| US 7,506,689 B2 | ||
| Fracturing fluids comprising degradable diverting agents and methods of use in subterranean formations | ||
| Jim B. Surjaatmadja, Duncan, Okla. (US); and Bradley L. Todd, Duncan, Okla. (US) | ||
| Assigned to Halliburton Energy Services, Inc., Duncan, Okla. (US) | ||
| Filed on Feb. 22, 2005, as Appl. No. 11/62,956. | ||
| Prior Publication US 2006/0185848 A1, Aug. 24, 2006 | ||
| Int. Cl. E21B 43/267 (2006.01) | ||
| U.S. Cl. 166—280.2 | 17 Claims |
| 1. A method of fracturing a subterranean formation, comprising:
providing a fracturing fluid comprising a degradable diverting agent that comprises at least one degradable material selected
from the group consisting of a chitin, a chitosan, a protein, an orthoester, a polyanhydride, an aliphatic polycarbonate,
a poly(orthoester), a poly(amino acid), a poly(ethylene oxide), and a polyphosphazene;
introducing the fracturing fluid into a subterranean formation at a pressure sufficient to create or enhance at least one
fracture therein;
allowing the degradable diverting agent to at least partially obstruct one or more pore throats in the fracture; and
permitting the degradable diverting agent to degrade.
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