发明名称 |
Treatment of underground formations with gels |
摘要 |
The present invention relates to the formation of a gel within a medium M, in particular within an underground formation, which comprises the following steps: (EI) a basic compound C is added to a fluid latex L comprising dispersed particles of a polymer P, bearing ester side functions, said basic compound C being added in an amount suitable for hydrolysing at least one part of said ester side functions into carboxylic acid and/or alcohol functions, as a result of which a modified latex L′ is obtained, the viscosity of which gradually increases with time from the addition of the compound C up to the formation of a gel; then (E2) the resulting modified latex is introduced into the medium M before the formation of the gel and the gel is left to form within the medium M. |
申请公布号 |
US2015087565(A1) |
申请公布日期 |
2015.03.26 |
申请号 |
US201314394886 |
申请日期 |
2013.04.18 |
申请人 |
RHODIA OPERATIONS |
发明人 |
Cadix Arnaud;Vuong Chi-Thanh |
分类号 |
C09K8/42;E21B33/138 |
主分类号 |
C09K8/42 |
代理机构 |
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代理人 |
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主权项 |
1. A process for forming a gel within a medium M, in particular within an underground formation, which comprises the following steps:
(E1) a basic compound C is added to a fluid latex L comprising dispersed particles of a polymer P, bearing ester side functions, said basic compound C being added in an amount suitable for hydrolyzing at least one part of said ester side functions into carboxylic acid and/or alcohol functions, as a result of which a modified latex L′ is obtained, the viscosity of which gradually increases with time from the addition of the compound C up to the formation of a gel; then (E2) the resulting modified latex is introduced into the medium M before the formation of the gel and the gel is left to form within the medium M. |
地址 |
Aubervilliers FR |