Full 3D simulation visual displacement simulation experiment system for fracture-vuggy reservoirs

Abstract

The invention relates to a fully-three-dimensional simulated visualized displacement simulation experiment system of a fractured-vuggy oil reservoir. The fully-three-dimensional simulated visualized displacement simulation experiment system comprises trough, fractured-vuggy model, water injection, air injection, image acquisition and data acquisition simulation unit, a simulation oil groove and a three-phase separator. The trough simulation unit comprises a cubic trough, a glass pipe and a shaft. The fractured-vuggy model simulation unit comprises a cavern model and a crack model. The water injection simulation unit comprises a water injection tank and a water pump. The air injection simulation unit comprises an air compressor, an air storage tank, an emptying valve, a water draining filter and an air dryer. A particle forming test module of the image acquisition simulation unit is arranged on a sliding rod and installed on a support through the sliding rod. A pressure variator of the data acquisition simulation unit is installed at the connecting position of the shaft and the fractured-vuggy model simulation unit. The output end of the three-phase separator is respectively connected with the simulation oil groove and the water injection tank, and the input end of the three-phase separator is connected with the shaft. The fully-three-dimensional simulated visualized displacement simulation experiment system of the fractured-vuggy oil reservoir is simple and reasonable in structural design and capable of timely, intuitively and accurately monitoring a flow field and pressure change in a stratum.

Description

technical field [0001] The invention relates to the technical field of oil reservoir research in the field of petroleum and geological oil and gas field engineering, in particular to a full three-dimensional simulation and visual displacement simulation experiment system of fracture-cavity oil reservoirs. Background technique [0002] Physical simulation is an important way to understand the reservoir development process and study the law of fluid flow. Fracture-vuggy reservoirs are different from conventional oil reservoirs. The cave is the main storage space, the fracture is the main flow channel, the matrix basically has no storage and seepage capacity, and the fracture-vuggy reservoirs have random distribution in space, complex configuration relationships, and shape scales. Diversification and other characteristics have brought great difficulties to the creation of physical models of fractured-vuggy reservoirs. [0003] The Chinese patent application "Physical Simulatio...

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Problems solved by technology

[0010] In order to solve the above problems, the present invention proposes a method to solve the problem that the existing fracture-cavity reservoir simulation experiment device cannot meet the actual requirements of large-scale and full three-dimensional, and cannot monitor the pressure and flow field changes of various points in the formation in real time and accurately. The structural design is simple and reasonable, and it can monitor the flow field changes and pressure changes at various points in the formation in real time, accurately and intuitively. It is a full 3D simulation visual displacement simulation experiment system for fracture-cavity reservoirs.

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