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Channel Adaptive Drilling Communication Relay Sub, Drill String and Frequency Adaptive Regulator

A communication relay and self-adaptive technology, applied in the field of data transmission, can solve problems such as excessive signal interference, difficulty in continuing to transmit information, incomplete coupling, etc.

Active Publication Date: 2021-06-25
ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The modulated signal is transmitted along the cable in the drill pipe through the induction joint section by section. Due to the leakage magnetic flux between the two coils, they cannot be completely coupled. When the signal is transmitted through about 30 sections of drill pipe magnetic induction coupler, the signal Received more interference and greater attenuation, making it difficult to continue transmitting information

Method used

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  • Channel Adaptive Drilling Communication Relay Sub, Drill String and Frequency Adaptive Regulator
  • Channel Adaptive Drilling Communication Relay Sub, Drill String and Frequency Adaptive Regulator
  • Channel Adaptive Drilling Communication Relay Sub, Drill String and Frequency Adaptive Regulator

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

[0028] The first embodiment of the present invention relates to a channel adaptive drilling communication relay sub, such as figure 1 As shown, including: Coils 1 are respectively set at the joints at both ends of the relay sub, and the coil 1 forms a coupler with the coil at the joint of the adjacent sub, a...

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Abstract

The embodiment of the present invention relates to the technical field of data transmission, and discloses a channel-adaptive drilling communication relay nipple, a drill string and a frequency adaptive regulator, which uses the relay nipple to receive signals transmitted downhole, and after demodulation and modulation After processing such as amplification and amplification, the signal is forwarded to the upper drill pipe, so as to realize the downhole signal relay transmission and improve the anti-attenuation ability of the signal.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of data transmission, in particular to a channel adaptive drilling communication relay nipple, a drill string and a frequency adaptive regulator. Background technique [0002] With the continuous development of oil drilling technology, drilling equipment is also developing in the direction of informatization and automation. During the drilling process, it is necessary to obtain geological data during the logging process in real time, monitor the drilling environment in real time, and adjust the drilling process in time. The measurement-while-drilling technology refers to the use of sensors to measure various parameters downhole during the drilling process, and then sends the measured data back to the ground in real time, so that the ground staff can collect the data, and according to the collected data Judge the working status and make real-time decisions. [0003] However, proble...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/13
Inventor 王尔钧李中郭永宾钟其水谢玉洪李辉刘振江孟文波颜帮川赵启彬任冠龙董钊张崇余意崔龙
Owner ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP