Offshore drilling is a mechanical process where a wellbore is drilled below the seabed. It is typically carried out in order to explore for and subsequently extract petroleum which lies in rock formations beneath the seabed. Most commonly, the term is used to describe drilling activities on the continental shelf, though the term can also be applied to drilling in lakes, inshore waters and inland seas.Offshore drilling presents environmental challenges, both offshore and onshore from the produced hydrocarbons and the materials used during the drilling operation. gas down-hole drilling is an abrasive, punishing environment for tools. The hole can quickly devour tooling that slowly eats its way through the layers.Penetration. You need it to make progress.Wear. It can halt any progress you make.If you’re down-hole drilling, you know drill bits break, motors seize, and critical wear components give out at the most critical time. Wear is a primary cause of tool failure.