Test device of core interporosity flow coefficient

Abstract

The invention relates to a test device of a core interporosity flow coefficient. The test device is mainly composed of a micro flow pump, a full diameter core holder, a heating temperature control system, an annular pressure control system, an internal pressure monitoring system, a return pressure control system, a computer control system and a fluid metering system. In a test, installing a full diameter core having cracks in the full diameter core clamper, starting the computer control system, the micro flow pump, the heating temperature control system, the annular pressure control system, the internal pressure monitoring system, the return pressure control system and the fluid metering system, setting certain return pressure, pumping fluid in the full diameter core clamper at certain flow rate, starting a return pressure valve after the interior of the core keeps certain pressure and stabilizes to generate cross flow in the core, testing the liquid phase flow rate at an outlet end, monitoring the time history of various pressures to obtain the flow rate and pressure parameter in the case of core cross flow, and obtaining the core interporosity flow coefficient through an interporosity flow coefficient computing theory.

Description

technical field [0001] The invention relates to an experimental device for testing the channeling flow coefficient of a rock core, in particular to an experimental device for measuring parameters when the channeling flow of the rock core occurs. technical background [0002] The channeling coefficient is one of the important parameters in the study of fractured reservoirs. However, the research on the channeling coefficient at home and abroad mostly focuses on the well test analysis. The channeling coefficient is obtained from the well test analysis curve. There is almost no laboratory research, and the design and development of experimental equipment is still blank. However, in the fine reservoir description of fractured reservoirs, it is necessary to establish more complex fracture geological models and corresponding flow models. parameters, so the experimental research on the core channeling coefficient is particularly important. [0003] At present, the channeling coeff...

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Problems solved by technology

[0002] The channeling coefficient is one of the important parameters in the study of fractured reservoirs. However, the research on the channeling coefficient at home and abroad mostly focuses on the well test analysis. The channeling coefficient is obtained from the well test analysis curve. There is almost no laboratory research, and the design and development of experimental equipment is still blank. However, in the fine reservoir description of fractured reservoirs, it is necessary to establish more complex fracture geological models and corresponding flow models. parameters, so the experimental research on the core channeling coefficient is particularly important

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