Acid diversion is a technique used to enhance the outcome of acid stimulation, especially where there exists a contrast in permeability between producing zones. Amongst several chemical diversion methods, viscoelastic surfactant gelled acid is an effective way to promote greater acid coverage by preventing fluid loss into more permeable zones.
SSGA products are surfactant based gelling agents that achieve this outcome by using the increase in fluid salinity, as the acid reacts with the carbonate rock, to generate a viscous fluid that subsequently diverts remaining live acid towards less permeable zones.
Our range of SSGA products are designed to operate over a wide temperature range, from 100 – 300°F, allowing a specific product to be used for any given application and unlike polymers, they provide non-damaging viscosity and excellent thermal stability.