Add Yahoo as a preferred source to see more of our stories on Google. Men digging a well hauled up a 1,100-pound sapphire cluster worth $100 million, the BBC reported. The cluster, named the ...

Drilling in its broadest sense is any process that involves making a circular hole in a solid material or hard surface using a boring tool. With thousands of applications across industries, drilling ...

Oil and gas exploration and production (E&P) companies must perform one very important phase after drilling a well to its total depth. They need to prepare the well for production of oil or gas—in ...

In the spring of 1974, on a parched field outside Xi’an, Yang Zhifa and his brothers just needed water. Northern China’s drought was punishing, so with nothing more than shovels and hope, they started ...