A casing spear may comprise a mandrel, and a slip assembly comprising at least one slip. Closing the door causes the layer of material to contact a recessed surface of the opening and deflect the chamfered edge to form a seal in the recessed opening. From the collected events data further counter values are created periodically for the second and further ROPs. After injection of the molten resin, the helical spring automatically engages the shutoff pin thereby closing the nozzle and valve assembly to prevent backflow.