A fracturing fluid and method is disclosed comprising an aqueous metal hydrated galactomannan gum, buffered to a pH of from about 9 to about 11, and using reduced amounts galactomannan gum. Further, the invention provides a metal ion source, such as borate, to crosslink the galactomannan gum polymer...http://www.google.fr/patents/US6177385?utm_source=gb-gplus-shareBrevet US6177385 - Metal ion crosslinked fracturing fluid and method
