Multi-perf fracturing process

Details Multi-perf fracturing process Multi-perf fracturing process

2006-04-28

2008-07-22

Gay, Jennifer H (Department: 3676)

Wells

Processes

Placing fluid into the formation

C166S050000, C166S297000

Reexamination Certificate

active

07401652

ABSTRACT:
A method is shown for fracturing a subterranean formation from a deviated well bore. A plurality of spaced fracture initiation points are created in the well bore. Hydraulic pressure is applied to all of the sets of perforations at the fracture initiation points to extend a plurality of spaced fractures in the formation in directions substantially perpendicular to the deviated well bore direction. The same perforated interval in the wellbore is shot two or more times, using a conventional perforating gun in order to achieve a desired hole count over a shorter distance. The perforating technique is combined with a pumping protocol which better insures that the fracturing fluid being pumped flows more evenly through each set of perforations upon the application of hydraulic pressure rather than the majority of the fluid entering only the first perforated interval of the wellbore.

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