针对川东北地区敏感脆弱的生态环境及含剧毒高酸天然气的资源禀赋，始终坚持并严格落实“环保优先”的工程建设指导思想，大力推行以“节能环保、绿色低碳”为主要特征的生态工程建设模式，将系统优化思想与节能环保技术创新相结合、清洁生产措施与严格监管相结合，在优化设计、清洁生产、环境监测全过程推进节能环保技术的创新与应用，杜绝了重特大环境污染和生态破坏事故的发生，最大限度减少了工程建设对原始生态环境和人文历史环境的影响，实现了污染物排放浓度、总量和环境质量达标，履行了将川气东送工程建设成“生态工程”、把普光气田建设成“绿色气田”、把川气东送管道建设成“绿色能源大走廊”的社会承诺。

In light of the sensitive and vulnerable environment, and high-toxic, high-acid gas reserves in the northeast area of Sichuan Province, the Project upheld the guideline of environmental first and implemented a construction model featuring energy conservation, environmental protection, eco friendly and low carbon emission. It combined the concept of systemic optimization and technological innovation, incorporated strict supervision into clean production, and promoted the innovation and application of energy conservation and environmental protection technologies throughout the entire process, ranging from optimal design, clean production to environmental supervision. Thanks to the above measures, the Project put an end to large-scale accidents caused by environmental pollution or ecological damages; minimized the negative effects on original eco-environment and local cultural and historical assets, and reached the standards of pollutant concentration, aggregation and environmental quality. As a result, the Project fulfilled its social commitments of making Sichuan-East gas transmission project an eco-friendly project, the Puguang gas field a “Green Gas Field”, and the pipeline a green energy corridor.