Primary cementing and Secondary Cementing
#0183;#32;Pumping lead slurry Lead slurry a lowdensity, highyield slurry; designed to fill and cover the upper section of the annulus It is pumped from the cementing unit through the cement head and into the casing When the bottom plug reaches the float collar, the plugs diaphragm ruptures and the wash, spacer, and slurry proceed to the casing shoe.