煤层气井压力和温度监测系统设计

Design of pressure and temperature monitoring system of coalbed methane well

针对目前煤层气井压力、温度信息获取方式存在因人工采集导致信息孤岛、无法连续获得数据、压力传感器和温度传感器漏水等问题,提出了一种基于物联网的煤层气井压力和温度监测系统,给出了系统结构和软硬件架构,重点介绍了基于MEMS技术设计、真空封装、采用电阻负载调制方式发送数据的新型传感节点的设计方案。测试及试运行结果表明,该系统具有较好的可靠性、实时性和易操作性,其应用有效减少了现场人数,降低了安全事故发生频率。

In order to solve problems of existing pressure and temperature data collecting modes of eoalbed methane well such as information island caused by manual collection, inability to collect data consecutively, water leakage of pressure sensor and temperature sensor and so on, a pressure and temperature monitoring system of coalbed methane well was proposed. System structure was given as well as compositions of hardware and software. Design scheme of a new type of sensor was focused on, which adopted MEMS technology, vacuum encapsulation and resistive load modulation mode to send collected data. Testing and trail running results show that the system has better reliability, real-time performance and operability, which can reduce field personnel and accidents effectively.