Halliburton X-Tend is the latest development in hydrochloric acid fluid system. It allows deeper penetration of live acid into the formation, increasing stimulated reservoir contact compared to conventional HCl systems. This innovative fluid system is applicable to matrix acidizing, acid fracturing, and wellbore cleanup treatments in carbonate formations. It’s the latest in advance fluid systems from Halliburton.
Extensive laboratory testing has been performed using this new HCl fluid system and benchmarked against straight HCl and emulsified acid at different temperatures and permeability ranges. X-Tend delays the acid reaction on the carbonate surface almost independently of the pumping rate. Furthermore, this unique system can be injected below or above the optimum rate, even at 28% HCl acid strength.
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