发明名称 |
Polyurea silicate resin for wellbore application |
摘要 |
<p>Described herein is a novel method of strengthening a wellbore wherein the method uses a polyurea silicate composition. In the method of strengthening an oil well, a gas well or a water well, a mixture comprising at least one isocyanate component having at least two isocyanate groups per molecule; at least one alkali metal silicate; and water is pumped through the oil well, the gas well or the water well into the annulus of the well; subsequently, the mixture is allowed to form a polyurea silicate composition; before the polyurea silicate composition sets to thereby give a polyurea matrix comprising domains of silicate.</p> |
申请公布号 |
EP2746358(A1) |
申请公布日期 |
2014.06.25 |
申请号 |
EP20120198990 |
申请日期 |
2012.12.21 |
申请人 |
BASF SE |
发明人 |
MC DONNELL, SHANE OLIVER, DR.;LAFUENTE CERDA, OSCAR, DR.;WALTHER, BURKHARD, DR.;KIERAT, RADOSLAW, DR. |
分类号 |
C09K8/508;C08G18/38 |
主分类号 |
C09K8/508 |
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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