Device for measuring gas loss in gas storage injection and production process

Abstract

The invention discloses a device for measuring gas loss in a gas storage injection and production process. An experimental gas device is connected with an intermediate container connected with a gas pump through a gas injection pipeline, and the experimental gas device and the intermediate container are gathered and then connected with a gas injection end of a main guide pipe bidirectional component device through a pressure sensor I; a main guide pipe of the main guide pipe bidirectional component device is connected with a plurality of small rock core clamping units, and each clamping unit is connected to a piston water storage device through a guide pipe after being connected to a small guide pipe one-way afflux device; the gas outlet end of the main guide pipe bidirectional component device is connected with a gas-water separator, and a second pressure sensor is installed on a pipeline connected with the gas-water separator; the gas-water separator is divided into two pipelines which are connected with a gas collector and a liquid collector respectively; and the gas collector and the liquid collector are connected with a first micro-metering device and a second micro-metering device respectively. The device for measuring the gas loss in the gas storage injection and production process is small in error, can be combined according to different well-logging rock cores, and candirectionally and continuously simulate the gas change condition in the injection-production process.

Description

technical field [0001] The invention relates to the technical field of experimental devices, in particular to a device for measuring gas loss during injection and production of a gas storage. Background technique [0002] Due to the limitations of the device and core scale, the traditional single small core displacement device cannot accurately measure the gas loss during the high-speed gas injection process in the sandstone of the gas storage. Most of the equipment for simulation experiments have high requirements for core samples and poor experimental flexibility. The error is large, and problems such as continuous simulation cannot be directed. However, small cores have many advantages that cannot be replaced by other types of cores (large-size cores), such as: cores can truly represent underground reservoirs, and the acquisition method is simple. Therefore, designing a new experimental device based on a small core to measure the gas loss during the high-speed gas inject...

AI Technical Summary

Problems solved by technology

[0002] Due to the limitations of the device and core scale, the traditional single small core displacement device cannot accurately measure the gas loss during the high-speed gas injection process in the sandstone of the gas storage. Most of the equipment for simulation experiments have high requirements for core samples and poor experimental flexibility. The error is large, and it is impossible to orientate the continuous simulation and other problems

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