Patent ID: 8691735

Claim:
A method of fracturing a subterranean formation comprising the steps of: (a) blending together water and a hydratable polymer capable of gelling in the presence of a crosslinking agent; (b) allowing the hydratable polymer to hydrate to form a hydrated polymer solution; (c) adding a crosslinking agent comprising a polyboronic compound to the hydrated polymer solution to produce a crosslinked fracturing fluid, wherein the polyboronic compound has at least one N—B bond or a B—Si bond or is selected from the group consisting of 2,5-thiophenediboronic acid (TDBA), 1,4-benzenediboronic acid (BDBA), 4-4′-biphenyldiboronic acid (BPDBA) and combinations thereof; and (d) injecting the crosslinked fracturing fluid into the subterranean formation to fracture the formation.