Smith Lift hydraulic diaphragm electric submersible pumps (HDESPs) are positive-displacement, double-acting diaphragm pumps with a downhole motor. They are designed for use in low-liquid-rate coalbed methane and other oil and gas shallow wells that require artificial lift to remove water from the wellbore.
These pumps can be set above or below the perforations and are designed to run in wells that are less than 2,500 ft deep and that produce less than 200 bbl/d. HDESPs are designed to withstand aggressive chemical environments downhole and can handle a wide variety of fluids and up to 2% sand, coal, fines and H2S/CO2. With no moving parts, they are simple to install, operate, and maintain. They use only one third the power required to drive a conventional pump, can handle higher volumes, are extremely reliable, and are suitable for environmentally sensitive areas.