METHOD AND APPARATUS FOR PERFORMING LASER OPERATIONS DOWNHOLE

摘要

The disclosure, in on aspect, provides a method for performing a laser op eration in a wellbore that includes displacing a wellbore fluid with a laser -compatible medium proximate a location in the wellbore where a work is desi red to be performed; positioning a laser head proximate the laser-compatible medium; and passing a laser beam via the laser-compatible medium to the loc ation for performing the laser operation. In another aspect, the disclosure provides a laser apparatus for performing a laser operation at a worksite ha ving a fluid that includes a laser power unit that supplies laser energy to a laser head placed proximate the worksite; a fluid displacement unit that d isplaces at least a portion of the fluid adjacent the worksite with a laser- compatible medium; and a controller that operates the laser head to pass the laser beam to the worksite through the laser-compatible medium. In another aspect, the disclosure provides an imager associated with the laser apparatu s that provides images of the worksite.