| US 7,588,085 B2 | ||
| Method to improve the injectivity of fluids and gases using hydraulic fracturing | ||
| Andrew Acock, Inverurie (United Kingdom); Hassan Chaabouni, Kalimantan Timur (Indonesia); and Mark Norris, Cults (United Kingdom) | ||
| Assigned to Schlumberger Technology Corporation, Sugar Land, Tex. (US) | ||
| Filed on Nov. 21, 2006, as Appl. No. 11/561,986. | ||
| Claims priority of provisional application 60/748330, filed on Dec. 07, 2005. | ||
| Prior Publication US 2007/0125536 A1, Jun. 07, 2007 | ||
| Int. Cl. E21B 43/267 (2006.01) | ||
| U.S. Cl. 166—308.1 [166/280.1; 166/308.2] | 14 Claims |

| 1. A method of treating a subterranean formation adjacent an injection well, the method comprising:
introducing a fracturing fluid into the subterranean formation to create a fracture, wherein the fracturing fluid is a conventional
fracturing fluid other than produced water;
introducing proppant into the fracturing fluid, wherein the proppant has an average of 8/12 mesh size able to form a single
layer of proppant in the fracture;
introducing subsequently produced water into the subterranean formation wherein the produced water is injected below fracture
gradient.
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