China completes world's largest ultra-deep-water drilling rig

The world's largest and most advanced ultra-deep-water semi-submersible drilling platform, built recently by a Chinese company. 118 meters tall and weighing 42,000 tons, "Blue Whale 1" was constructed by Yantai CIMC Raffles Offshore Limted (CIMC Raffles). [Photo: China Business News]

The drilling rig has a maximum operational depth of 3,658 meters and a drilling depth up to 15,240 meters. The overall cost of the project is about 700 million US dollars. [Photo: China Business News]

The world's largest and most advanced ultra-deep-water semi-submersible drilling platform built by CIMC Raffles. "Blue Whale 1" was named and delivered to client in Yantai, in east China's Shangdong province on February 13, 2017. [Photo: China Business News]

The drilling rig boosts efficiency by 30 percent compared with traditional drilling platforms, and can be operated in waters all over the world. [Photo: China Business News]