Patent ID: 9168612
Filing Date: 2015-10-27
Classification: B23K,E21B

Abstract:
1. A laser material processing tool for processing material within a wellbore, the laser material processing tool comprising: a laser head assembly comprising a housing having at least one laser energy outlet and a plurality of purge fluid outlets concentrically disposed around said at least one laser energy outlet; at least one optical emitter suitable for emitting laser energy disposed within said housing; laser energy control means for directing said laser energy over a target surface; at least one automated purge fluid emitter adapted to emit a purge fluid through at least one of said plurality of purge fluid outlets; and synchronization means for synchronizing cyclic sequential emissions of said laser energy and said purge fluid directed at said target surface, said synchronization means comprises activation program for activating purge fluid flow through said purge fluid outlets in a user-defined programmable sequence, wherein said sequential emission of laser energy from said at least one optical emitter and emission of purge fluid from said plurality of purge fluid outlets comprises a laser beam is followed by a purge fluid jet which removes material weakened by the laser beam from the target surface to form a hole at the target surface.