Cement head and plug

Details Cement head and plug Cement head and plug

E - Fixed Constructions

21

B

166/17

E21B 43/00 (2006.01) E21B 33/05 (2006.01) E21B 33/16 (2006.01)

Patent

CA 2008913

A cement head and casing assembly includes a cement head body having a cement passage defined therethrough. The body is mounted on the well casing and has a lower portion extending down into the casing, with an upper portion extending a relatively short distance above an upper end of the casing. A cement plug is closely received within a bore of the casing below the upper end thereof. The cement plug is releasably connected to the lower portion of the cement head body so that the plug is suspended from the lower por- tion of the cement head body within the casing. The cement plug has a plug passage defined therethrough which is com- municated with a cement passage in the cement head body so that cement can be pumped down through the cement head body and the cement plug into the casing. The passage through the cement plug can be closed and the cement plug can be released from the cement plug body after the cement has been pumped into the casing.

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