Non-Associated Petroleum Gas Mean?
Non-associated petroleum gas, also known as free gas or dry gas is a naturally occurring gas that is not dissolved in crude oil in a reservoir where oil is extracted. Sometimes, it is found above some fluids or under the oil present in the oil reservoir but in a state of equilibrium. This gas is also found in gas and condensate wells where there is little or no crude oil present. Trenchless drilling technology employing drilling rigs are used to extract this gas to the surface.
Trenchlesspedia Explains Non-Associated Petroleum Gas
Non-associated gas may or may not contain condensate production along with the gas. Raw natural gas is first collected from gas wells and processed at point to remove liquid water or any gas condensate if present. The processed raw gas is then transported by pipelines to a gas processing plant where the first purification process involves removal of any acid gasses, such as carbon dioxide and hydrogen sulfide, present in it using polymeric membranes. The gas is then further processed for the end user by removing other products that are present in it.
The final product can then be used for different purposes such as industrial heating, fuel for power stations, household fuel, fuel for vehicles using compressed natural gas and more.