Gas composition

Natural gas composition varies by well, but most wells include methane, natural gas liquids, and various undesirable substances called impurities.

Typical composition of raw natural gas:

Prior to entering the gas transmission system, natural gas is processed in a processing facility. The processing facility separates the raw gas into methane, natural gas liquids, and impurities. The resulting useful products are pipeline-quality natural gas and natural gas liquids (NGLs).

Typical composition of pipeline-quality natural gas:

Typical natural gas liquid streams after processing: