Composition Temperature Separation @ 10 minutes Observation Break Colour Interface Sediment Matrix Stimulation+Crude (1:1) 80 °F 100% separation at 1mins:40secs Dark brown homogenous mixture was formed upon agitation Clean Colourless acid fluid Sharp None   150 °F 100% separation at 25 secs Dark brown homogenous mixture was formed upon agitation Clean Colourless acid fluid Sharp None   190 °F 100% separation at 18 secs Dark brown homogenous mixture was formed upon agitation Clean Colourless acid fluid   None

Table 8: Emulsion break analyses for matrix stimulation + crude (1:1) fluid systems.