E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/06 (2006.01) E21B 33/12 (2006.01)
Patent
CA 2744814
A method of increasing the crosslink density of a seal for a blowout preventer that includes selectively applying electron beam radiation to a selected portion of a blowout preventer seal comprising a cured elastomeric material and at least one rigid insert to increase the crosslink density of the selected portion of the cured elastomeric material is disclosed. Methods of curing a seal for a blowout preventer, blowout preventers, and seals for blowout, preventers are also disclosed.
L'invention concerne un procédé permettant d'accroître la densité de réticulation d'un joint pour un bloc obturateur de puits qui consiste notamment à appliquer de manière sélective un rayonnement de faisceau d'électrons à une partie choisie d'un joint de bloc obturateur de puits comprenant un matériau élastomère durci et au moins un insert rigide pour accroître la densité de réticulation de la partie choisie du matériau élastomère durci. L'invention concerne également des procédés de durcissement d'un joint destiné à un bloc obturateur de puits, des blocs obturateurs de puits, ainsi que des joints pour blocs obturateurs.
Craig Wilson And Company
Hydril Usa Manufacturing Llc
LandOfFree
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