%0 Journal Article %T DEVELOPMENT AND EXAMINATION OF PARAMETERS OF PNEUMATIC SUCKER-ROD UNIT FOR OIL EXTRACTION %A Marysheva, M.. %A Shishkin, N.. %K hydraulic sucker-rod pump unit, superficial equipment, working liquid, gas factor, pneumatic sucker-rod pump unit, column of rods, pneumatic cylinder, centrifugal compressor, receiver, oil and gas separator %J Vestnik of Astrakhan State Technical University %D 2014 %N 2014 %P 5 %I Astrakhan State Technical University