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Zonal injection allocator with inner magnetic flow meter and cable transmission function and use method of injection allocator

A magnetic flowmeter and cable transmission technology, which is applied in the directions of measurement, production of fluids, and earth-moving drilling, etc., can solve problems such as the inability to achieve accurate injection, and achieve the effects of reliable data, accurate injection and high measurement accuracy.

Inactive Publication Date: 2015-01-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing eccentric injectors used in polymer injection wells in oil fields cannot achieve accurate injection, and now provides an internal magnetic flowmeter type cable transmission layered injector and a method for using the injector

Method used

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  • Zonal injection allocator with inner magnetic flow meter and cable transmission function and use method of injection allocator
  • Zonal injection allocator with inner magnetic flow meter and cable transmission function and use method of injection allocator
  • Zonal injection allocator with inner magnetic flow meter and cable transmission function and use method of injection allocator

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specific Embodiment approach 1

[0024] Specific implementation mode one: refer to figure 1 , Figure 5 and Figure 6 Specifically explain this embodiment, the internal magnetic flowmeter type cable transmission layered dispenser described in this embodiment, it includes the cable transmission layered dispenser body, it also includes: the first internal magnetic flowmeter B13 and the second Internal magnetic flowmeter B14;

[0025] The first internal magnetic flowmeter B13 is sleeved on the outside of the upper joint body 1, coaxial with the upper joint body 1, and in close contact with the upper layer 2 of the upper cable body;

[0026] The second inner magnetic flowmeter sleeve B14 is fixed on the outside of the center pipe 10 , is coaxial with the center pipe 10 , and is in close contact with the lower and upper layers 11 of the outer casing.

[0027] Internal magnetic flowmeter type cable transmission layered dispenser of the present invention, such as Figure 1 to Figure 12 As shown, it includes:

...

specific Embodiment approach 2

[0030] Embodiment 2: This embodiment is to further explain the internal magnetic flowmeter type cable transmission layered dispenser described in Embodiment 1. In this embodiment, the first internal magnetic flowmeter B13 and the upper joint The body 1 is threaded.

specific Embodiment approach 3

[0031] Embodiment 3: This embodiment is to further explain the internal magnetic flowmeter type cable transmission layered dispenser described in Embodiment 1. In this embodiment, the second internal magnetic flowmeter B14 and the center pipe 10 are threaded connections.

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Abstract

The invention discloses a zonal injection allocator with an inner magnetic flow meter and a cable transmission function and a use method of the injection allocator, relates to underground polymer drive equipment, and aims to solve the problem of inaccurate injection of an injection allocator used in a conventional oil field polymer injection well. The zonal injection allocator is characterized in that the volume flow of liquid flowing through a pipeline is converted into a typical electrical signal through the inner magnetic flow meter, the typical electrical signal is measured to obtain the volume of the liquid flowing through the pipeline, flow data is transmitted out through a circuit board, the injection quantity and the output quantity are obtained through overground data processing, and the injection quantity is adjusted by controlling the outlet pressure of a motor in time according to the injection quantity and the output quantity, so that the injection operation can be accurately finished. The zonal injection allocator can continuously and normally work in an underground temperature and pressure environment, and is suitable for crude oil recovery of the oil field polymer injection well; in addition, the measurement precision is high and the data is reliable.

Description

technical field [0001] The invention relates to a downhole polymer driving device. Background technique [0002] In order to further enhance oil recovery, polymer oil recovery has become an important means and method of oil field development after water flooding. However, due to the high viscosity of the polymer and the complex downhole environment, the current manual fishing technology cannot achieve flow monitoring and accurate flow injection. At the same time, the construction is very difficult and cannot meet the requirements of polymer injection. Therefore, it is decided to develop a polymer injection well measurement and adjustment system. , to improve the oil displacement effect. At present, among the eccentric injectors used in polymer injection wells in oil fields, most of them rely on replacing the valve core to adjust the pressure, but they cannot realize continuous adjustment of injection volume, and cannot meet the requirements of polymer injection in various f...

Claims

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Application Information

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IPC IPC(8): E21B43/22E21B47/12E21B47/06
CPCE21B43/162E21B47/06E21B47/12
Inventor 李隆球周德开高敏宋文平张广玉李天龙
Owner HARBIN INST OF TECH
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