System and Method for Forming Cavities

A method, comprising:

• moving a jetting tool downhole in a wellbore drilled into a formation;
• pumping an abrasive fluid down through the jetting tool and out through a plurality of jetting nozzles to form jets of the abrasive fluid which act against a surrounding wall;
• orienting the jets such that a rebound effect of the jets does not detrimentally impact the jetting tool;
• and
• using the jets to cut perforations through the surrounding wall.

A method, comprising:

• forming a jetting tool with a central axis, a flow passage extending along the central axis, and a plurality of jetting nozzles in communication with the flow passage;
• orienting the plurality of nozzles at an angle with respect to the central axis;
• and
• selecting the angle such that jets of fluid flowing outwardly through the plurality of nozzles are directed outwardly and toward a lead end of the jetting tool.