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How to Get Separation Point of Purification Equipment

Apr 21, 2014

READ: The separation point for drilling fluids is defined as separation characteristics shown by purification equipment in the given time. And that for purification equipment comes out from comparing mass velocities of solid phases in different sizes and identical size discharged.

Separation point of drilling fluids:

The separation point for drilling fluids is defined as separation characteristics shown by purification equipment in the given time. It should take the properties of both purification equipment and drilling fluids into account to evaluate separation point data. The curve of separation can be drawn on collected data, illustrating the equipment’s removing rates of certain size at certain time in data collection. Accordingly, it is the function for solids’ physical property, diameter distribution, equipment state and mud properties.

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.