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Well mouth control device and method of electric control well completion system

A control device and electronic control technology, which is applied in the field of oil and gas exploration, can solve problems such as signal attenuation, large signal transmission distance, and errors, and achieve the effects of overcoming attenuation problems, avoiding signal distortion, and solving attenuation and distortion

Inactive Publication Date: 2018-06-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the steel pipe cable between the wellhead control device and the downhole distribution device in the electronically controlled well completion system is at least 3000 meters long, and the signal transmission distance is large, and there will be problems of signal attenuation and distortion; The control commands and oil layer data are transmitted through steel pipe cables, resulting in errors when the control commands are transmitted to the downhole distribution device. At the same time, the oil layer data collected by the downhole distribution device cannot be accurately transmitted to the remote control system

Method used

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  • Well mouth control device and method of electric control well completion system
  • Well mouth control device and method of electric control well completion system
  • Well mouth control device and method of electric control well completion system

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0043] The specific implementation of the embodiment of the present application will be described in detail below with several specific examples.

[0044] In the embodiment of this application, a wellhead control device for an electronically controlled well completion system is provided, such as figure 1 as shown, figure 1 It is a schem...

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Abstract

The embodiment of the invention provides a well mouth control device and method of an electric control well completion system. The device comprises a shell, a power conversion module, a data transmission module, a signal processing module, a wireless communication module, a power port, a cable connection port and an antenna port, wherein the power conversion module, the data transmission module, the signal processing module and the wireless communication module are located in the shell, and the power port, the cable connection port and the antenna port are located on the shell. The end, outside the shell, of the power port is connected with an alternating power supply, and the end, inside the shell, of the power port is connected with the power conversion module. The power conversion module is connected with the signal processing module and the data transmission module. The end, outside the shell, of the cable connection port is connected with a steel pipe cable, and the end, inside the shell, of the cable connection port is connected with the data transmission module. The end, outside the shell, of the antenna port is connected with an antenna, and the end, inside the shell, of the antenna port is connected with the wireless communication module. By means of the technical scheme, accurate control signals can be transmitted to a bottom-hole regulator and data collected by the bottom-hole regulator can be accurately obtained.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration, in particular to a wellhead control device and method for an electronically controlled well completion system. Background technique [0002] In the process of oil and gas exploration, intelligent well completion technology can monitor and control the production dynamics of reservoirs in real time, and it has unique advantages in optimizing oil well production, improving reservoir management, increasing ultimate recovery and saving physical workover time. At present, the cable-type electric control intelligent completion technology transmits power through steel pipe cables to control downhole intelligent switch tools. Therefore, cable-type electronically controlled intelligent well completion technology will be the future technology development trend. [0003] In the prior art, the cable-type electronically controlled well completion system mainly includes a downhole distribution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03E21B47/00E21B47/12
CPCE21B33/03E21B47/00E21B47/12
Inventor 廖成龙张卫平李明王新忠童征薛建军沈泽俊裴晓含
Owner PETROCHINA CO LTD
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