During drilling operations in the Dukhan field, Qatar Petroleum sought
to increase solids control efficiency, retain base fluid, save tank cleaning
time, and reduce the fluid system footprint on its rigs.
Two MD-2 shakers were installed on a rig, replacing a setup of three
conventional shakers (a configuration retained on another rig for
comparison). The objective of the comparison was to evaluate the
efficiency of the MD-2 shakers by monitoring mud content of cuttings
and testing flow rate and solids-handling capacity.
The MD-2 shakers produced drier cuttings with significantly less mud
on cuttings; the cuttings passed a paint filter test for free liquids without
requiring a drying shaker for transportation to disposal sites. The
two-shaker setup handled the same flow rate as the previous setup of
three shakers without experiencing overspill.