by Dachnial Dan Imansyah Introduction HPU (Hydraulic Pumping Unit) is one type of Sucker Rod Pump (SRP). Hydraulic Pump is used as an alternative to the artificial lift system. The use of this pump is carried out if there is not enough gas available in the field, so the gas lift system cannot be applied. … Continue reading Hydraulic Pumping Unit (HPU) – an alternative to the Artificial Lift System