Fluorinated elastomeric blowout preventer packers and method

Details Fluorinated elastomeric blowout preventer packers and method Fluorinated elastomeric blowout preventer packers and method

C - Chemistry, Metallurgy

08

L

C08L 13/00 (2006.01) E21B 33/02 (2006.01) E21B 33/06 (2006.01) E21B 33/128 (2006.01) F16J 15/12 (2006.01) F16J 15/20 (2006.01)

Patent

CA 2743362

A packer unit to be used in an annular blowout preventer. The packer unit includes an elastomer body including a compound of a carboxylated nitrile rubber (XNBR) base polymer having a polymer chain, and a quantity of fluorine atoms attached to the polymer chain. The compound includes between 50 and 60% XNBR, between 25 to 35% carbon black, and the rest includes other materials. The quantity of fluorine atoms displaces at least an equal quantity of hydrogen atoms from the polymer chain when the elastomer body is fluorinated.

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