- 专利标题: Casing hanger assembly
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申请号: US16735068申请日: 2020-01-06
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公开(公告)号: US11187053B2公开(公告)日: 2021-11-30
- 发明人: James A. Rose
- 申请人: NATIONAL OILWELL VARCO, L.P.
- 申请人地址: US TX Houston
- 专利权人: NATIONAL OILWELL VARCO, L.P.
- 当前专利权人: NATIONAL OILWELL VARCO, L.P.
- 当前专利权人地址: US TX Houston
- 代理商 David G. Oberdick
- 主分类号: E21B33/04
- IPC分类号: E21B33/04 ; E21B43/10 ; E21B19/02 ; E21B17/046
摘要:
A casing hanger assembly includes a landing ring secured to a containment well cellar or the conductor pipe. A casing hanger welded to the external surface of the last section of surface casing seats into the landing ring.
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