Multi-functional physical simulation experiment device for oil and gas reservoir filtration

Abstract

The invention provides a multi-functional physical simulation experiment device for oil and gas reservoir filtration. The device comprises a model clamping device, an oil and gas storage device, a ring crush control device, a temperature control device and an automatic acquisition device. The model clamping device is used for sealing and packing a physical model. The oil-gas-water storage device is used for providing fluids needed for the simulation experiment process. The ring crush control device is used for providing ring crush to a simulation experiment and achieving sealing. The temperature control device is used for providing simulated formation temperature for the simulation experiment. The automatic acquisition device is connected to the ring crush control device and the temperature control device and used for automatically acquiring data of an experiment process. The multi-functional physical simulation experiment device for oil and gas reservoir filtration has following beneficial effects: the device is capable of carrying out physical simulation experiments related to oil-gas reservoir filtration on different physical models and helps ensure the fact that the simulation experiments can be performed for a long time without interruptions; formation pressure and temperature conditions can be simulated; and human metering errors are reduced.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to a multifunctional oil and gas reservoir seepage physical simulation experiment device. Background technique [0002] At present, the physical simulation experimental methods of water flooding are being studied at home and abroad, mainly using four methods: sand filling model, artificial cementation model, simulation model and real reservoir model. [0003] The sand filling model is simple to make, low cost and short production time. Although it is difficult for the sand filling model to achieve the skeleton structure of the real reservoir, the model is widely used in the research of high permeability and sand production mechanism. [0004] The simulation model is mainly divided into two types. One is to mirror the pore structure of the reservoir rock onto the quartz glass, and to observe the fluid flow in the pores through a microscope. This method plays an important...

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Problems solved by technology

[0008] (1) For different physical models, a separate set of physical simulation experimental devices needs to be established, which takes up a lot of experimental equipment and laboratory space

[0009] (2) At present, the commonly used oil-water storage container is 2000ml, and the fluid volume is small, which has a great impact on the continuity of the physical simulation experiment, especially for larger physical models, there is no large enough fluid container to ensure the continuity of the experiment; At the same time, the current maximum pressure of the oil-water container is 30MPa, and the pressure is relatively small

[0010] (3) At present, in the gas displacement simulation experiment, the gas mainly comes from the nitrogen cylinder. Due to the limitation of the pressure condition of the nitrogen cylinder, the maximum gas pressure is often 12MPa, which is too small to meet the experimental conditions.

[0011] (4) In the collection of experimental data, it is often done by manpower, with poor precision and large errors

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