Petroleum Engineering and Natural Gas Recovery

Advanced Natural Gas Engineering

 Natural gas is a subcategory of petroleum which is naturally occurring complex mixture of hydrocarbons, with a minor amount of inorganic compounds. Geologists and chemists agree that petroleum originates from plants and animal remains that accumulate on the sea floor along with the sediments that form sedimentary rocks. The contributing factors are thought to be bacterial action; shearing pressure during compaction, heat and natural distillation at depth; possible addition of hydrogen from deep-seated sources; presence of catalysts. Because natural gas is petroleum in a gaseous state, it is always accompanied by oil that is liquid petroleum. Non associated gas is from reservoirs with minimal oil. Associated gas is the gas dissolved in oil under natural conditions in the oil reservoir. Gas condensate refers to gas with high content of liquid hydrocarbon at reduced pressures and temperatures. Natural gas reserves include Proved reserves and Potential resources. Proved reserves are the quantities of gas that have been found by the drill. Potential resources constitute those quantities of natural gas that are believed to exist in various rocks of the Earth’s crust but have not yet been found by drill.