Metering device and method

A technology of measuring devices and measuring methods, which is applied in the directions of measuring devices, volume measuring instruments/methods, measuring capacity, etc., can solve the problems of complex ultrasonic instruments, low pressure resistance, difficulty in applying oil and water measurement, etc., and achieve high accuracy of test results , The effect of a simple test method

Active Publication Date: 2017-10-24
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

This method requires the use of a visible high-pressure window. If the window is made of transparent pressure-resistant glass, its pressure resistance is not high. If sapphire is used as the high-pressure window, the cost is too high; at the same time, the error in measuring the volume of oil and water by the image analysis method is relatively large, so However, there are still some problems and deficiencies in this high-temperature and high-pressure oil-water metering method
[0005] Ultrasonic liquid level measurement uses the time difference generated by the wave’s rebound on the phase interface to measure the liquid level height. When it is used to measure the gas-containing crude oil and water level in a closed con

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[0032] Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the drawings show preferred embodiments of the present disclosure, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] The gas-containing crude oil / water volume metering device according to an exemplary embodiment includes:

[0034] Insulated container, the inlet of the insulated container is connected to the extraction end of the displacement experiment;

[0035] The conductive rod is set in an insulating container;

[0036] The resistance rod is arranged in an insulating container and insulated from the conductive rod;

[0037] Back pre...

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Abstract

The invention discloses a metering device and method. The device comprises an insulating container, a conducting rod, a resistor rod, a back-pressure valve, a back-pressure control pump, a gas flow meter and a data monitoring terminal. An inlet of the insulating container is connected to the withdrawal end of a displacement experiment, the conducting rod is arranged inside the insulating container, the resistor rod is arranged inside the insulating container, and the resistor rod and the conducting rod are insulating; the back-pressure valve is used for controlling pressure in the insulating container; the back-pressure control pump is used for controlling the pressure of the back-pressure valve; the gas flow meter is used for measuring the volume of gas discharged by the insulating container; the data monitoring terminal is connected with the resistor rod and the conducting rod, and used for monitoring current passing through the resistor rod and the conducting rod. By the utilization of the metering device and method, the volume of crude oil containing gas and water generated by the displacement experiment can be directly metered when the crude oil contains the dissolved gas, the testing method is simple and convenient and rapid to implement, and testing results are high in precision.

Description

technical field [0001] The disclosure relates to the technical field of oil and gas field development experiments, in particular to a gas-bearing crude oil / water volume metering device and method for indoor oil displacement experiments. Background technique [0002] Water injection can replenish formation energy and displace crude oil, and is currently the most widely used EOR technology in oilfields. Indoor physical simulation experiment is an important technical means to evaluate the characteristics of reservoir water flooding development. In the process of indoor physical simulation experiment, the key is to accurately measure the volume of oil and water at the production end. [0003] At present, the measurement of gas-containing crude oil and water in indoor simulation experiments is mostly carried out under normal temperature and atmospheric environment. The volume of dissolved gas in gas-containing crude oil is measured by drainage method or flowmeter respectively, an...

Claims

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Application Information

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IPC IPC(8): G01F22/00
Inventor 赵清民吕成远伦增珉潘伟义王海涛赵春鹏周霞郎东江李宏伟
Owner CHINA PETROLEUM & CHEM CORP
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