Flow speed measurement instrument and measurement method in micro flow

Abstract

The invention discloses a flow speed measurement instrument in micro flow, which is applied to micro flow experiments for petroleum recovery rate. The flow speed measurement instrument is characterized in that at least three sections of micro speed measurement tubes are horizontally fixed on a fixed board, and one end of a first section of micro speed measurement tube is connected to an inlet tube line. The other end of the first section of micro speed measurement tube is connected with a tee, and a vertical end of the tee is connected with a section increasing plug tube line. The other end of the tee is horizontally connected with a second section of micro speed measurement tube. A scale is fixed along and beside the second section of micro speed measurement tube. The other end of the second section of micro speed measurement tube is connected with a bent tube and a micro speed measurement tube. The end part of the last section of micro speed measurement tube is connected with an outlet tube line. The flow speed measurement instrument has the effects that the instrument can quantitatively measure the seepage speed of the fluid in a micro model, can quantify the instantaneous seepage speed in the micro model, realizes the measurement for the seepage speed under a high pressure condition, and improves the measuring precision of micro model displacement experiments.

Description

technical field [0001] The invention relates to the technical field of flow measurement in oil recovery microscopic flow experiments, in particular to a flow velocity measuring instrument and a measurement method in micro flow. Background technique [0002] With the expansion of oilfield development scale and the deepening of research, more and more oil workers pay more and more attention to the research of enhanced oil recovery technology. In the study of enhanced oil recovery technology, physical model displacement experiment is the most important technical means to evaluate the performance of chemical oil displacement agent. Among them, the simulation experiment results (such as pressure, recovery data, etc.) obtained on the macroscopic or microscopic physical model are an important basis for determining the implementation plan of the chemical flooding field. Because the microscopic physical model can clearly and intuitively observe the flow characteristics of the fluid ...

AI Technical Summary

Problems solved by technology

To overcome the shortcomings of the current micro-flow rate measurement, which can only measure the average value of water, oil or chemical agent flow rate, cannot measure the instantaneous flow rate of water, oil or chemical agent, and it is difficult to measure the accurate value of water, oil or chemical agent flow rate

Images