Device for laser drilling

Abstract

Equipment for laser-drilling having an optical component or feed module with a set of lasers, the active optical fiber, in the form of hollow coil, the excitation of the laser active medium made through the coupling of the light emitted by laser diodes inside the active fiber, and a mechanical component that is an optic drill bit with a hollow rigid body and an end of any geometry, the drill bit having leaky orifices for the optical fibers connection or bundle of optical fibers with drill bit walls and orifices to allow the drilling and cooling fluids are released in the surface to be drilled, the optical fibers being provided from the feed module. The feed module generates high intensity light generation that through optical fibers is guided to the optic drill bit. The feed module and the optic drill bit are coupled to a drill string.

1 . A device for laser-drilling, comprising:
 a) an optical component or feed module, comprised of a plurality of lasers ( 200 ), each one of the lasers ( 200 ) comprising flexible optical fiber ( 320 ), wound in shape of hollow coil ( 210 ), and lasers diodes ( 220 ) perpendicularly connected to the coil ( 210 ) of active fiber; and   b) a mechanical component or optic drill bit ( 100 ), the drill bit being gifted of: a head ( 130 ) with orifices ( 110 ) and ( 120 ), and of a body ( 140 ),   wherein: i) the feed module is responsible for high intensity light generation that through the optical fibers ( 320 ) is guided to the optic drill bit ( 100 ), and ii) the feed module and the optic drill bit ( 100 ) are coupled to a drill string.   
     
     
         2 . The device, according to  claim 1 , wherein the lasers ( 200 ) have a geometry to check the same modular characteristic and assembling the said lasers above each other in the drill string. 
     
     
         3 . The device, according to  claim 1 , being wherein the device is able to accept heads ( 130 ) of any format. 
     
     
         4 . The device, according to  claim 1 , wherein the optic drill bit ( 100 ) head ( 130 ) has a spherical format. 
     
     
         5 . The device, according to  claim 4 , wherein the head ( 130 ) presents an angle that defines the operation maximum angle of the said optic drill bit ( 100 ). 
     
     
         6 . The device, according to  claim 5 , wherein the angle is determined from a line drawn in the middle of a ball and perpendicular to a connection direction to the optic drill bit ( 100 ) body connection with the drill string up to the spherical head ( 130 ) intersection with the remaining body ( 140 ) of the drill bit ( 100 ). 
     
     
         7 . The device, according to  claim 5 , further comprising providing direction control in the drilling through the optic drill bit format ( 100 ), wherein the operation angle control enables the said drill bit drill orifices in the angle said, relative to a middle line of the same. 
     
     
         8 . The device, according to  claim 1 , further comprising providing, for each point of laser light interaction with a stone to be drilled, an optical fiber ( 320 ) supplying high intensity laser light. 
     
     
         9 . The device, according to  claim 1 , wherein each optical fiber ( 320 ) that is associated to a laser ( 200 ) or multiple lasers ( 200 ) is combined to produce the light for drilling. 
     
     
         10 . The device, according to  claim 1 , wherein lasers ( 200 ) used in the drilling that are embedded with the optic drill bit ( 100 ) in the device consist of a standard tube employed in the drill string. 
     
     
         11 . The device, according to  claim 1 , further comprising lasers individually controlled ( 200 ) that feed the points of the light that interacts with the surface, to determine the drilling direction turning the said lasers on or off in specific regions of the drill bit ( 100 ) as needed. 
     
     
         12 . The device, according to  claim 1 , wherein the said orifices ( 110 ) are intended to the optical fibers connection ( 320 ) or bundle of optical fibers with the drill bit walls ( 100 ), while the orifices ( 120 ) allow drilling and cooling fluids to be released in the surface to be drilled. 
     
     
         13 . The device, according to  claim 1 , wherein each orifice ( 110 ) wherein optical fibers are fixed to be perpendicular to the optic drill bit ( 100 ) surface tangent in the point of intersection, ensuring the light incidence perpendicular to the surface to be drilled in the whole surface of the said optic drill bit. 
     
     
         14 . The device, according to  claim 1 , wherein the number of orifices ( 110 ) is determined from the drilled area by each optical fiber or bundle of optical fibers such that the whole drill bit ( 100 ) head ( 130 ) surface is able to the drilling function. 
     
     
         15 . The device, according to  claim 1 , wherein the optic drill bit ( 100 ) is a mechanical component that supports the optical fibers ( 320 ), and provides geometrical control to the high intensity light action and promotes the interface of the said drilling device ( 300 ) with the surface to be drilled. 
     
     
         16 . The device, according to  claim 1 , wherein the connection of the diodes laser ( 220 ) to the coil of active fiber ( 210 ) is effected considering the space available and the heat transfer needed to maintain the operation temperature of the said lasers diodes ( 220 ). 
     
     
         17 . The device, according to  claim 1 , wherein alternatively diodes laser ( 220 ) that are connected directly to optical fibers ( 320 ) and the light generated by the same are used for drilling, dispensing the coils ( 210 ) of fiber-laser. 
     
     
         18 . The device, according to  claim 1 , wherein the operation system is of the pulse type. 
     
     
         19 . The device, according to  claim 1 , wherein the operation system is of the ongoing type.