Patent ID: 8177526

Claim:
A gas well dewatering system configured to pump well liquid to an outlet for discharge from the gas well, the gas well dewatering system comprising: a hydraulic fluid reservoir, an electric motor, a hydraulic pump, and a positive displacement oscillating pump, each secured to form a cylindrical stack having a first diameter substantially smaller than a second diameter of the gas well, the cylindrical stack for insertion into and retrieval from the gas well; the hydraulic fluid reservoir in fluid communication with the electric motor and configured to transfer the hydraulic, lubricating fluid through an interior of the electric motor to the hydraulic pump for powering the positive displacement oscillating pump; the electric motor having the interior configured to receive the hydraulic, lubricating fluid from the hydraulic fluid reservoir for lubrication of the electric motor and having the interior configured to transfer the same hydraulic, lubricating fluid to the hydraulic pump for powering the positive displacement oscillating pump; the hydraulic pump powered by the electric motor, the hydraulic pump configured to draw the hydraulic, lubricating fluid through the interior of the electric motor and to subsequently pump said hydraulic, lubricating fluid into a hydraulic circuit; and the positive displacement oscillating pump being powered by the hydraulic pump and configured to pump the well liquid from the gas well to the outlet.