Environmental Monitoring Technologies And Environmental Impact Analysis On Gas Test At Pu Guang Gas Field

Pu Guang gas field is a sulfur-rich gas field. During the gas field development, the emission of SO2is a unavoidable environmental problem and needs appropriate environmental monitoring and analysis. Currently the knowledge on the diffusion of pollutants during gas test for sulfur-rich gas fields and the corresponding monitoring techniques are not mature. Considering the characteristics of the environmental impact of Pu Guang gas field gas test operations, this thesis carries out environmental monitoring technologies and the law of diffusion of pollutants in gas test and clarifies the main features of its impacts on the surrounding environment in order to form reasonable and effective monitoring techniques to meet the needs of the actual work.By analyzing the gas field environment, working characteristics and monitoring requirements, the thesis proposes gas test operations environmental monitoring methods based on electrochemical sensors and environmental monitoring technology on sour gas test based on a wireless multi-point remote gas monitoring system. The statistical analysis shows that the solution meets the measurement consistency requirement and can effectively monitor the diffusion of atmospheric pollutants such as SO2, H2S, etc. during the process of gas test and it can meet the environmental monitoring requirements on gas test. It plays important roles in practical applications such as environmental monitoring in gas test and leak monitoring during the put-to-trial precedure of the sour gas gathering system and the purification plant.By investigating the environment conditions of the survey area, gas test conditions, weather and terrain conditions, and other relevant information, the thesis analizes the gas test environmental monitoring results, explains the main factors that impact the distribution characteristics of sulfur dioxide, explains the distribution characteristics of sulfur dioxide and its formation laws, and evaluates the affections to the surrounding atmospheric environment during gas test. The thesis utilizes EIAProA atmospheric dispersion software to validate the compliance between the computing results of the dispersion model and the actual monitoring results. The thesis proposes an air pollution dispersion model suitable for gas test at sulfur gas fields.Innovation of the thesis:Based on the distribution characteristics of gas test environmental monitoring results, it validates the compliance between the computing results of the dispersion model and the actual monitoring results. This compliance provides the foundation for proposing an air pollution dispersion model suitable for gas test at sulfur gas fields.