A three-dimensional scale model automatic vacuuming and saturation device for microbial flooding

Abstract

The invention belongs to the technical field of petroleum industries, and specifically relates to an automatic vacuumizing and saturating device for a three-dimensional scale model for microbial oil recovery. The device comprises a vacuumizing unit, a formation water saturating unit and a control unit. The control unit is composed of a vacuumizing control device, a formation water saturating control device and an overpressure protective device, the vacuumizing control device controls the vacuumizing unit to achieve automatic vacuumizing of the model, the formation water saturating control device controls the formation water saturating unit to achieves automatic formation water saturating of the model, and the overpressure protective device controls pressure of the three-dimensional scale model when formation water saturating is conducted. The automatic vacuumizing and saturating device has the characteristics that the structure is simple, the automation degree is high, the operability is high, and the safety and the reliability are achieved; meanwhile, the vacuum degree when the three-dimensional scale model is vacuumized and the uniform distribution degree of formation water in the model when formation water saturating is conducted are enhanced, and therefore the accuracy and the reliability of a result of a physical simulation experiment for microbial oil recovery are enhanced; and thus the automatic vacuumizing and saturating device for the three-dimensional scale model for microbial oil recovery can be widely applied to three-dimensional physical simulation experiments for microbial oil recovery.

Description

technical field [0001] The invention belongs to the technical field of petroleum industry, and in particular relates to a three-dimensional proportional model automatic vacuuming and saturation device for microbial oil displacement. Background technique [0002] The physical simulation of microbial flooding is a common method for studying microbial flooding reservoirs. The physical simulation experiment of microbial flooding artificially reproduces the development process of microbial flooding reservoirs, more realistically simulates the seepage characteristics of actual reservoirs or oil wells, and studies reservoir parameters. , well geometry factors and external production controllable parameters on the development effect provide an important basis for formulating microbial flooding reservoir development strategies, countermeasures at different development stages, and oil stabilization and water control programs. The physical simulation of microbial flooding reservoirs at...

AI Technical Summary

Problems solved by technology

The above method of saturating the formation water is likely to lead to uneven distribution of formation water in the sand filling model and insufficient saturation of formation water, and the time of saturation of formation water is long and the efficiency is low

The current method of vacuuming and saturating formation water not only has low work efficiency, low degree of automation, and high labor intensity, but also the accuracy and reliability of the results of microbial flooding physical simulation experiments are not high.

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