Radial flow displacement physical model system

Abstract

The invention discloses a novel radial flow displacement physical model system used for researching edge-bottom water reservoir and oil well production performance and water discharging disciplines. The radial flow displacement physical model system can simulate oil well production performance of stratum with different pore structures and different permeability conditions and the water discharging disciplines to carry out laboratory experiment and research, and provides laboratory research and technical support for solving the problem of on-site oil well water discharging. The radial flow displacement physical model system is composed of an injection system (1), a three-dimensional radial flow physical model (2), an oil-gas-water three-phase metering system (3) and a data collection system (4). According to the radial flow displacement physical model system, conditions of edge-bottom water reservoir temperatures, pressure, stratigraphic dip angles and planar and longitudinal heterogeneity can be simulated, the oil well production performance, the water discharging situations, remaining oil distribution and follow-up water drive, polymer drive and other secondary and tertiary oil recovery technologies can be researched to improve the individual-well producing rate, and the oil recovery rate is further improved.

Description

technical field [0001] The present invention relates to a new radial flow displacement physical model system for studying the production dynamics and water discharge laws of oil wells with edge and bottom water reservoirs, which can simulate the production dynamics and water discharge laws of oil wells in formations with different pore structures and permeability conditions for indoor experimental research. Provide indoor research and technical support to solve the problem of water production from oil wells on site. Background technique [0002] Type here the description of the technical field paragraph The edge-bottom water-driven reservoir is abundant in natural energy and the oil-water interval is thin. During the development process, it is easy to form edge-bottom water intrusion, water channeling, and water flooding, and the water cut of the oil well rises rapidly. After the oilfield enters the stage of high water-cut or ultra-high water-cut water injection development,...

AI Technical Summary

Problems solved by technology

After the oilfield enters the stage of high water-cut or ultra-high water-cut water injection development, the contradictions in the plane, interlayer and intralayer of the oil layer become more prominent, and the injected water often breaks into the oil well along the high permeability strip or rhythmic layer, resulting in a decline in the productivity of the oil well and seriously affecting the development effect of the oilfield

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