SYSTEMS AND METHODS FOR REDUCING TREATING PRESSURE OF CROSSLINKED CARBOXYMETHYL CELLULOSE-BASED FRACTURING FLUIDS.

摘要

Systems and methods for reducing treating pressure of a fracturing fluid. The systems and methods may include a liquid; one or more low molecular weight carboxymethyl celluloses; one or more high molecular weight carboxymethyl celluloses; and a transition metal crosslinking agent. The average molecular weight of the one or more high molecular weight carboxymethyl celluloses may be at least 1.5 times greater than the average molecular weight of the one or more low molecular weight carboxymethyl celluloses. The one or more low molecular weight carboxymethyl celluloses may have a molecular weight up to approximately 500,000 and the one or more high molecular weight carboxymethyl celluloses may have a molecular weight greater than approximately 750,000.