Electromagnetic induction coupling charging device and charging method used in oil field downhole environment
An electromagnetic induction, coupled charging technology, applied in circuit devices, inductors, circuits, etc., can solve the problems of uncharged batteries, heavy removal workload, and high equipment costs, achieving less workload, stable and reliable charging, and improved transmission power. Effect
Active Publication Date: 2021-07-13
大庆随钻科技有限公司
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Problems solved by technology
[0003] An object of the present invention is to provide an electromagnetic induction coupling charging device used in the downhole environment of an oil field. Charging, the problem of taking out a large workload after use, another object of the present invention is to provide a charging method for this electromagnetic induction coupling charging device used in the downhole environment of an oil field
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[0022] Below in conjunction with accompanying drawing, the present invention will be further described:
[0023] Such as figure 1 As shown, this electromagnetic induction coupling charging device used in the downhole environment of an oil field includes a ground host 12, a fishing instrument part, and a downhole device. The ground host 12 is connected to the fishing instrument through a cable 1, and the primary side energy The transmitting coil 4 and the downhole device are set in the casing; the ground host 12 includes a DC power supply and the upper end of the power carrier; the throwing instrument part includes a DC-DC step-down module, a control module, a voltage and current phase detection module, a drive circuit, and a high frequency inverter. Transformer circuit, primary side compensation circuit, wireless communication module throwing instrument end, power carrier communication throwing instrument end are all arranged in the fishing instrument circuit board cavity 2, w...
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The invention relates to an electromagnetic induction coupling charging device and a charging method used in the downhole environment of an oil field, wherein the electromagnetic induction coupling charging device used in the downhole environment of an oil field includes a ground host, a part of a fishing instrument, a downhole device, a ground host and a throwing device. The fishing instrument is connected by a cable, and the lower end of the fishing instrument is equipped with a primary side energy transmitting coil; the fishing instrument part includes a DC-DC step-down module, a control module, a voltage and current phase detection module, a drive circuit, a high-frequency inverter circuit, and a primary side compensation circuit, wireless communication module fishing instrument terminal, power carrier communication fishing instrument terminal; the downhole device includes secondary side energy pickup coil, secondary side compensation circuit, and battery pack; when the battery pack is charging, as the fishing instrument is lowered, the primary The energy transmitting coil is coaxially inserted into the secondary energy pickup coil for charging. After the charging is completed, the primary energy transmitting coil is lifted out of the well. The invention uses the electromagnetic induction coupling power supply technology to charge the battery in the underground, and the workload is small and simple.
Description
Technical field: [0001] The invention relates to an electromagnetic induction coupling charging technology, in particular to an electromagnetic induction coupling charging device and a charging method used in the downhole environment of an oil field. Background technique: [0002] The current fine layered water injection technology is to install pressure, temperature, and flow monitoring equipment in the production well, and can comprehensively analyze the monitoring data, and control the outflow and inflow of the oil layer on the ground through the flow control equipment. From the perspective of electric energy supply, the existing water distribution and injection process includes two forms, one is the cable type, the downhole electric control equipment is connected to the ground host through cables, and signals can be transmitted from the ground at any time to control various operations of downhole devices, while Transmit downhole data to the surface. This method can real...
Claims
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IPC IPC(8): H02J50/10H01F38/14
CPCH01F38/14H02J50/10
Inventor 刘伟刘均王文天闫文迪龚成生吴润龙王广宇
Owner 大庆随钻科技有限公司