发明名称 |
CEMENT ISOLATION FLUIDS FOR WELLBORES, METHODS OF MAKING, AND METHODS OF USE |
摘要 |
A cement isolation fluid for use in a wellbore during a cementing operation includes an aqueous carrier fluid and a preformed synthetic polymer swellable in the carrier fluid, in an amount effective to isolate a cement slurry from another drilling fluid present in the wellbore. A method of cementing a wellbore comprising a drilling fluid includes injecting the cement isolation fluid into the wellbore; injecting a cement slurry into the wellbore; and hardening the cement in the slurry to cement the wellbore. |
申请公布号 |
WO2016144644(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
WO2016US20429 |
申请日期 |
2016.03.02 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
NELSON, Scott Gregory |
分类号 |
C09K8/42;C09K8/473;E21B33/13 |
主分类号 |
C09K8/42 |
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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