稠油井蒸汽自动计量与远程监控系统的研发

发布时间：2018-05-29 00:26

本文选题：气液两相流 + 蒸汽计量　；参考：《中国石油大学(华东)》2015年硕士论文

【摘要】：在稠油热采工艺中,饱和蒸汽注入流量、干度、温度等关键注汽参数的自动、准确的测量是提高综合热效率和原油采收率的关键因素之一。本课题的研究目的是设计一套饱和蒸汽自动计量与远程监控系统,解决注汽参数不能实时计量和远程监控的难题。根据现场工艺要求和计量技术需求,确定采用现场终端计量系统、远程监控中心、远程用户三层实时监控的总体设计方案。基于模块化、层次化的设计思想,设计开发了蒸汽自动计量模块、温度控制模块、数据传输模块等硬件,采用LabVIEW开发了现场的终端主控软件和监控中心的远程监控软件。现场终端计量系统选用节流法来实现稠油井饱和蒸汽参数的在线测量,在平板电脑上进行现场实时监控。通过实时采集注汽管线上标准孔板节流产生的动态差压、孔板前的压力这两个关键参数,利用饱和蒸汽压力计算出温度、密度,然后由差压的静态值和动态特征,结合国际公认的饱和蒸汽计量效果较好的单参数模型(Murdock模型、Chisholm模型、林宗虎模型)和双参数模型(孔板噪声模型),计算出蒸汽的实时流量、干度。并以Lab VIEW函数的形式实现了各种蒸汽计量模型。为了适应新疆极端环境(高温、低温),系统设计了环境温度控制模块。远程监控中心采用GPRS实现与终端计量系统的双向无线通信,接收现场发来的数据,并根据通信协议实现数据解码,在服务器上进行远程实时监控。并以网页的形式发布,具有权限的用户的技术人员可以通过远程计算机(办公室/家/手机)以网页的方式进行远程监控。通过实验室测试,所设计的饱和蒸汽自动计量与远程监控系统运行稳定,计量数据准确、远程通信可靠,符合现场计量要求;人机界面友好,符合用户操作习惯。
[Abstract]:In the process of heavy oil thermal recovery, the automatic and accurate measurement of the key steam injection parameters such as saturated steam injection flow rate, dryness and temperature is one of the key factors to improve the comprehensive thermal efficiency and oil recovery. The purpose of this paper is to design a set of saturated steam automatic metering and remote monitoring system to solve the problem that steam injection parameters can not be measured in real time and remote monitoring. According to the requirements of field technology and metrology technology, the overall design scheme of three layers real-time monitoring system, remote monitoring center and remote user is determined. Based on the modular and hierarchical design idea, the hardware of steam automatic measurement module, temperature control module and data transmission module are designed and developed. The terminal master control software and remote monitoring software of monitoring center are developed by LabVIEW. On-line measurement of saturated steam parameters in heavy oil wells is realized by throttling method in the field terminal metering system, and real time monitoring is carried out on the flat computer. The dynamic differential pressure generated by the throttling of the standard orifice plate on the steam injection pipeline and the pressure in front of the orifice plate are collected in real time. The temperature and density are calculated by using the saturated steam pressure, and then the static and dynamic characteristics of the differential pressure are calculated. Combined with the internationally recognized single parameter model Murdock model (Lin Zonghu model) and two-parameter model (hole plate noise model), the real time flow rate and dryness of steam are calculated. Various steam metering models are realized in the form of Lab VIEW function. In order to adapt to the extreme environment (high temperature, low temperature) in Xinjiang, the environmental temperature control module is designed. The remote monitoring center uses GPRS to realize the two-way wireless communication with the terminal metering system, receives the data from the field and decodes the data according to the communication protocol, and carries on the remote real-time monitoring on the server. And published in the form of web pages, the technicians of authorized users can use remote computer (office / home / mobile phone) to remotely monitor the web page. Through the laboratory test, the design of saturated steam automatic measurement and remote monitoring system runs stably, the measurement data is accurate, the remote communication is reliable, conforms to the field measurement requirement, the man-machine interface is friendly, conforms to the user operation custom.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE938;TP277

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