There are several types of screening medium. The most popular, available in carbon steel, stainless steel, or other metal alloys, is woven wire screen with square or rectangular apertures. Profile bars, perforated plates, polyurethane, and rubber are examples of other materials. The significance of selecting the proper media for any screening application cannot be emphasized.
The purpose of screening is to separate granular substance particles that are smaller than the screen opening from those that are larger. This is not as simple as it sounds, and the difficulties compound as the opening becomes smaller.
The drilling cuttings removal equipment is often called solid-control equipment because it is mostly used for removing drilling cuttings in the mud returned from the borehole. Primary solid-removal equipment should include shale shakers, a degasser, a desander, a desilter, and a decanting centrifuge. All of these parts are installed on top of the mud tanks.