Natural-gas processing at ambient conditions (i.e., pentane and heavier) are called "natural-gas condensate" (sometimes also called "natural gasoline" or simply "condensate"). Natural gas is called "sweet gas" when relatively free of hydrogen sulfide; gas that does contain hydrogen sulfide is called "sour gas". Natural gas, or any other gas mixture, containing significant quantities of hydrogen sulfide, carbon dioxide or similar acidic gases, is called "acid gas." Raw natural gas can also come from methane deposits in the pores of coal seams, and especially in a more concentrated state of adsorption onto the surface of the coal itself. Such gas is referred to
Natural gas in Bolivia oil production really peaked, only to be followed by a decline in the next decade. That is when natural gas overshadowed oil and tin to become the main hydrocarbon exported by the country up to this date. Since the 1980s, the number of known reserves has increased substantially. It was during the 1990s that new major discoveries really increased natural gas production in Bolivia. “Major discoveries of natural gas since 1996 had boosted proven and probable gas reserves almost tenfold, to 48.7trn cu ft, by the end of 2004” The rise of natural gas as Bolivia’s most important export occurred