Aubin's surface tension reducers are surfactants which are used in stimulation jobs worldwide, and adjusted to individual job requirements. Our team developed SS-920, a surface active agent used in acids, brines and water based fluids.
The reduction of capillary pressures between stimulation fluids and the producing fluids in the formation results in a rapid clean up after stimulation, and a lowering of the aqueous phase saturation in the rock. This contributes to a higher relative permeability to the producing phase. If additional non-emulsifiers or anti-sludge agents are included in the treating fluid, the surface tension will be slightly higher than with SS-920 alone.
SS-920 was used to reduce the surface tension of acids from their initial value of 72dynes/cm to approximately 20dynes/cm.