High nitrogenous natural gas
Up to the present, two high nitrogen natural gas (HNNG) fields have been discovered in Poland. These are Cychry and Sulęcin fields, situated in the Polish Lowlands and characterized by nitrogen content over 90 %. HNNG is good quality raw material for production of liquid nitrogen but it is more often used for correcting nitrogen content to specification of natural gas pipelines of the domestic distribution network. However, its utility for the latter purpose is smaller than that of gas from the fields with a lower nitrogen content but not smaller than 70 %, which are not differentiated as a separate group of HNNG fields.
At present, exploitation of HNNG is limited to the Cychry field only. The extracted gas is used for correcting nitrogen content to specification of natural gas pipelines. In 2011, HNNG production was about 4.94 million m3.
Prepared by: Martyna Czapigo-Czapla