Effective drilling fluids solids control equipment can be attributed to the overall performance of all the components of the drilling mud systems. Conditioning the drilling fluids with the goal of dramatically lowering maintenance cost, avoiding excessive chemical treatment and maintaining mud systems volume will decrease the chance of drilling rig failure, unnecessary high mud costs and drilling problems.
desander
Usually, there are five stage solids control equipment including drilling shale shaker ,desander , desilter ,decanter centrifuge , mud cleaner , vacuum degasser Hydrocyclone cone ,flare igniter ,submersible slurry pump mud mixing pump ,screw pump ,shaker screen , shearing pump , Vertical Cutting Dryer,effective performance of the whole system can not be achieved without the assistance of auxiliary equipment including mud gas separator,centrifugal pump , Jet Mud Mixer, mud agitator ,mud gun and mud tank.The following is an brief summary of function of each solids control equipment.
shale shaker
Separation point of purification equipment:
Separation point of purification equipment comes out from comparing mass velocities of solid phases in different sizes and identical size discharged. Injection velocity, discharge velocity and underflow velocity are needed to test certain equipment. Mass injection velocity can be achieved if injection flow density is multiplied by volume flow rate while mass discharge velocity is given by the multiplication of discharge flow rate by volume flow rate.
Apparently, aggregate discharge velocity should be the same with mass injection velocity. Usually, discharge flow is deserted while the rest stays in the mud. Prior to measuring the solid phase in liquid flows, it is primary to see if mass balance equation is well fit, i.e, if both volume velocity and mass velocity reach balance.
