内外管流道内气液两相流近红外吸收光谱特性及流量测量模型研究

项目名称： 内外管流道内气液两相流近红外吸收光谱特性及流量测量模型研究

项目编号： No.61475041

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 李小亭

作者单位： 河北大学

项目金额： 80万元

中文摘要： 油气开采及油气输运中流体不分离计量是实现低碳生产、节能减排的有效途径之一，气液两相流检测技术是油气井口流体不分离计量的关键技术基础，因而越来越被人们所重视。本项目针对这一问题而展开，在总结借鉴他人研究成果及项目组前期实验积累、理论分析与模型仿真的基础上，提出了利用近红外光谱吸收原理结合新型内外管流量测量装置进行气液两相流检测的新方法，根据内外管流道内气液两相流动特点，将不同波段的近红外光纤探头分置于内外管上，用于检测气液两相含率。项目组拟采用理论、实验、仿真研究相结合的方法，设计检测系统的最优结构，研究新测量系统内气液两相流动特性及近红外吸收光谱特性，利用气液两相流近红外吸收光谱信息处理技术，建立气液两相流相含率与红外特性关联的物理模型以及相关算法，实现气液两相流相含率的较准确检测，与内外管流量测量装置结合，实现气液两相流量测量，为气液两相流量不分离测量提供一种新思路。

中文关键词： 红外光谱；气液两相流；流量；检测；内外管流道

英文摘要： Energy is the world's hot issues of common concern. With the increasing tension of oil and gas resources, it is essential that how to achieve its scientific and rational development, utilization of low-carbon production and energy conservation. Because the measurement without the separation of crude oil and gas is an effective way, people pay growing attention to the key technical basis----gas-liquid flow detection. Based on the others' research results, the early experimental accumulation of the project team, theoretical analysis and model simulation, the project proposed the gas-liquid two-phase flow detection based on infrared radiation and infrared absorption characteristics. To design the optimal structure detection system which is to measure the characteristics of flow and infrared radiation and spectral absorption in the gas-liquid system, it combined theoretical, experimental and simulation. The project used infrared thermal imaging, infrared cameras and image recognition technology, and gas-liquid two-phase infrared absorption spectrum of information processing technology. More importantly, it established the physical model and related algorithms between gas-liquid two-phase flow rate and the infrared properties, and achieved the goal of a more accurate test, which provides a new way of thinking to measure gas and liquid together.

英文关键词： Infrared spectrum;Gas-Liquid Two-Phase Flow;Flow rate;Measurement;Dual pipe flow