APPARATUS AND METHOD FOR DRILLING DEVIATED WELLBORES |
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| 申请号 | US15772007 | 申请日 | 2016-10-19 | 公开(公告)号 | US20180313156A1 | 公开(公告)日 | 2018-11-01 |
| 申请人 | HALLIBURTON ENERGY SERVICES, INC.; | 发明人 | David Joe Steele; Clifford Lynn Talley; Doug Durst; Mark C. Glaser; | ||||
| 摘要 | Systems and methods are described for drilling a new secondary wellbore from a primary wellbore in which a production string is already deployed. The production string is severed below a desired kick-off location for the new secondary wellbore and the upstream portion of the production string is withdrawn from the primary wellbore, thereby exposing an end of the remaining production string. A lateral orientation device (LOD) is mounted on the exposed end of the production string. The LOD includes a shoulder for seating on the exposed end, anchoring mechanism(s) to secure the LOD to adjacent tubular(s), and seals to sealingly engage adjacent tubulars. The LOD may include a contoured surface for orientation of a tool, such as a whipstock, which may be utilized to drill a new wellbore. Alternatively, a work string may be coupled with the LOD to perform pumping operations in the wellbore below the LOD. | ||||||
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