TREATMENT OF UNDERGROUND FORMATIONS WITH GELS
- 专利权人:
- RHODIA OPERATIONS
- 发明人:
- CADIX, ARNAUD,VUONG, CHI-THANH
- 申请号：
- EP20130716801
- 公开号：
- EP2838937(A1)
- 申请日:
- 2013.04.18
- 申请国别(地区):
- 欧洲专利局
- 年份:
- 2015
- 代理人:
- 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.
- 来源网站：
- 中国工程科技知识中心
