The premise that high annular velocities on rod pumped gas wells can cause liquid holdup in the casing is presented. A case is then made (using conventional vertical separator sizing equations) that the annular cross-sectional area is inadequate to allow gas-liquid separation to occur, preventing fluid from falling below the turbulent perforations to the pump intake. The concept of "Batch Pumping" is presented to industry as a simple, cost effective method to solve this separation problem for any well with this liquid holdup problem.

You can access this article if you purchase or spend a download.