APPARATUS AND METHOD FOR SEPARATING SOLIDS FROM A SOLIDS LADEN DRILLING FLUID

摘要

A method for operating a shale shaker to separate solids from a solids laden fluid, the shale shaker comprising a basket (3) for holding at least one screen (2) and a vibratory mechanism (5,8) for vibrating said basket (3) to an acceleration value, the method comprising the steps of using a control apparatus (20)to continuously monitor magnitude of the load of solids laden fluid in the basket (3) and the control apparatus (20) adjusting the acceleration value induced in said basket (2) according to the magnitude of the load wherein said acceleration is stepped down to a low acceleration value below a low load threshold.