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High-temperature driver pup joint and control method thereof

A control method and driver technology, which are applied in earth-moving drilling, electric pulse generator circuit, measurement, etc., can solve the problems of long maintenance cycle, high cost, inconvenience, etc., and achieve the effect of protecting battery safety and prolonging battery life.

Active Publication Date: 2021-04-16
JINAN NEW GIGANANO LONG DISTANCE MEASURING & CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, only a few countries have this kind of equipment. Most of the oil and gas wells and shale gas wells in Xinjiang, Qinghai, Sichuan and other regions in my country reach a depth of 6,000 meters. High, and the maintenance cycle is long, very inconvenient

Method used

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  • High-temperature driver pup joint and control method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028]figure 1It is a circuit configuration diagram of the high temperature driver short section of the present embodiment, such asfigure 1As shown, a high-temperature driver short term, including: constant current charging circuit, energy storage circuit, and drive waveform output circuit, constant current charging circuit, energy storage circuit, drive waveform output circuit sequentially connected; the constant current charging circuit and drive The waveform output circuit is controlled by the PWM circuit;

[0029]The constant current charging circuit includes a current acquisition module, a first PWM generating circuit, an MCU, a first driving circuit, a first MOS full bridge circuit, a first high-frequency transformer, and a first high frequency stream circuit, the current collecting module, first PWM generating circuit, first driving circuit, first MOS full bridge circuit, first high frequency transformer, first high frequency rectifier circuit is sequentially connected, the firs...

Embodiment 2

[0049]This embodiment provides a high-temperature driver short section control method, including: constant current charging circuit charging the energy storage circuit, if the output instruction is not received, the drive waveform output circuit does not work; if the output command, the energy storage circuit is connected The voltage is stored on the drive waveform output circuit, the drive waveform output circuit drives the pulse device;

[0050]The drive waveform output circuit is controlled by a PWM circuit, and the controlled signal of the PWM circuit is generated by a constant current charging circuit.

[0051]As one or more embodiments, the constant current charging circuit provides the specific process of charging the energy storage circuit:

[0052]The DC power supply is applied to the first MOS full bridge circuit by a current collecting module, which is driven by a first driving circuit, and the first driving circuit drive is controlled by the first first PWM, and the first The con...

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Abstract

The invention provides a high-temperature driver pup joint and a control method. The high-temperature driver pup joint comprises a constant current charging circuit, an energy storage circuit and a driving waveform output circuit, wherein the constant current charging circuit, the energy storage circuit and the driving waveform output circuit are connected in sequence; the constant-current charging circuit and the driving waveform output circuit are controlled by the PWM circuit; the constant-current charging circuit comprises a current acquisition module, a first PWM generation circuit, an MCU, a first driving circuit, a first MOS full-bridge circuit, a first high-frequency transformer and a first high-frequency rectification circuit, wherein the current acquisition module, the first PWM generation circuit, the first driving circuit, the first MOS full-bridge circuit, the first high-frequency transformer and the first high-frequency rectification circuit are connected in sequence; the first high-frequency rectifying circuit is connected with the energy storage circuit; the current acquisition module is further connected with the first MOS full-bridge circuit, the first PWM generation circuit is further connected with the MCU, and the MCU is connected with the driving waveform output circuit.

Description

Technical field[0001]The present disclosure belongs to the field of high temperature wireless and drilling apparatus of oilfield drilling, and specific relates to a high temperature driver short section and a control method thereof.Background technique[0002]The statement of this section is merely the background technology information related to the present disclosure, which is not necessarily constituted in prior art.[0003]Drilling fluid wireless with a drill apparatus, transmitting data by a variation of the pressure wave of the drilling fluid, and the instrument that controls the pressure wave change is a pulser, and the pulse is equivalent to a solenoid valve, and the instrument for controlling it is a driver. The drive is a power circuit, and the different pulsers are made by the corresponding drive. At present, most drivers have a maximum operating temperature of 125 ° C. It can work deeply about 3,000 meters, and for wells with more than 3,000 meters, or even 4000-6000 meters,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M9/04H03K3/57E21B47/18
Inventor 卢祥明余民
Owner JINAN NEW GIGANANO LONG DISTANCE MEASURING & CONTROL