The St. Louis Democrat says;—" We published a statement made by the Louisville Courier, a few days ago, that the deepest well ia the world was the artesian well of Messrs. Dupont, in that city ...

BEIJING/URUMQI, Feb. 20 (Xinhua) -- China National Petroleum Corporation (CNPC) announced Thursday that it has completed the drilling of the deepest vertical well in Asia, as a borehole reached a ...

The vertical well, the second across the world, also made other engineering breakthroughs globally, including the deepest liner cementing, deepest wireline imaging logging and fastest onshore ...