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Underground wireless communication tool

A wireless communication and tool technology, applied in the field of communication tools, can solve problems such as the failure of wireless communication technology to be successfully applied, and achieve the effect of simple operation and increased success rate

Active Publication Date: 2012-04-18
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the underground wireless communication technology of water injection wells and oil production wells has not been successfully applied so far.

Method used

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, a downhole wireless communication tool includes an antenna 9 , a second coaxial cable 11A, a circuit board 12 and a first coaxial cable 11 connected in sequence. Among them, the first and second coaxial cables 11 and 11A are used for signal transmission, the circuit board 12 is used for receiving radio frequency signals, and the antenna 9 is used for transmitting signals.

[0019] Specifically, the first coaxial cable 11 is directly connected to the ground, and the ground transmits instructions to the circuit board 12. The circuit board 12 converts the instructions into wireless signals, and radiates outwards through the second coaxial cable 11A and the antenna 9. Wherein, the circuit board 12 also re...

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Abstract

The invention discloses an underground wireless communication tool, belonging to the field of petroleum and gas. The communication tool comprises an antenna, a second coaxial cable, a circuit board and a first coaxial cable which are connected sequentially; the radio-frequency signal of the circuit board is led through the coaxial cables to be connected with the antenna; the radio-frequency signal radiates externally from a radiation hole so as to achieve the aim of communication, wherein flexible or rigid seal structures are adopted in the coaxial cables, the circuit board and the antenna and components which are respectively connected with the coaxial cables, the circuit board and the antenna, thus the maintenance of the long-term stable wireless communication is realized at the underground high-pressure complex environment when the underground wireless communication tool provided by the invention is not butted joint with an underground actuator, so that the uploading of underground data and release of ground orders are realized, thus the operation is simple and reliable, the success ratio of the testing and debugging of a water injection well and an oil producing well can be improved obviously, and a technical support is provided for intelligent layering water injection and a layering oil producing technology.

Description

technical field [0001] The invention relates to a communication tool, in particular to a downhole wireless communication tool for water injection wells or oil production wells in oil fields, which is used to realize downhole data communication of water injection wells or oil production wells. Background technique [0002] As we all know, wireless communication is a communication method that uses the characteristics that electromagnetic wave signals can propagate in free space for information exchange. The wireless communication input module and output module are existing technologies, which can be maturely applied under normal temperature and normal pressure conditions. [0003] At present, the layered injection-production process in the oil field is developing towards intelligence and automation. Therefore, it is necessary to upload downhole status monitoring data and issue ground instructions through data communication tools. Therefore, it is urgent to develop a downhole ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40
Inventor 郑立臣裴晓含刘合刘玉章石白茹
Owner PETROCHINA CO LTD
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