小流量热式气体流量的数值模拟研究  

Study on Numerical Simulation of the Small Thermal Gas Mass Flow

作　　者：韩建[1,2] 黄颖[1,2] 牟海维[1,2] 刘鹤[1,2] 

机构地区：[1]东北石油大学电子科学学院,黑龙江大庆163318 [2]东北石油大学黑龙江省高校共建测试计量技术及仪器仪表研发中心,黑龙江大庆163318

出　　处：《自动化仪表》2016年第11期1-3,共3页Process Automation Instrumentation

基　　金：国家自然科学基金面上资助项目(编号:51574087、51374072)

摘　　要：为了研究火烧油层采油技术中火烧井空气(助燃剂)的注入状况和监测微小气体流量,提出了一种具有自动温度补偿功能及混合气体组分补偿功能的小流量热式气体质量流量测量方法。为适应井下狭小空间的复杂操作环境,在传统传感器结构的基础上,在管道中加入环形分布器的传感器优化结构。利用FLUENT进行流体仿真,验证该结构的可行性及测量原理数学模型的正确性。传感器优化设计为深入了解各层注入气体量和提高采收率提供了可靠的依据。In order to study the situation of air （combustion improver） injection and monitoring of small gas flow for wells on fire in In - situ Combustion （ISC） production technology, the measurement method for small thermal gas mass flow with automatic temperature compensation function and mixed gas composition compensation function is proposed. In order to adapt the complex operation environment of the underground narrow space,on the basis of traditional sensor structure,the structure of sensor is optimized by adding annular distributor in pipeline. The fluid simulation is conducted by using FLUENT, which verifies the feasibility of this structure, and the correctness of the mathematical mode of the measurement principle. The optimization design of sensor provides reliable basis for further understanding gas injection of each layer and enhancing oil recovery ratio.

关 键 词：石油 热式气体 质量流量计 传感器 环形分布器 火烧井 采油技术采收率 对流换热 温度补偿 

分 类 号：TH814[机械工程—仪器科学与技术] TP27[机械工程—精密仪器及机械]