Fig. 9From: Laser drilling: reviewing the effect of purging system and formation parametersA Effect of beam duration on the SE of liquid purging system compared to gas purging system for BG SS and LS. B Effect of beam power on the SE for BG SS and LS for liquid purging fluid (beam duration 4.0 s). C Effect of beam power on the SE of BG SS for both liquid and gas purging system (beam duration 4.0 s) [34]Back to article page