With human society entry into the modern and civilized 21st century, natural gas is known as "green energy" among such four major kinds of energy as oil, coal, natural gas and electricity for its cleanness, high quality, high efficiency and other notable feat-ures. Natural gas has become the world's first choice for energy.
PetroChina Southwest Oil & Gas Field Company is China’s largest natural gas industrial base. Its consumer market includes Sichuan , Chongqing, Yunnan and Guizhou Provinces and surrounding areas. Up to the end of the year, it has over 1000 natural gas industrial users. Its natural gas is widely used in fertilizer, chemical, metallurgy, machinery, electronics, defense, automotive transportation, residential, CNG, LNG and other industries.