Systems and methods to evaluate a foamer for unloading liquid in oil and gas wells of mature fields

Abstract

Systems and methods are provided for evaluating a foamer for use in an oil and gas well for unloading of a liquid. The systems and methods provide for methods including: (a) combining (i) an aqueous phase, a hydrocarbon phase, or both an aqueous phase and a hydrocarbon phase in a predetermined proportion with (ii) a foamer to obtain a liquid, wherein the foamer is in a predetermined concentration in the liquid; (b) sparging the liquid with a gas at a predetermined gas flow rate to create a foam from at least some of the liquid and at least some of the gas; and (c) during or after the step of sparging, determining the amount of the liquid in the foam, wherein the step of determining is performed one or more times.

Dependencies are inferred from the claim text.