The operator is then paid from the run ticket. This is a measure of the impurities of the oil. Most natural gas coming from wells contains impurities that must be removed in the field in a process called gas conditioning before the pipeline will accept it. The gas conditioning equipment is installed in the field next to the gas wells. Water is taken out in a process called dehydration and corrosive gasses such as carbon dioxide and hydrogen sulfide by sweetening .
Some wells produce wet gas containing a valuable liquid hydrocarbon called condensate.
Wet gas is almost never put in a pipeline. The valuable liquid hydrocarbons are removed in the field by a gas processing plant . In some wells there are two or more producing zones. Two packers are used to isolate the production which is brought up two tubing strings. Most offshore platforms are fixed and have legs called the steel jacket that are pinned to the ocean bottom.