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Magnetic coupling energy-carrying reverse communication method for downhole measurement while drilling

A reverse communication and measurement-while-drilling technology, applied in signal transmission systems, instruments, electrical components, etc., can solve the problems of fragile structures of cables and connectors, high cost of manual repair and maintenance, and poor reliability of data transmission. Achieve the effect of saving equipment repair and personnel maintenance costs, convenient power supply mode, and improving the effective transmission distance of signals

Active Publication Date: 2022-01-11
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to propose a magnetic coupling energy-carrying reverse communication method suitable for the actual needs of downhole measurement while drilling. This method avoids the fragile structure of cables and connectors, poor reliability of data transmission, and The problem of high manual repair and maintenance costs has realized wireless non-contact communication of measurement signals and power transmission

Method used

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  • Magnetic coupling energy-carrying reverse communication method for downhole measurement while drilling
  • Magnetic coupling energy-carrying reverse communication method for downhole measurement while drilling
  • Magnetic coupling energy-carrying reverse communication method for downhole measurement while drilling

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Embodiment

[0053] This embodiment will specifically describe the specific process of downhole measurement while drilling and the components of each part of the device by the magnetic coupling reverse communication and energy carrying method. first combined with figure 1 , giving the steps of wireless magnetic coupling reverse communication and energy carrying method for downhole measurement while drilling:

[0054] Step 1: The generator nipple drives the drill bit to rotate for downhole drilling operations.

[0055] Step 2: The geological parameter sensor located in the probe sub-section 1 at the upper end of the screw measures the real-time well deviation, azimuth, tool surface and other geological parameter signals, and transmits them to the main control circuit sub-section 3 through the wireless magnetic coupling communication and the energy-carrying device 4; at the same time , the engineering parameter sensor located in the measuring drill collar also transmits the real-time measur...

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Abstract

The invention belongs to the technical field of drilling engineering, and in particular relates to a magnetic coupling energy-carrying reverse communication method for downhole measurement while drilling. The measurement signal of the geological parameter sensor in the joint is transmitted to the main control circuit sub-section through the wireless magnetic coupling communication and energy-carrying device; the engineering parameter sensor transmits the measurement signal to the wireless receiving sub-section through the wireless magnetic coupling communication and energy-carrying device; step 3 : The wireless receiving section performs signal amplification, filtering, and demodulation processing, and uploads to the ground system. The invention utilizes the principle of electromagnetic induction, adopts the wireless magnetic coupling communication mode to realize wireless non-contact communication, superimposes the wireless magnetic communication process, realizes the synchronous transmission of electric energy and information of the shared coupling mechanism, and avoids the high temperature, strong corrosion and tightness of the communication carrier due to downhole The structural fragility, poor reliability, and short service life caused by the requirements have improved the reliability of data transmission.

Description

technical field [0001] The invention belongs to the technical field of drilling engineering, and in particular relates to a magnetic coupling energy-carrying reverse communication method for downhole measurement while drilling. Background technique [0002] In the process of oil drilling, real-time measurement and uploading of downhole information by using downhole measurement instruments while drilling can improve the engineering control ability and formation evaluation ability of extended-reach wells and difficult horizontal wells, improve the drilling rate of oil layers, and provide support for drilling engineering construction. Provide strong protection. Downhole measurement while drilling instruments are usually composed of various short joints that are sleeved in drill collars in series. The sub-section is embedded with engineering parameter measurement sensors, mud pulse generators, generators, drive circuits and other functional components, which can achieve the pur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/00G08C17/02H02J50/12H02J50/80
Inventor 夏泊洢郭修成李鹏娜李连庆李永钊冷风承王磊田帅庄纯才张青宋成坤邓旭郑颖异张昕冉曲鑫周灵佐
Owner BC P INC CHINA NAT PETROLEUM CORP
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