Device for measuring micro flow in capillary bundle

Abstract

The invention discloses a device for measuring micro flow in a capillary bundle. The device for measuring the micro flow in the capillary bundle comprises a copper sulphate displacement container, a capillary bundle model, a quartz crystal microbalance and an electrochemical workstation, wherein the copper sulphate displacement container is internally and fully filled with a copper sulphate saturated solution and is provided with a flow-in end and a flow-out end; the capillary bundle model is connected with the flow-in end of the copper sulphate displacement container; the quartz crystal microbalance is provided with a flowing basin; the copper sulphate displacement container is located above the flowing basin; through a gravity action, the copper sulphate saturated solution which is displaced flows into the flowing basin from the flow-out end for being measured; the quartz crystal microbalance is connected with a computer through a first data line; the electrochemical workstation is connected with the quartz crystal microbalance and the computer through a second data line and a third data line. According to the device for measuring the micro flow in the capillary bundle, disclosed by the invention, accurate measurement of the micro flow can be realized, the measurement repeatability is high, the space occupation is small, and the operation is simple.

Description

technical field [0001] The invention relates to a micro-flow measuring device, in particular to a micro-flow measuring device used in capillary bundles. Background technique [0002] Chemical oil displacement agent is widely used in the process of oil extraction to enhance the recovery of crude oil. With the reduction of recoverable reserves of medium and high permeability reservoirs, the development of low permeability reservoirs has attracted more and more attention. Various chemical oil displacement agents have been developed at home and abroad to enhance the oil recovery of low permeability reservoirs. Such as surfactant, active water, nano liquid, etc. At present, the model used to evaluate the oil displacement performance of chemical oil displacement agents in the laboratory is mainly the core physical model, and the oil displacement efficiency obtained by it is relatively accurate. However, there are certain problems in using this model to evaluate the performance of...

AI Technical Summary

Problems solved by technology

At present, the model used to evaluate the oil displacement performance of chemical oil displacement agents in the laboratory is mainly the core physical model, and the oil displacement efficiency obtained by it is relatively accurate. However, there are certain problems in using this model to evaluate the performance of oil displacement agents. The mass (volume) flow rate of the liquid is measured by a graduated cylinder or an electronic balance. This method not only has low measurement accuracy, but also has large data errors and cannot be repeated.

This may lead to deviations from the actual data such as oil washing efficiency, sweeping ability, and enhanced recovery factor calculated from this.

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