Hydraulically actuated reciprocating low volume balance pumps have been introduced to “offer a new lease of life to mature gas wells.”
They’re designed to lift oil or, as part of deliquification, remove water from onshore and offshore gas producing wells. The pumps, which can be retrofitted, are operated by two hydraulic lines: one filled with oil, the other with water. Differential hydrostatic pressure between water and oil moves the pump’s internal piston downward. Application of pressure to the oil line drives the piston upward. This lifts water trapped above the travelling check and draws water into the lower chamber. Removing pressure from the hydraulic line allows the water line to return the piston after which pressure is applied to the hydraulic line.
This company’s complete deliquification system includes the balance pump, plus Torus safety valve, and pin-hole injection system. Full details are free.
Unit A, Hydropark, Tern Place
Denmore Road, Bridge of Don
Aberdeen AB23 8JX Scotland