发明名称 |
Washout arrangement for a well |
摘要 |
A washout arrangement for a well where a washout process is to take place to wash cement out of an annulus between two concentric casings 10, 16. Washports 36 are provided in a casing hanger 18, and an axially movable, telescopically extending lower body 40 is provided in a running tool 26 which is to engage with the casing hanger. When the running tool and casing hanger are engaged with each other, the lower body 40 can be moved axially (for example by mounting the lower body on a thread within the running tool and then rotating the lower body) between a position where it closes the washports and a position where the ports are open.
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申请公布号 |
US6095243(A) |
申请公布日期 |
2000.08.01 |
申请号 |
US19980096084 |
申请日期 |
1998.06.11 |
申请人 |
PLEXUS OCEAN SYSTEMS LIMITED |
发明人 |
VAN BILDERBEEK, BERNARD HERMAN;BOYD, MARK |
分类号 |
E21B33/043;E21B33/14;E21B34/04;(IPC1-7):E21B23/00 |
主分类号 |
E21B33/043 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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