A high-temperature and high-pressure visualized microscopic oil reservoir chip holder and its use method

Abstract

The invention relates to a high-temperature and high-pressure visual microscopic oil reservoir chip holder and a use method thereof, wherein the holder is characterized in that the chip holder comprises a holder main body; the holder main body comprises an annular base, an annular top cover, a sapphire lens arranged at the lower part of the base, a press plate for fixing the sapphire lens, anothersapphire lens arranged on the top of the top cover, another press plate for fixing the another sapphire lens, and a microfluidic chip arranged on the base; the base is in blot connection with the topcover, and the microfluidic chip is fixed by an extrusion force between the base and the top cover; a space enclosed by the top cover, the second sapphire lens and the microfluidic chip is an upper seal cavity body, the upper seal cavity body is connected with an upper cavity body connector, and the upper cavity body connector communicates with the outside; a space enclosed by the base, the firstsapphire lens and the microfluidic chip is a lower seal cavity body, the lower seal cavity body is connected with a lower cavity body connector, and the lower cavity body connector communicates withthe outside. The holder can be widely applied in the field of micro-scale effect research.

Description

technical field [0001] The invention relates to the research field of microscale effects in the oil and gas development process, in particular to a high-temperature and high-pressure visualized microscopic oil reservoir chip holder and its use method. Background technique [0002] In the process of oilfield development and production in my country, water flooding is mainly used as the production method. How to evaluate the oil flooding effect and the effects of various chemical reagents used is a problem to be solved at present. In the prior art, there are multi-scale problems in the study of the oil displacement process. During oil field production, the research scope is on the scale of kilometers and meters. When macroscopic physical simulation experiments are carried out in the laboratory, the scale is generally in meters, and most of the thicker cores are used, and only partial conclusions can be drawn by measuring the data of the cores. For the actual effect of the flui...

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Problems solved by technology

[0004] At present, the use of microscopic reservoir chips to study reservoir engineering issues in the petroleum field is still in its infancy. Chip fixtures are mainly Luer connectors, which mainly pursue the sealing of the connectors, but it is difficult to simulate the high temperature and high pressure environment of actual reservoirs.

However, the conventional holders used in the field of petroleum engineering are mainly core holders, which are difficult to meet the requirements of visualization and small volume of holders for microscopic reservoir chip displacement experiments, which severely limit the application of microscopic reservoir chips in petroleum Applications in Engineering

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