Abstract
Abstract Dewatering coalbed methane and low-pressure gas wells has been a challenge for oil and gas producers. When compared to ESP and PC pumping, sucker rod pumping is a very forgiving method and wells can be pumped to very low pump intake pressure without damaging the pumping equipment. This has generated a strong interest in using sucker rod pumping in dewatering gas wells. Quite often operators try to use sucker rod pumps and rod pump system designs that are the same types used for pumping single phase (liquid) fluids and they do not achieve the desired fluid removal and are not designed to handle sand, coal fines and other solids encountered in this type of production. New designs in sucker rod-pumping equipment and rod-pumping systems for high GLR, coal fines and solids have greatly changed the approach to dewatering unconventional gas resources. This paper will examine the new equipment and design criteria being used to help dewater gas wells.
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