HANGER FLOATING RING AND SEAL ASSEMBLY SYSTEM AND

专利名称：HANGER FLOATING RING AND SEAL

ASSEMBLY SYSTEM AND METHOD

发明人：Lim Haw Keat,Joseph Chan申请号：US13125569申请日：20100419

公开号：US201200242A1公开日：20120202

专利附图：

摘要：Systems and methods are provided for isolating a landing ring of a hanger frompressure inside a wellhead and sealing a portion of the hanger via a seal assembly. Thehanger includes a floating ring axially interposed between the landing ring and the seal

assembly, and between the landing ring and a shoulder of the hanger. The seal assemblyincludes one or more radially retractable elastomeric seals that are radially retractedduring run in of the seal assembly. The radially retractable seals may be radially

expanded via shearing of one or more shear pins by torque applied to the seal assembly.The seal assembly may also include one or more metal seals having a plurality of ringshaving a nib configuration that includes three smaller nibs for sealing and a larger flat nibfor withstanding the energizing load on the seal assembly.

申请人：Lim Haw Keat,Joseph Chan

地址：Singapore SG,Singapore SG

国籍：SG,SG

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