After the casing is run into the well, a cementing head is hooked to the top of the wellhead to receive the slurries from the pumps. Plugs are used during cementing operations to help remove dispersed mud and mud sheath from the casing inner diameter and minimize the contamination of cement. There are two wiper plugs, i.e. bottom plug and top plug also known as cementing plugs. The bottom of the plug is pumped ahead of the cement slurry and behind the spacer who wipes any remaining dispersed mud from the in
