GALACTOMANNAN BASED WELL TREATING FLUIDS

摘要

A well fracturing fluid is shown which includes an aqueous base fluid, a hydratable polymer, such as a guar gum, and a suitable crosslinking agent for crosslinking the hydratable polymer to form a polymer gel. The hydratable polymer has a higher molecular weight which is achieved by improvements in the processing of the guar split. The higher molecular weight polymer provides improved performance in well fracturing operations.

主权项

1. A method of fracturing a subterranean formation, comprising pumping into the formation a fracturing fluid comprising an aqueous base fluid, a non-derivatized guar having an intrinsic viscosity greater than or equal to 16 dL/g and a crosslinking agent, wherein the fracturing fluid is pumped into the formation at a pressure sufficient to fracture the formation.