发明授权
US5944108A Method for multi-lateral completion and cementing the juncture with
lateral wellbores
失效
用于多侧面完井和固定与侧面井眼的关节的方法
- 专利标题: Method for multi-lateral completion and cementing the juncture with lateral wellbores
- 专利标题(中): 用于多侧面完井和固定与侧面井眼的关节的方法
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申请号: US919898申请日: 1997-08-28
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公开(公告)号: US5944108A公开(公告)日: 1999-08-31
- 发明人: John L. Baugh , David E. Hirth , Douglas J. Murray
- 申请人: John L. Baugh , David E. Hirth , Douglas J. Murray
- 申请人地址: TX Houston
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 当前专利权人地址: TX Houston
- 主分类号: E21B23/03
- IPC分类号: E21B23/03 ; E21B23/12 ; E21B41/00 ; E21B43/14
摘要:
The present invention relates to an improved method for multilateral completion and cementing (i.e., sealing) the juncture between primary and lateral wellbores. The completion method of the present invention addresses the issue of cementation and sealing of junctures between vertical and lateral wellbores. It is desirable to have the ability to re-enter each lateral wellbore as well as maintain the option to perform any function that could be done in a single wellbore. For this reason, cemented and sealed lateral wellbores are desirable so that normal isolation, stimulation or any other operation can be achieved. The method allows sealing and reworking of either wellbores with single laterals or multiple laterals and provides safe durable junctions therebetween. The method of this invention utilizes a "hook" liner hanger system. The Hook liner hanger system includes a novel camming surface and guide slot which cooperates with a complimentary control lug to selectively direct a tool in a primary or lateral wellbore.
公开/授权文献
- USD323024S Sealing ring 公开/授权日:1992-01-07
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