Fracturing fluids containing bouyant inorganic diverting...

Details Fracturing fluids containing bouyant inorganic diverting... Fracturing fluids containing bouyant inorganic diverting...

E - Fixed Constructions

21

B

166/21

E21B 43/26 (2006.01) C09K 8/62 (2006.01)

Patent

CA 1210320

ABSTRACT OF THE DISCLOSURE The growth of upward vertical fractures during a hydraulic fracturing process is inhibited or prevented by (1) initiating the fracture with a first fluid which is a pad fluid, and (2) extending the fracture with a second fluid comprising a carrier fluid and a bouyant inorganic diverting agent. The second fluid is preferably pumped at a minimum rate to extend the fracture and carry the diverting agent without screening out. After the diverting agent is implaced, a viscous pad fluid and fracture fluid are subsequently pumped at treatment rates and pressures to complete the fracturing process.

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