Since, their introduction in the 1970s, mud shakers have played an important role in preventing excessive loss of the drilling fluid and barite. Prior to the above mentioned times, drilling of oil and drilling in general was very expensive and lengthy. This has changed over the years as manufacturers aspire to make shakers that are more effective. Early shakers had the potential of cleansing around four to six hundred Gallons Per minute of the drilling mud. Many drilling liquids are thyrotrophic, which means that they turn in to a gel like appearance under static conditions. This is another reason why they are known as “mud.”