发明名称 BOP PACKING UNITS SELECTIVELY TREATED WITH ELECTRON BEAM RADIATION AND RELATED METHODS
摘要 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.
申请公布号 CA2744814(A1) 申请公布日期 2010.06.17
申请号 CA20092744814 申请日期 2009.11.03
申请人 HYDRIL USA MANUFACTURING LLC 发明人 BUTUC, STEFAN
分类号 E21B33/06;E21B33/12 主分类号 E21B33/06
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