TY - JOUR AU - Zakharov, B. AB - New types of oil-well sucker-rod pumps developed by Ékogermet-M for oil production are described. All of the major units of these series-made pumps, namely, valve pairs and components, filters, draining devices, and casings of the pumps, have been improved. The results of operation of these pumps at various fields, which confirm their high efficiency, are reported. TI - Special types of sucker-rod pumps JF - Chemical and Petroleum Engineering DO - 10.1007/s10556-008-9039-1 DA - 2008-08-01 UR - https://www.deepdyve.com/lp/springer-journals/special-types-of-sucker-rod-pumps-EJ0aGhHTyy SP - 217 EP - 223 VL - 44 IS - 4 DP - DeepDyve ER -