Cementing plug

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Cementing plug introduction

Our top cementing plug and bottom cementing plug measure up to the China petroleum enterprise standard SY 5394-2004 and API standard.
Top cementing plug and bottom cementing plug are respectively set at the top and the bottom of double plug cement head before using. When top cementing plug moves down and gets to the top of float collar or impact ring, top cementing plug and bottom cementing plug impact against each other, then the pressure of wellhead release. Float collar and float shoe ward off the backflow of slurry. Cementing is finished.

● The material of plug body is acrylonitrile-butadiene rubber. The material of plug core is aluminum alloy. So they can be drilled through by PDC drill bitand roller bit.
● The top cementing plug has a solid core; the bottom cementing plug has an air core, and is separatedby a layer of rubber diaphragm.

Technical Parameter
Size (in.)O.D. (mm)Length (mm)Bottom Cementing Plug Rubber
membrane burst pressure (MPa)
4 1/2""1142101~2
5 1/2""1402201~2
6 5/8"1682301~2
9 5/8"2402601~2
10 3/4"2703001~2
13 3/8"3403501~2
18 5/8"4734002~3

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