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Cementing Plugs or mostly known as rubber plugs are generally required to keep away cement slurry from the fluids. Easily congenial with oil-based mud, these plugs are easy to design and develop. During cementing operations, these plugs undoubtedly play a very crucial role. The working of these plugs is not difficult. Ahead the cement slurry and down the space, a bottom plug is pumped-up. As soon as the pump moves downward the string, it takes off the left mud sheath from the covering inner diameter. A diaphragm on the plug easily gets busted because of the pressure when bottom plug seats are placed at float collar. It assists cement to easily flow through it. These plugs then twists the corner of the hole, situated at the bottom of the flat well, the annular space betwixt the casing and formation is then occupied. By doing this, full volume of cement is then pumped in and a plug is drooped behind slurry. The top plug then easily remove the leftover cement from the interior diameter of the casing and ranges the float collar.
Key Points Of Cementing Plugs