Abstract
Jet pumps present unique challenges for corrosion inhibitors since they must perform in high temperatures, pressures, and shear conditions. These chemistries need to also be compatible with the power fluids and not cause any ancillary problems such as foaming or emulsions in the production system. These compatibility challenges are amplified with produced water with extremely high total dissolved solids (TDS) brines such as those encountered in the Bakken. Production from these wells often require the injection of fresh water to mitigate the formation of halite precipitates. Continuous corrosion inhibitor applications into systems where the produced high TDS water rates are low, can lead to emulsions, particularly if the power fluids are not heated. For Jet pumps with concentric string geometries set up to produce the fluids and gases separately, a batch treating corrosion inhibitor was developed to treat the outer gas annulus area. This paper describes laboratory testing results for various corrosion inhibitors used in jet pump applications, including products for continuous and batch treatment, and discusses the results obtained from field applications.
