- 专利标题: METHOD FOR REPLACING A CHEMICAL INJECTION VALVE CONNECTED TO A WELL HEAD VIA AN INJECTION LINE HOUSING AND INJECTION LINE PLUGGING TOOL
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申请号: EP19707282.0申请日: 2019-02-13
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公开(公告)号: EP3807494A1公开(公告)日: 2021-04-21
- 发明人: HIORTH, Espen
- 申请人: Interwell Norway AS
- 申请人地址: NO 4089 Hafrsfjord P. O. Box 916
- 代理机构: Onsagers AS
- 优先权: NO20180818 20180613
- 国际公布: WO2019238275 20191219
- 主分类号: E21B34/02
- IPC分类号: E21B34/02
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