Underground gas storage facilities are an integral part of the system of sustainable gas supply to consumers in the Russian Federation, ensuring uninterrupted gas supply all year round. Pre-transport gas treatment units are one of the key parts of underground gas storage facilities. These units bring the stored gas in line with the requirements for its transportation in the gaseous state to end consumers via main gas pipelines.
The article describes the specifics of the process ensuring single-phase condition of transported separator gas received from treatment of condensate-containing gas of Sovkhoznoye underground gas storage facility (Orenburg Oblast).
The temperature-and-pressure conditions of the low temperature separator, the loading volumes of the separator vessels, and other factors affecting the quality of the treated gas are reviewed by the authors.
Between 2020 and 2022, experts from Gazprom UGS LLC and Gazprom VNIIGAZ LLC, acting on PJSC Gazprom’s assignment, implemented a set of measures resulting in increased quantity of captured liquid at Sovkhoznoye underground gas storage facility gas treatment unit, thereby significantly improving gas quality in terms of water and hydrocarbon dew point values.

UNDERGROUND GAS STORAGE, LOW-TEMPERATURE SEPARATION, SEPARATOR GAS, WATER DEW POINT, HYDROCARBON DEW POINT, SINGLEPHASE TRANSPORTATION

E.N. Nesterenko, PJSC Gazprom (Saint Petersburg, Russia), E.N.Nesterenko@adm.gazprom.ru

E.V. Zatolokin, PJSC Gazprom, E.Zatolokin@adm.gazprom.ru

D.A. Pakhomkin, Gazprom UGS LLC (Saint Petersburg, Russia), D.Pahomkin@phg.gazprom.ru

A.V. Prokopov, Gazprom VNIIGAZ LLC (Saint Petersburg, Russia), A_Prokopov@vniigaz.gazprom.ru

D.N. Kevbrin, PJSC Gazprom, D.Kevbrin@adm.gazprom.ru