Simple visible fracture-cave physical model with high temperature and high pressure resistance
A physical model and high-temperature-resistant technology, applied in the field of physical experiment models of fractured-vuggy reservoirs, can solve the problem of inability to observe fluid flow conditions and oil, gas and water distribution in real time, and the physical model of injection agents in fractured-vuggy reservoirs is invisible, and the size and connectivity relationship can be expressed problems such as coming out, to achieve the effect of facilitating maintenance and adjustment, reducing the cost of experiments, and making production simple
Pending Publication Date: 2020-02-21
SOUTHWEST PETROLEUM UNIV
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However, this model is a simplified physical model of fractured-vuggy reservoir injection, which simplifies the pores, fractures, and cavities in the fractured-vuggy reservoir into a regular model. The shape, size, and connectivity of pores, fractures, and caves are displayed, which are quite different from the actual fracture-cave reservoir system; the physical model of the injection agent in the fracture-cavity reservoir is invisible, and it is impossible to understand the fluid flow conditions and oil and gas conditions in the model. Real-time observation and recording of water distribution
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[0018] The present invention will be further described below according to the accompanying drawings, so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of specific embodiments. For those of ordinary skill in the art, as long as various changes are within the technical scope defined and determined by the appended claims, they are all included in the protection list.
[0019] see figure 1 , figure 2 .
[0020] A simple high-temperature and high-pressure visual fracture-cavity physical model, consisting of an advection pump 1, an intermediate container group, a fracture-cavity simulation body 5, a constant temperature box 6, a back pressure valve 9, a gas-liquid separator 10, a gas flow meter 11, and a computer 12 , a high-definition camera 13 and a strip-shaped light source plate 14, the crack hole simulation body 5 is provided with an injection port and a production outlet,...
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The invention relates to a simple visible fracture-cave physical model with high temperature and high pressure resistance. The physical model comprises a constant flux pump 1, an intermediate container group, a fracture-cave simulation body 5, a thermostat 6, a back pressure valve 9, a gas-liquid separator 10, a gas flowmeter 11, a computer 12, a high-definition camera 13 and a strip-shaped lightsource plate 14, wherein the fracture-cave simulation body 5 is provided with an injection port and a mining port; the injection port is connected with the intermediate container group and the constant flux pump 1, and the mining port is connected with the back pressure valve 9,the gas-liquid separator 10 and the gas flowmeter 11 sequentially; the fracture-cave simulation body is positioned in thethermostat 6, and is a cylindrical kettle; a fracture-cave simulation rock sample 16 with holes and fractures is arranged in the internal cylindrical space; visible windows 19 are arranged at the front and rear of the fracture-cave simulation body respectively, and correspond to a high-definition camera 13 and a strip-shaped light source plate 14 respectively; and the high-definition camera is connected with a computer 12. The physical model has small occupied space and low experimental cost, records fluid distribution and flow condition in fractures and caves in real time and has great guiding significance for development of fracture-cavity oil reservoirs.
Description
technical field [0001] The present invention relates to a physical experiment model of fracture-cavity reservoirs in the field of petroleum and natural gas exploration and development, in particular to a simple high-temperature and high-pressure-resistant visual fracture-cavity physical model, which can be used in related physical simulation experiments of indoor fracture-cavity reservoirs, and is a high-temperature and high-pressure fracture-cavity model Provide scientific guidance for the development and production of oil reservoirs. Background technique [0002] Fracture-vuggy carbonate reservoir is a reformed reservoir with pores, fractures and caves as the main seepage channels and storage spaces. Experimental simulation is a common method for simulating the development and production of oil and gas reservoirs. Referring to the geological data of actual reservoirs, a simplified fracture-cavity simulation body is designed and manufactured to simulate the actual productio...
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Login to View More IPC IPC(8): E21B43/20E21B43/16E21B49/00
CPCE21B43/168E21B43/20E21B49/00
Inventor 杜建芬李超凡郭平唐伟陈一健刘煌
Owner SOUTHWEST PETROLEUM UNIV