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Cell-type vibration generator for oil drilling

A technology for oil drilling and generators, which is applied in the fields of electric power, aerospace, and petroleum industries. It can solve problems such as the lack of conditions for the transformation of mud turbine generators and limited space dimensions, and achieve simple and easy implementation principles and methods with long service life. Extended, flexible and adjustable output voltage effect

Inactive Publication Date: 2017-01-25
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mud generator needs a certain space size to meet the energy conversion. For many MWD and LWD instruments, the space size is limited, and there is no condition for the transformation of the mud turbine generator

Method used

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  • Cell-type vibration generator for oil drilling
  • Cell-type vibration generator for oil drilling

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Embodiment Construction

[0020] The present invention provides a battery-type vibration generator for petroleum drilling. The energy source of the generator is the vibration kinetic energy of the surrounding environment of the downhole drilling tool. The vibration kinetic energy is converted into the electromagnetic coupling between the generator winding and the permanent magnet generator vibrator. The electric energy is converted into direct current by the built-in rectifying and stabilizing circuit (it can be stored by the high-temperature energy storage capacitor first). The generator uses the shell as the negative pole of the power supply, and the positive lead is extended from the positive pole cover, and the power supply can be directly supplied when there is demand at the back end.

[0021] The specific implementation structure can be as figure 1 As shown, it includes the positive terminal cover 1, the power probe 3, the rectifying and stabilizing circuit board 4, the battery generator casing 5, th...

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Abstract

A cell-type vibration generator for oil drilling comprises a positive end cover, a power exploring pipe, a commutating and voltage-stabilizing circuit plate, a cell-type generator shell, a generator winding, a permanent-magnetic power generating vibrator and a vibration spring. One end of the vibration spring is connected with a drill while the other end is connected with the permanent-magnetic power generating vibrator; the generator winding is fixed in the cell-type generator shell and is insulated with same; the permanent-magnetic power generating vibrator penetrates the generator winding with two ends connected with the cell-type generator shell through a bearing; the power exploring pipe is fixedly connected in the cell-type generator shell, and the commutating and voltage-stabilizing circuit plate is fixed in the power exploring pipe; the generator winding interacts with the permanent-magnetic power generating vibrator to generate three-phase alternating current, and the three-phase alternating current is commutated and stabilized into direct current via the commutating and voltage-stabilizing circuit plate; the positive end cover is fixedly connected to the rear end of the power exploring pipe, a lead passing hole is formed in the positive end cover, and a power exploring pipe lead extends out of the lead passing hole to serve as a positive electrode for the entire device.

Description

Technical field [0001] The invention relates to the fields of petroleum industry, aerospace and electric power, in particular to a battery type vibration generator for petroleum drilling. Background technique [0002] At present, the underground MWD and LWD power supplies mainly use disposable battery cartridges. This power supply method has limited energy and high temperature requirements. Once the battery cartridge is powered off, the instrument will not work. The capacity and reliability of the battery cartridge greatly limit the life of the instrument, and the one-time use method also greatly increases the cost. The existing battery canister alternative provides power to the mud generator. The mud drives the turbine to rotate, converts the pressure energy of the mud into mechanical energy, and then drives the motor to generate electricity through the turbine, which converts the mechanical energy into electrical energy. This power supply method solves part of the MWD. , LWD's...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/32H02J7/34
CPCH02J7/32H02J7/345
Inventor 白玉新张达王恒罗翔王宏扬
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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