What is associated gas? What does its process consists of?
Associated gas is natural gas obtained from fields that also contain oil. It can be found dissolved in oil or as a gas cap above the oil. In Mexico, associated gas production comes mostly from the Northeastern Marine Region (40%), followed by the South Region (32%) and Southwestern Marine Region (25%), while the North Region accounts for 3% of total associated gas production. Sour wet gas refers to gas with above standard sulfur levels. Therefore, sour wet gas must be processed in sweetening plants were excess acidity is eliminated, leaving sweet gas. Sour wet gas can be associated or non-associated. Sweet gas refers to gas with no contents or very little contents of sulfidric acid and carbon dioxide. Sour gas is sent to sulfur recovery plants. Sweet gas is sent to cryogenic plants were dry gas or methane is obtained as well as liquids from natural gas (ethane, LP Gas and natural gasoline). Associated gas accounts for 76% of the total gas processed in Pemex-Gas and Basic Petrochemicals
