发明名称 |
Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
摘要 |
A system for cementing a casing in an open wellbore having no surface casing, wherein an annulus is defined between the casing and the wellbore, the system having: an annular plug around the casing at the mouth of the wellbore; a cement composition pump fluidly connected to the annulus through the seal; and a coupling connected to the exposed end of the casing for taking circulation fluid returns from the inner diameter of the casing.
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申请公布号 |
US7225871(B2) |
申请公布日期 |
2007.06.05 |
申请号 |
US20050255573 |
申请日期 |
2005.10.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
ROGERS HENRY E.;WEBB EARL D.;BLANCHARD KARL |
分类号 |
E21B33/02;E21B33/05;E21B33/14 |
主分类号 |
E21B33/02 |
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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