PRESSURE CONTAINMENT DEVICE |
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| 申请号 | US16021021 | 申请日 | 2018-06-28 | 公开(公告)号 | US20180334877A1 | 公开(公告)日 | 2018-11-22 |
| 申请人 | MANAGED PRESSURE OPERATIONS PTE. LTD.; | 发明人 | CHRISTIAN LEUCHTENBERG; GEORGE MICHAUD; | ||||
| 摘要 | In an embodiment, the present invention provides a pressure containment device which includes a housing with a returns outlet port, an injection port, and an overflow outlet port, and a seal assembly with a seal arranged in the housing to surround and enter into a sealing engagement with a tubular body extending along a passage in the housing via a sealing face. The injection port is arranged between the returns outlet port and a first end of the seal. The overflow outlet port is arranged adjacent to a second, opposite, end of the seal and communicates with an upper end of the passage. The upper end of the passage connects to a bell nipple or to a section of a riser pipe and, in use, the overflow outlet port is exposed to a hydrostatic head provided by a fluid in the bell nipple or the section of the riser pipe. | ||||||
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