Casing shoe with float collar «BKOK», «BKOKU»

Column Shoe with non-return valve BCOK is intended for the equipment of the bottom casing with the aim of sending them to the borehole and protect it from damage during the descent and assurance of self-reported descent of columns of drilling fluid from the wellbore without overflow from the column of his mouth, to perform the function of the ring « stop » and ensure sealed landing on his separation tubes in the process of forcing cement slurry in the annular space and to prevent back flow of fluid from the wells in the column at the end of cementing.