Well site environmental monitoring system is mainly used for real-time monitoring of combustible and toxic gases. Natural gas is flammable and explosive gas. If it reaches the explosion limit, it will flash and explode when it encounters sparks, which will cause great life threat to the operators on site. Therefore, it is particularly important to monitor the concentration of combustible gas and toxic gas in the operation site.

The layout of gas monitoring points at the operation site is as follows:

After investigation and combined with the actual situation of the site, our company puts forward the following two gas concentration monitoring schemes. These two schemes can be connected to the "insight" data acquisition system being used on site, and can query the historical data and historical curve of each monitoring point and set hierarchical alarm:

(1) Monitoring scheme of wired gas probe

The wired gas probe is directly connected to the on-site wireless interface box, and the gas concentration signal monitored by the probe is transmitted to the interface box, and then connected to the data acquisition system through wireless way to realize the online gas concentration monitoring and alarm at different monitoring points.

(2) Wireless gas probe monitoring scheme

The wireless gas monitoring system of Honeywell is selected. The system can monitor toxic and combustible gases in real time and connect with the "insight" system on site seamlessly. It has been widely used in major oil fields. Its basic layout is to set gas concentration monitoring probes at each monitoring point in the well site, and place wireless receivers in the data acquisition room or guard room to receive signals from various probes wirelessly Each gas concentration monitoring and upper and lower limit alarm.