A multi-phase and multi-fluid injection system controlled by a single pump

Abstract

The invention belongs to the technical field of multi-phase fluid in power engineering and engineering thermophysics, and provides a single pump-controlled simple microscopic visualization system formulti-phase fluid injection. The single pump-controlled simple microscopic visualization system consists of injection drive, microscopic visualization and data collection. A single pump-controlled multi-phase fluid injection method is characterized in that a pressure difference produced by similar vacuum is used for sucking fluid into a middle piston container; the method can also be popularized to other experiment systems that need fluid injection; the method not only can be implemented at normal temperature and normal pressure, but also can be operated at high temperature and high pressure.The single pump-controlled simple microscopic visualization system has the advantages that the visualization study on the multi-phase fluid driving in a porous medium at the microscopic scale can be realized, and the injection drive part can complete the injection of multiple types of fluid by only one plunger pump; the suction and injection of different fluid can be completed without detachment of the experiment system, and the experiment system can be conveniently cleaned and dried; the experiment design is simple, the operation is convenient, and the number of intermediate containers and the cost of experiments are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of multiphase flow in the first-level subject power engineering and engineering thermophysics, and relates to a multiphase multifluid injection system controlled by a single pump. Background technique [0002] The description of fluid flow characteristics in porous media is a key topic of widespread concern in science and engineering. Industrial sectors such as energy, water conservancy, chemical industry, and metallurgy, as well as meteorology, biology, and aerospace, have multiphase flow problems. For example, CO in energy and environmental protection 2 Geological storage, enhanced oil recovery, agricultural water leaching into soil and geothermal systems, etc. The study of multiphase flow in porous media is crucial to understanding seepage problems in formations, such as CO 2 Geological storage capacity, leakage risk and storage efficiency, etc. Although people have carried out a lot of research in the...

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Problems solved by technology

These patents introduced the principle of multiphase displacement on the microscopic scale in detail, but did not describe in detail the multiphase fluid injection driving part, or there were shortcomings such as too cumbersome experimental design, too complicated instrument operation, and too expensive system cost.

In addition, these patents can only be used for specific research objects in the fluid injection part. If the fluid is replaced, such as when cleaning or drying the experimental system, the system needs to be disassembled, which is inconvenient.

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