Artificial-Lift Foamers

Aubin has developed a new range of “green” foamers certified for use in the North Sea and Europe. Aubin has focused on surfactant-based foaming agents suitable for a variety of brines, temperatures, and condensate levels, therefore unlocking a new gas-well de­liquefication solution. Both operators and service companies have verified the laboratory performance of the new product range, leading to field trials in the North Sea and Europe. ­Laboratory-testing methods involve a dynamic liquid-unloading technique by a test-rig apparatus and column tests by bubbling gas at the bottom of a cylinder, which aim either to remove a percentage of total liquids from the column or to evaluate the quality of the foam generated. The dynamic-liquid-­unloading-test rig simulates the well in the laboratory. The foam generated is collected in a tank and then sits on a balance, obtaining the weight of the fluids unloaded from the column. Gas purge at the bottom of the cylinder by a porous sinter reveals the quality of the foam and buildup time and half-life of the foam. Test results have shown a significant de­liquefication percentage, up to 90%, for highly loaded condensate wells.


STAY CONNECTED

Don't miss out on the latest technology delivered to your email weekly.  Sign up for the JPT newsletter.  If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.