The natural gas treatment plant is always located remote and difficult areas. Natural gas is flammable explosive gas with high concentration toxic and harmful Material. Natural gas process is easy to meet emergency.Combined with the actual situation in production, it is the key to improve the effect of teaching and practice with careful preparation, scientific and orderly arrange and strict examination system.

储气库注采管柱井下腐蚀环境复杂，致使管柱腐蚀穿孔或者断裂落井，直接威胁到储气库安全运营。以某储气库为研究对象，分析注采气过程中管柱腐蚀机理和影响因素，制定相应的防治措施，以延长气井管柱的使用年限，保障储气库安全、平稳运行。分析表明：管柱腐蚀主要为电化学腐蚀和冲蚀，电化学腐蚀是由CO2和H2O引起，腐蚀部位在1900 m以上，腐蚀形态为均匀腐蚀和小孔腐蚀；冲蚀发生在采气期和注气期，安全阀和滑套最先发生冲蚀。防腐措施适合采取控制注采气量和油管内投缓蚀棒的方法，腐蚀监测技术适合采取挂片失重法。

Drilling crew had the characteristic of strong liquidity,harsh conditions,field risk,etc. Based on the drilling crew for practice teaching activities,several problems needing attention were put forward. First,the preparation work needed to do fully; second,enough safety education must be done; third,reasonable use of the time and place to improve the efficiency of internship. The examining way should be reformed to increase the written test as the proportion of the final grade. Finally,several problems needing attention were proposed that improved the effect of the practice teaching effectively.

Combining the teaching practice of Oil and Gas Field Applied Chemistry, some experience of teaching and examination methods was put forward.First of all , the scientific and reasonable design of teaching content can stimulate students learning enthusiasm.Secondly , paying attention to physical , experimental video and 3 d demonstration teaching were proposed.Third, be good at discovering characteristics of students and motivating interest in learning.Finally, reforming the inspection way and increases of the innovative experiments as the proportion of the final grade were put forward.Combining with the teaching practice , the teaching effect and quality were improved effectively.