Song Da 6.10 Enterprise of the Nam Chien Hydropower.
Song Da 6.10 Enterprise of the Nam Chien Hydropower.
Strive end of two wells by drilling inclined Robbins. To celebrate 65 years of competition in August Revolution and National Day 2-9, personnel and factory workers are striving Song Da 6.10 completion of wells drilled inclined boring expansion of 2, with Nam Chien Hydropower Robbins drill before 2-9-2010. This well is 170 meters long, 1.8 meters in diameter and is boring first four wells drilled in a total of five works, with a total length of up to 800 meters. Nam Chien Hydropower projects are now building length well record in Vietnam