| 摘要 |
A packing assembly (40c) for use with a rotary swivel having a cylindrical wash pipe (18), The cylindrical wash pipe (18) comprises a housing assembly that includes a packing gland (42c). The packing gland (42c) possesses a chamber (46c) to permit a sealing assembly (120), which circumscribes the washpipe (18). Furthermore, the packing gland (42c) includes an injection po rt (58) that is in open communication with the chamber (46c). The sealing assembly (120), which is disposed in the chamber (46c), includes a first annular seal ring (138) and a containment member (138) that are both in sealing engagement with the washpipe (18). The first annular seal ring (138) is axially spaced from the containment member (138). Injectable packing composition (140) is posited between the first annular seal ring (138) and t he containment member (138); additionally, the injectable packing composition (140) is in sealing engagement with the wash pipe (18). Finally, the wash pi pe (18) and the packing assembly (40c) are rotatable relative to the other.</SD OAB>
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