| 摘要 |
The present invention provides a fracturing fluid composition and method for fracturing substerranean formations penetrated by a well bore. The fracturing fluid comprises an aqueous fluid, a gelling agent, a crosslinking agent comprising a zirconium chelate or an aluminum chelate and a sufficient quantity of carbon dioxide to reduce the pH of the fracturing fluid to a level below about 5.5. The fluid is injected into the formation through the well bore at a rate and pressure sufficient to create at least one fracture in the formation.
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