发明名称 |
Method and System for Cementing |
摘要 |
A valve system for cementing including a valve and a sleeve shifter. The valve may have a moveable sleeve with openings and a housing situated about the moveable sleeve and having flow passages. The sleeve shifter may be configured to be opened and/or closed multiple times. The valve may be used in reverse cementing and/or squeeze jobs.
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申请公布号 |
US2011120714(A1) |
申请公布日期 |
2011.05.26 |
申请号 |
US201113014817 |
申请日期 |
2011.01.27 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WEBB EARL;FEARS BRETT;ROGERS HENRY |
分类号 |
E21B33/00 |
主分类号 |
E21B33/00 |
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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