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High-temperature and high-pressure visual microflow measuring apparatus and measuring method

A technology of micro-flow and measuring instruments, which is applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, instruments, etc., can solve problems affecting measurement results, error measurement accuracy, etc., achieve accurate experimental data, eliminate system errors, and eliminate effect of error

Active Publication Date: 2009-12-23
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

To overcome the measurement method of electronic balance weighing, the measurement result is affected by the experimental container and connecting pipeline, resulting in the disadvantage of low error measurement accuracy

Method used

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  • High-temperature and high-pressure visual microflow measuring apparatus and measuring method
  • High-temperature and high-pressure visual microflow measuring apparatus and measuring method
  • High-temperature and high-pressure visual microflow measuring apparatus and measuring method

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Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1: Taking a visualized micro-flow meter 15 as an example, the invention is further described in detail.

[0041] refer to figure 1 . The visualized micro-flow meter of the present invention includes an end cover 1 , an outer cylinder 2 , a scale 3 , a fixed bracket 5 , a circulating water bath tube 6 , a glass tube 7 and an isolation slug 8 . The outer cylinder 2 is cylindrical, and two end caps 1 are respectively fixed on the two ends of the outer cylinder 2 . There are two inlet and outlet holes for water bath circulation pipes on one end cover 2 . There is a central hole on the two end caps 2 respectively, and the two ends of the glass tube 7 pass through the central holes of the two end caps 1 respectively. refer to figure 2 . A glass tube 7 and a circulating water bath tube 6 are fixed inside the outer cylinder 2 through a fixing bracket 5 . The inner diameter of the glass tube 7 is 4 mm. The glass tube 7 has a length of 100 mm. The glass tube ...

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Abstract

The invention provides a visual microflow measuring apparatus which is applicable to an oil recovery percent microcosmic flow experiment. The invention is characterized in that end covers are respectively fixed on the two ends of an external cylinder. The inner part of the external cylinder is fixedly provided with a glass pipe and a circulator bath pipe. The glass pipe is internally provided with a separating section plug. The glass pipe is connected with the centre hole of the end cover by an iron pipe line. The wall of the external cylinder is axially provided with an observation window. The outer wall of the external cylinder is fixedly provided with a scale ruler along the observation window. The invention has the advantages that the microflow can be measured under the condition of high temperature, high pressure and seal; error which is caused by evaporation under an indoor condition is eliminated; and an experiment data is exactly obtained and can be used for quantitative research of a seepage experiment.

Description

technical field [0001] The invention relates to the technical field of flow measurement in oil recovery microscopic flow experiments, in particular to a high-temperature and high-pressure visualized micro-flow meter and a measurement method. Background technique [0002] At present, in the physical simulation experiment of oil and gas field development, under the condition of normal temperature and pressure, the measurement method of electronic balance weighing is generally used for liquid measurement of micro flow rate, and the measurement method of gas flow meter or drainage method is generally used for gas measurement. [0003] In the physical simulation experiment of oilfield development, the experimental conditions are generally high temperature 80°C and high pressure 20MPa. In the experiment in a steel container resistant to high temperature and high pressure, the micro flow measurement cannot be intuitively measured, and can only be measured indirectly based on the rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/708
Inventor 秦积舜陈兴隆张可
Owner PETROCHINA CO LTD
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