FILTRATION UNIT FOR PHYSICAL SIMULATION OF OIL DISPLACEMENT PROCESS Russian patent published in 2019 - IPC G09B23/40 E21B49/00 

FIELD: measurement technology.

SUBSTANCE: invention relates to investigation of filtration-capacitance properties of rocks and can be used for research purposes to simulate filtration processes and predict oil displacement coefficients when designing development systems of a specific deposit. Proposed plant comprises pump to feed displacement agent into core holder with bulk bed model composed of series-connected identical sections of reservoir samples. Length of the model is selected proceeding from observing the condition of similitude of the reservoir model and natural relationships of reservoir parameters. Sample sections are connected to each other by hollow adapters with inner diameter, which ensures preservation of linear flow rate of flow of displacement agent along the entire length of reservoir model taking into account formation of zone of mixture. At the ends of sections there are mesh filters, each of sections is equipped with a thermostatic band, along the entire length of the bulk model there installed are differential pressure and temperature sensors, the outlet channel of the last section of the core holder is connected to the reservoir for oil gathering and displacement agent. Bandage is made in form of electric belt heater.

EFFECT: higher accuracy of simulation of hydrodynamic formation conditions with maximum approximation to conditions of natural object, higher accuracy of evaluation of oil displacement factors.

1 cl, 2 dwg