A water flooding oil microscopic physical simulation experiment device and method

Abstract

The invention relates to a microphysics simulation experiment apparatus and method for oil displacement by water; the apparatus is characterized by comprising an oil microscopic observation system, a liquid level laser scanning system, a computer terminal, a first specimen and a second specimen; the liquid level laser scanning system comprises a platform, a support frame, a motor, a screw, a shifting table, a laser sensor, a waste liquid recycler, a support and a hydraulic pump; the support frame and the motor are arranged on two sides of the top of the platform in opposite manner; the second specimen is arranged at the top of the support frame, and the waste liquid recycler is arranged at the top of one end of the support frame; a shifting table capable of moving parallelly is arranged on a screw of the motor, and the laser sensor is arranged on the shifting table; a support is arranged at the bottom of the platform, and the hydraulic pump that is liftable is arranged between the bottom of the platform and the support; the laser sensor is connected with a computer terminal and is used for laser-scanning the second specimen and transmitting scanning data to the computer terminal. The microphysics simulation experiment apparatus and method are widely applicable to microphysics simulation experimental researches in the petroleum field.

Description

technical field [0001] The invention relates to a microscopic physical simulation experiment device and method, in particular to a water flooding oil microscopic physical simulation experiment device and method. Background technique [0002] Microscopic physical simulation experiments started earlier at home and abroad. In 1952, Chatenever et al. used glass materials to make granular filling microscopic models to study the visualization of the displacement process of porous media, and analyzed the morphology and formation mechanism of microscopic remaining oil. The Institute of Seepage of the Chinese Academy of Sciences put forward the idea of ​​"microscopic seepage" in the 1960s. Academician Guo Shangping conducted a large number of experimental studies on seepage mechanism using microscopic physical models, carried out research on water injection fingering development and pore-level mechanism, and expounded oil-water two Phase seepage mechanism. Lenormand studied the law ...

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Problems solved by technology

[0003] However, due to the limitations of chip manufacturing materials, processes, and data acquisition and processing equipment, the channel scale of the chip is too large and the size cannot be quantitatively controlled. The flow and pressure of the displacement experiment process cannot be quantitatively described. Many microscopic models cannot be called Microfluidic chips, so most of the previous related research by scholars focused on describing the displacement process, the location of remaining oil, and analyzing the impact of wettability on qualitative descriptions, lacking in the flow state, flow path, and state of remaining oil. Quantitative research on parameters (occurrence location, oil-water contact relationship, shape) etc.

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