Improving efficiency of application foam sheets to remove liquid from gas wells

Abstract

During the late stage of gas field development, the solution of specific issues is required to increase the flow rates of wells and reduce their water cut. The accumulated experience in the development of gas and gas condensate fields indicates that the most effective way to remove water accumulating in wells is to introduce foaming compositions based on surfactants to the bottom of the wells. The most technologically advanced application was the use of solid and liquid surfactants. The installation of smaller diameter tubing in the wells ensured the removal of fluid from the bottom of the well, but after several months of operation the conditions for removing the liquid from the bottom of the well deteriorate. Technologies for using concentric elevator systems and plunger elevators are used on a single number of wells. The main technology for removal of liquid from the bottom of gas wells is currently the technology for processing bottom holes with solid surfactants.