Patent ID: 7401652
Filing Date: 2008-07-22
Classification: E21B

Abstract:
1. A method of fracturing a subterranean formation having a deviated well bore penetrating the formation, the method comprising the steps of: drilling a deviated well bore into the formation; placing a casing in the deviated well bore; creating a plurality of spaced fracture initiation points in the well bore within a shortened perforation interval window, whereby a limited known flow rate of fracturing fluid will flow through each set of perforations at the initiation points upon the application of hydraulic pressure; wherein the shortened perforation interval window is created by shooting the interval more than once to create spaced sets of perforations with a standard perforating gun to thereby achieve a desired number of perforations while minimizing the distance between the spaced sets of perforations; wherein the method further comprises the steps of: achieving a target flow rate of fluid being pumped which is selected to create a desired backpressure across each of the sets of perforations in each of the perforated intervals; and wherein the target flow rate is achieved within the first 20 minutes of pumping.