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发明名称
SELF FILLING CASING
摘要
A method and apparatus for running a casing string into a wellbore. In one embodiment the string includes an impeller at a lower end thereof. As the string is rotated in the wellbore, the rotating impeller urges fluid into the string.
申请公布号
CA2912410(A1)
申请公布日期
2014.11.20
申请号
CA20142912410
申请日期
2014.05.15
申请人
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
发明人
MORRISON, JEFFERY
分类号
E21B17/14;E21B21/08
主分类号
E21B17/14
代理机构
代理人
主权项
地址
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