Annular fracturing service tool system

Details Annular fracturing service tool system Annular fracturing service tool system

E - Fixed Constructions

21

B

E21B 43/26 (2006.01) E21B 47/09 (2006.01)

Patent

CA 2593170

An annular fracturing device and method for perforating and annular fracturing multiple zones of a wellbore on a single trip, the annular fracturing device being connected to coiled tubing. The annular fracturing device may include a locating device connected beneath a packing device used to hydraulically isolate a portion of the wellbore. The packing device may be releasably connected to an abrasive perforating device, such as a sand jetting sub. The sand jetting sub may be connected to the bottom of coiled tubing, which is used to run the annular fracturing device into the well bore and to supply the sand jetting sub with abrasive material to perforate the wellbore. The coiled tubing may also supply the sand jetting sub with fluid to circulate out of the sand jetting sub during the fracturing process.

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