumbersome, low drilling efficiency, difficult to realize the automation and intelligence of drilling operations

Method used

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Experimental program
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Effect test

Embodiment 1

[0044] As a preferred embodiment of the present invention, this embodiment discloses,

[0045] A motor for downhole drilling tools, including a protector 1, an instrument cabin 2, an upper sealing device 3, a permanent magnet motor 4, a lower sealing device 5, and a main shaft 6; the main shaft 6 is connected in segments, and the segments penetrate the protector 1. Instrument cabin 2, upper sealing device 3, permanent magnet motor 4 and lower sealing device 5; the upper sealing device 3 is connected with the permanent magnet motor 4 and fixed on the upper part of the permanent magnet motor 4; the lower sealing device 5 is connected with the permanent magnet motor The magnetic motor 4 is connected and fixed at the lower part of the permanent magnet motor 4; the protector 1 balances the internal and external pressure of the drilling motor; the instrument cabin 2 detects the drilling motor signal and communicates with the ground in real time.

[0046] When the motor works undergr...

Embodiment 2

[0048] As another preferred embodiment of the present invention, this embodiment discloses: a downhole drilling tool motor, including a protector 1, an instrument cabin 2, an upper sealing device 3, a permanent magnet motor 4, a lower sealing device 5 and a main shaft 6; The main shaft 6 is connected in sections, and sections run through the protector 1, the instrument cabin 2, the upper sealing device 3, the permanent magnet motor 4 and the lower sealing device 5; the upper sealing device 3 is connected with the permanent magnet motor 4 and fixed on the upper part of the permanent magnet motor 4; the lower sealing device 5 is connected to the permanent magnet motor 4 and fixed on the lower part of the permanent magnet motor 4; the protector 1 balances the internal and external pressure of the drilling tool motor; the instrument cabin 2 detects The motor signal of the drilling tool and the real-time communication with the ground. When the motor is working underground, it is ne...

Embodiment 3

[0050] As another preferred embodiment of the present invention, in this embodiment, the specific structure of the protector is disclosed. In this embodiment, the protector 1 includes a protector housing I11 and a protective device fixed on the protector housing I11. The base 12; the main shaft 6 is located in the protector housing I11 and fixed on the base 12, the base 12 has an oil hole I14, and a bellows assembly is arranged between the protector housing I11 and the main shaft 6, and the bellows The assembly includes an outer bellows 15, an inner bellows 16, a fixed seat 17, a movable seat 18 and a guide ring 19 connected to the movable seat 18. The guide ring 19 is slidably connected to the main shaft 6, and the fixed seat 17 is fixed on the main shaft 6. Above, one end of the outer bellows 15 is connected to the fixed seat 17, the other end is connected to the movable seat 18, the inner bellows 16 is connected to the movable seat 18, the outer bellows 15, the inner bellows...

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Abstract

The invention discloses an underground drilling tool motor and relates to the technical field of underground well drilling. The underground drilling tool motor comprises a protector (1), an instrument cabin (2), an upper part sealing device (3), a permanent magnet motor (4), a lower part sealing device (5) and a main shaft (6), wherein the main shaft (6) is connected in a sectional manner and penetrates through the protector (1), the instrument cabin (2), the upper part sealing device (3), the permanent magnet motor (4) and the lower part sealing device (5) in the sectional manner. With the adoption of the underground drilling tool motor, automation of a well drilling process can be effectively realized; vibration is reduced and influences on positioning of a gyroscope are reduced, so that other equipment is relatively reliable; and the underground drilling tool motor has a relatively high temperature adaption capability and a relatively high well drilling efficiency.

Description

technical field [0001] The invention relates to the technical field of downhole drilling, and more specifically relates to a downhole drilling tool motor. Background technique [0002] At present, the commonly used driving methods for downhole drilling tools are turbine drive or screw drive: [0003] The turbodrill has the soft characteristics of high speed and high torque, no lateral vibration, and high ROP; the all-metal turbodrill is resistant to high temperature and is suitable for deep wells and high-temperature environments; it is not sensitive to oil-based drilling fluid and can adapt to high drilling conditions. Density of the drilling fluid to work. The disadvantages are: the drilling tool is long, the application range of the drill bit is small (except for the deceleration turbine drilling tool); the installation and adjustment of the axial clearance are cumbersome. [0004] The screw drilling tool is designed by smithInternational based on the principle of the M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B4/04E21B4/00H02K5/132F16L29/02F16L39/00
CPCE21B4/003E21B4/04F16L29/02F16L39/00H02K5/132H02K2205/09
Inventor 林坤李少斌孙立宾李彬吴光焱史庆夫陈斯刘钰赵志城
Owner DONGFANG ELECTRIC MACHINERY
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