US 6,981,549 B2
Hydraulic fracturing method
Hugo Morales, Katy, Tex. (US); and Gadiyar Balkrishna, River Ridge, La. (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, Tex. (US)
Filed on Nov. 06, 2002, as Appl. No. 10/288,993.
Prior Publication US 2004/0211558 A1, Oct. 28, 2004
Int. Cl. E21B 43/26 (2006.01); E21B 47/00 (2006.01)
U.S. Cl. 166—250.1 23 Claims
OG exemplary drawing
 
7. A method for fracturing a subterranean formation comprising assessing the bottomhole temperature and the formation permeability, injecting a calibration fluid, an acid, or any mixtures thereof, assessing the temporary variation in temperature of the formation due to the injection prior to a fracturing operation of the calibration fluid, the acid, or any mixtures thereof, designing a fracturing fluid suitable for said temporary temperature variation and pumping said fracture fluid.