| 摘要 |
A system and technique are provided to provide propped hydraulic fractures in a subterranean formation including the steps of: injecting a fracturing fluid into the subterranean formation at a pressure sufficient to initiate and propagate at least one hydraulic fracture wherein the fracturing fluid comprises a proppant; when the at least one hydraulic fracture has reached a target size, adding to the fracturing fluid a predetermined amount of a diverter material wherein the diverter material comprises essentially particles between 10 to 30 weight percent of particles having a size larger than 2000 microns, between 1 and 15% by weight of particles between 1000 and 2000 microns, 10 to 40 percent by weight particles having a diameter in the range of 500 to 1000 microns, 40 to 70 percent by weight particles smaller than 500 microns, and comprising a material that degrades at conditions of the subterranean formation, the diverter material effective to essentially block flow of fracturing fluid into the at least one fracture; and continuing to inject fracturing fluid at a pressure effective to initiate at least one additional fracture within the subterranean formation. |
