Methods of fracturing sensitive formations

A method of completing a well in a subterranean formation, comprising:

• providing a hydrajetting tool disposed within a well bore in the subterranean formation;
• perforating a first region in the subterranean formation by injecting a pressurized fluid through the hydrajetting tool into the subterranean formation, so as to form one or more perforation tunnels in the first region;
• initiating one or more fractures in the first region by injecting a fracturing fluid into at least one of the one or more perforation tunnels in the first region through the hydrajetting tool;
• pumping additional fracturing fluid into at least one of the one or more fractures in the first region through an annulus between an outer surface of the hydrajetting tool and a wall of the well bore, so as to propagate at least one of the one or more fractures in the first region, wherein the additional fracturing fluid is pumped continuously through the annulus as soon as the one or more fractures are initiated;
• moving the hydrajetting tool up hole simultaneously with pumping additional fracturing fluid into at least one of the one or more fractures in the first region while substantially simultaneously perforating a second region in the subterranean formation by injecting a pressurized fluid through the hydrajetting tool into the subterranean formation, so as to form one or more perforation tunnels in the second region;
• initiating one or more fractures in the second region by injecting a fracturing fluid into at least one of the one or more perforation tunnels in the second region through the hydrajetting tool;
• pumping additional fracturing fluid into at least one of the one or more fractures in the second region through the annulus between the outer surface of the hydrajetting tool and the wall of the well bore, so as to propagate at least one of the one or more fractures in the second region, wherein the additional fracturing fluid is pumped continuously through the annulus as soon as the one or more fractures are initiated;
• and
• moving the hydrajetting tool up hole simultaneously with pumping additional fracturing fluid into at least one of the one or more fractures in the second region.

A method of completing a well in a subterranean formation, comprising:

• providing a hydrajetting tool disposed within a well bore in the subterranean formation;
• perforating a first region of the subterranean formation by injecting a perforating fluid through the hydrajetting tool into the subterranean formation, so as to form one or more perforation tunnels in the first region;
• initiating one or more fractures in the one or more perforation tunnels in the first region by pumping a fracturing fluid through the hydrajetting tool;
• injecting additional fracturing fluid into at least one of the one or more fractures in the first region through both the hydrajetting tool and an annulus between an outer surface of the hydrajetting tool and a wall of the well bore, so as to propagate the one or more fractures in the first region, wherein the additional fracturing fluid is injected continuously through the annulus as soon as the one or more fractures are initiated;
• perforating a second region of the subterranean formation by injecting the perforation fluid through the hydrajetting tool into the subterranean formation, so as to form one or more perforation tunnels in the second region;
• fracturing the second region by injecting fracturing fluid into at least one of the one or more perforation tunnels in the second region;
• and
• pumping a sufficient quantity of fracturing fluid into the well bore while fracturing the second region to at least partially plug at least one of the one or more fractures in the first region.