Aspects of this topic are discussed in the following places at Britannica.
Natural gas reservoirs often contain appreciable quantities of heavier hydrocarbons held in the gaseous state. If reservoir pressure is allowed to decline during gas production, these hydrocarbons will condense in the reservoir to liquefied petroleum gas (LPG) and become unrecoverable. To prevent a decline in pressure, the liquids are removed from the produced gas, and the “dry gas”...
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