发明名称 |
Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus |
摘要 |
A method and a tandem spacer consisting of an aqueous lead spacer fluid and an aqueous tail spacer fluid for displacing a drilling fluid from an annular space in a wellbore with a cement slurry is disclosed. The aqueous lead spacer fluid and the aqueous tail spacer fluid are formulated to minimize mixing between a displaced drilling fluid and a cement slurry and to clean contaminants from the annular space.
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申请公布号 |
US6566310(B2) |
申请公布日期 |
2003.05.20 |
申请号 |
US20010907229 |
申请日期 |
2001.07.17 |
申请人 |
ATLANTIC RICHFIELD COMPANY |
发明人 |
CHAN ALBERT F. |
分类号 |
E21B33/13;(IPC1-7):C09K3/00 |
主分类号 |
E21B33/13 |
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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