Submersible electric pump downhole data acquisition device

A technology of downhole data and submersible electric pump, which is applied in the field of oil production, can solve the problems of interference in the transmission of data acquisition devices, and achieve the effect of realizing long-distance data transmission, ensuring data integrity and improving stability.

Inactive Publication Date: 2020-04-17
HARBIN ENG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the existing data acquisition device is disturbed during transmission. The present invention provides an electric submersible pump downhole data acquisition device

Method used

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  • Submersible electric pump downhole data acquisition device
  • Submersible electric pump downhole data acquisition device
  • Submersible electric pump downhole data acquisition device

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0043] combine figure 1 Describe this embodiment, the electric submersible pump downhole data acquisition devic...

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Abstract

The invention provides a submersible electric pump downhole data acquisition device for solving the problem that transmission of an existing data acquisition device is interfered. The submersible electric pump downhole data acquisition device comprises an on-well data receiving system and a downhole data transmission system; the on-well data receiving system is connected with the downhole data transmission system through an on-well three-phase electric reactor and a three-phase power cable, and the on-well data receiving system exchanges the data with the downhole data transmission system through an on-well power line carrier module; and the downhole data transmission system exchanges the data with a sensor interface module through the downhole power line carrier module, and the downhole data transmission system exchanges data with the on-well data receiving system through a submersible electric pump motor winding assembly. According to the submersible electric pump downhole data acquisition device, the power line carrier module adopts power supply lines of the submersible electric pump as carriers, communication is conducted through power line carrier, a spread spectrum technology is combined, a sensor signal is conducted frequency conversion under the same transformer, a signal spectrum is moved to a plurality of frequency bands, then the signal is coupled to the power lines through a coupling capacitor, and data transmission is realized.

Description

technical field [0001] The invention relates to a data acquisition device, in particular to a downhole data acquisition device of an electric submersible pump, which belongs to the technical field of oil recovery. Background technique [0002] With the development of oil recovery technology, there are more and more deep well operations. The distance between the downhole and the well is several thousand meters. The increase of the distance leads to the increase of the temperature and pressure of the downhole environment. The cost of traditional downhole communication applications is getting higher and higher, and the transmission of parameters is not enough Stable and large interference noise, resulting in generally bad domestic use. [0003] The power carrier transmission mode is a special wired transmission mode in which the power line is used as a channel for communication. Because it does not need to re-lay lines, it can not only save material costs, but also reduce labo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/008E21B47/12
CPCE21B47/008E21B47/12
Inventor 李冰冰简荣坤唐胜武张宪修威国刘志远杨鹏吴亚林孙志成耿振亚董立凯
Owner HARBIN ENG UNIV
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