The drill string can be either hollow or solid, depending on the type of fluid or air that is used to circulate through the hole and remove the cuttings. Rotary drilling can reach depths of ...

Originally conceived as a bottom-supported drilling unit, semisubmersibles eventually found their true calling. Now, semisubs are the most stable of any floating rig, many times chosen for harsh ...

There are many types of drilling platforms used across the world. Figure 1 is an example of the different types of platforms that are used for oil or gas extraction. Figure 1 – Types of Drilling ...

There are a number of different types of drill bits. Steel Tooth Rotary Bits are the most common types of drill bits, while Insert Bits are steel tooth bit with tungsten carbide inserts.

Drill fluids are required to clear drill cuttings, cool the bit, and stabilize the borehole wall. Types of well drilling bits include the following: Tri-cone or roller bits contain three toothed cones ...

Whether you need to do small tasks around the house, hobby projects that can get out of hand quickly or you're a professional, a cordless drill can be a really nifty addition to your toolbox.