Mar 17, 2013

First offshore oil well

On May 4, 1869, Thomas F. Rowland (U.S.) filed the first patent for a fixed drilling platform. The first working offshore oil well was built off the coast of California in 1897. Also in 1869, Samuel Lewis described the principle of the self-elevating mobile platform, but it wasn't until 1954 that the first platform of this type was built. (Inventions and Discoveries)