Imbibition dynamic testing device under high temperature and high pressure

Abstract

The invention relates to an imbibition dynamic testing device under high temperature and high pressure. The imbibition dynamic testing device comprises a plug, a high temperature and high pressure kettle body end cover, a high temperature and high pressure kettle body, a data collecting thread guide, a comparative electromagnetic valve, a measuring electromagnetic valve, a weighing electromagnetic valve, a loading mechanism, a measuring core, a comparative core, a heating pipe, a cooling pipe, a pressurizing port, a switch, a pump, an experimental liquid and a computer. The high temperature and high pressure kettle body is of a columnar structure and is made from a stainless steel material, the upper part of the kettle body is connected with the high temperature and high pressure kettle body end cover and the lower part of the kettle body is provided with the pressurizing port which is connected with the switch and the pump. The cooling pipe is located on the high temperature and high pressure kettle body, the comparative core, the measuring core, the loading mechanism, the weighing sensor, the comparative electromagnetic valve and the measuring electromagnetic valve are located in the high temperature and high pressure kettle body, and the data collecting thread guide is connected to the outer computer through the high temperature and high pressure kettle body end cover. The device provided by the invention can test imhibition waterflooding behavior of the core under the high temperature and high pressure for analyzing the imhibition waterflooding efficiency of the core under an oil deposit condition. Meanwhile, the device can adjust the temperatures of the high temperature and high pressure kettle body and the inner experimental liquid and tests the imhibition waterflooding behaviors at different temperatures.

Description

technical field [0001] The invention relates to an experimental device for measuring imbibition dynamics under high temperature and high pressure conditions, in particular to an experimental device capable of measuring the dynamics of imbibition displacement under oil reservoir conditions for a long time. Background technique [0002] In porous media, the displacement of wet phase from non-wet phase due to capillary force is defined as spontaneous imbibition. For porous media composed of fractures and matrix, the spontaneous imbibition of oil from the matrix into the fracture system due to capillary force is a very important recovery mechanism. It is of practical significance to guide the efficient development of porous media reservoirs composed of fractures and matrix. [0003] At present, most of the experimental conditions of the device are normal temperature and pressure, and the experimental conditions of the improved imbibition dynamic measurement device in the later ...

AI Technical Summary

Problems solved by technology

For actual reservoirs, the imbibition flooding environment is a high temperature and high pressure environment, so the experimental results obtained by using these imbibition dynamic measurement devices cannot truly reflect the imbibition dynamics of the actual reservoir

The deviation of the experimental results caused by the insufficiency of the experimental equipment can only be reduced or avoided by improving the equipment. Therefore, in order to more realistically simulate the imbibition dynamics under the formation conditions, it is necessary to design an Experimental setup for the determination of suction dynamics

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