Liquid interface sensing detection method and device

Abstract

The invention relates to a liquid interface sensing detection method and a liquid interface sensing detection device. The liquid interface sensing detection method and the liquid interface sensing detection device are suitable for detecting an interface positions of two or more types of liquid in the same cavity in the depth direction. The liquid interface sensing detection method comprise the following steps of: operating the same heating source to act on the liquid in the cavity, and enabling the temperature of the liquid to change; when the temperature of the liquid changes, continuously detecting to obtain dynamic temperature information of a plurality of different depth positions of the liquid in a specific time period; and analyzing and processing the obtained dynamic temperature information to obtain different positions of a liquid temperature change rule so as to position the interface of each liquid. The liquid interface sensing detection method and the liquid interface sensing detection device can achieve detection and acquisition of temperature information through using a distributed optical fiber system, have the advantages of high resolution ratio, high sampling rate,high precision and the like, can obtain related data without manual intervention, save labor cost, and reduce cavity dissolving cost.

Description

technical field [0001] The invention relates to the identification of the liquid interface, especially the identification of the oil-water interface in the dissolved cavity of the gas storage. Background technique [0002] The construction of gas storage is accompanied by the proposal of the strategic energy storage system. my country's energy storage started late and has a poor foundation. There is still a big gap between the construction and research of gas storage and developed countries such as the West. The application of measuring devices during the construction of the gas storage is of great significance to the field measurement technology, which helps to accurately calculate the oil-water interface of the dissolved cavity, and increases the safety of the large-scale dissolved cavity, especially the reverse circulation dissolved cavity, of the rock salt gas storage. However, the existing methods for identifying the oil-water interface are complicated in structure and ...

AI Technical Summary

Problems solved by technology

The application of measuring devices during the construction of the gas storage is of great significance to the field measurement technology, which helps to accurately calculate the oil-water interface of the dissolved cavity, and increases the safety of the large-scale dissolved cavity, especially the reverse circulation dissolved cavity, of the rock salt gas storage. performance and reduce the cost of gas storage solution cavities, however, the existing methods for identifying the oil-water interface are complex in structure and high in cost

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