| 发明名称 | Valve device of a wellhead Christmas tree assembly | ||
| 摘要 | A valve (1) having at least one flange portion (2, 3) for securing to a wellhead Christmas tree (5) for shutting off a pipe outlet (50) from the wellhead Christmas tree (5). At least one of the flange portions (2) includes integrated devices (6a, 6b, 6, 14, 15) for operation of a second unit (10) mounted outside the valve (1). | ||
| 申请公布号 | US9500062(B2) | 申请公布日期 | 2016.11.22 |
| 申请号 | US201113578628 | 申请日期 | 2011.02.14 |
| 申请人 | PETROLEUM TECHNOLOGY COMPANY AS | 发明人 | Tveiten Magnar;Kleppa Erling;Stokka Øyvind |
| 分类号 | E21B34/02;E21B33/06;E21B33/068 | 主分类号 | E21B34/02 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A wellhead Christmas tree assembly, comprising: a wellhead Christmas tree including a pipe outlet; a first valve, connecting with the wellhead Christmas tree, the first valve includes a through-going main channel extending through the first valve and being aligned with the pipe outlet of the Christmas tree, an exterior of the first valve including a flange portion securing the first valve to the wellhead Christmas tree; a second valve, being a barrier valve providing a fail safe closed position, mounted inside the pipe outlet of the wellhead Christmas tree; and a control mechanism configured to operate the second valve, the control mechanism including a structure integrally formed on a section, which is adjacent to the wellhead Christmas tree and comprises said flange portion, of the first valve. | ||
| 地址 | Stavanger NO | ||