Device for measuring frictional resistance coefficient of gas in underground gas storage well and monitoring vibration of tubular column

A vibration device and frictional resistance technology, which is applied in the fields of gas frictional resistance coefficient measurement of underground gas storage wells and pipe string vibration monitoring devices, and can solve problems such as structural failure and scrapping of underground gas storage wells

Inactive Publication Date: 2017-12-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When injecting and producing natural gas in an underground gas storage well, the interaction between the fluid and the pipe wall caused by the high-speed flow of natural gas in the pipe string is a problem

Method used

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  • Device for measuring frictional resistance coefficient of gas in underground gas storage well and monitoring vibration of tubular column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 As shown, a horizontal gas well gas injection and production process simulation and vibration characteristics analysis experimental device, including: a horizontally placed test pipeline, a gas supply system for providing gas flow, a data acquisition system, and an electric ball valve installed at one end of the test pipeline.

[0019] The gas supply system consists of a pipeline, a screw compressor, a gas buffer tank, and a gas mass flow controller. According to the actual situation, the air can be compressed into the gas buffer tank through the screw compressor.

[0020] The gas mass flow controller is installed behind the gas buffer tank and communicated with the computer to control the gas flow flowing into the test pipeline and prevent gas backflow.

[0021] The one-way valve is installed behind the gas mass flow controller to prevent gas backflow.

[0022] The data acquisition system is composed of a gas flow meter, a temperature sensor, a press...

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Abstract

The invention relates to the field of development of horizontal wells of underground gas storage wells, and particularly relates to a device for measuring the frictional resistance coefficient of gas in the underground gas storage well and monitoring the vibration of a tubular column. A system comprises four parts of a gas control unit, a pipeline testing unit, a vibration device unit and an acquisition control unit, wherein the gas control unit comprises a screw compressor, a buffer tank and a gas mass flow controller, the buffer tank is connected between the screw compressor and the gas mass flow controller; the pipeline testing unit comprises a simulating pipeline and a sensor; and the vibration device unit comprises a vibration sensor group and an upper computer, and a vibration sensor comprises an acceleration sensor. The acquisition control unit is realized by connecting a computer with a test device in series. The frictional resistance coefficient of the gas in the tubular column of the underground gas storage well is measured, the vibration performances of the tubular column under the working conditions of injection and extraction are monitored, and the structure integrity of the tubular column of the underground gas storage well and the safety of the whole well are guaranteed.

Description

technical field [0001] The invention relates to the field of underground gas storage horizontal well development, in particular to an underground gas storage well gas friction resistance coefficient measurement and pipe string vibration monitoring device. Background technique [0002] With the continuous and in-depth development of the oil and gas industry, the scale and number of underground gas storage wells and high-pressure gas wells continue to increase. According to research and engineering experience, in the absence of accurate friction coefficients, the current scientific research results and technical means cannot calculate the force of the pipe string well, which makes the selection of pipe string materials for gas storage wells lack of basis, which affects the cementing efficiency and Gas well safety. The traditional frictional resistance coefficient measurement experiments and theories are mainly aimed at the liquid wall, and the measurement and calculation of t...

Claims

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Application Information

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IPC IPC(8): E21B49/00E21B43/16E21B47/06E21B47/07
CPCE21B43/168E21B47/06E21B47/07E21B49/00
Inventor 闫怡飞闫相祯刘铭刚韩生超骆佳楠闫行杨秀娟
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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