SEALING A BORE OR OPEN ANNULUS |
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| 申请号 | US14898872 | 申请日 | 2014-06-09 | 公开(公告)号 | US20160123122A1 | 公开(公告)日 | 2016-05-05 |
| 申请人 | MAERSK OLIE OG GAS A/S; | 发明人 | Hans Johannes Cornelius Maria VAN DONGEN; Hans-Henrik KOGSBOLL; | ||||
| 摘要 | Disclosed is a method for use in restricting or sealing a bore. A tubular is expanded in the bore to cause the tubular to split and be extended towards a wall of the bore. A straddle is located within the tubular so as to extend across the region of the tubular which has been split, and expanded to seal the split in the tubular. Also disclosed is apparatus comprising one or more expansion tools and a straddle, for use in sealing or restricting a bore. The apparatus may be used in conjunction with a tubular as disclosed herein, having one or more weak zones adapted to preferentially split under the action of an expansion tool. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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