A new scientifi c approach to gas compression using jet pump-compressor units has been developed. The new patented technical solution offers an opportunity for the effective application of jet pump-compressor units for the compression of various gases up to pressures of 10...40 MPa. The purpose of the ongoing research work is to develop new scientifi c principles for gas compression using jet pump-compressor units. The new scientifi c approach is associated with the improvement of the pump-compressor unit, with the provision of conditions for the periodic connection of the ejector during the implementation of a cyclic low-frequency working process. The results of the research fi ndings can be used to create energy-effi cient technologies for the compression and pumping of various gases; it can be methane, associated petroleum gas, nitrogen, carbon dioxide, air, hydrogen or other gases. The creation of cheaper and more economical pump-compressor units will allow for the solution of urgent production problems in hydrocarbon production, including those in remote Arctic oil and gas fi elds.