公开(公告)号：US10815413B2

公开(公告)日：2020-10-27

申请号：US14394886

申请日：2013-04-18

Applicant: RHODIA OPERATIONS

Inventor： Arnaud Cadix ,  Chi-Thanh Vuong

IPC: C09K8/42 ,  C08J3/075 ,  C09K8/575 ,  C09K8/508 ,  E21B33/138 ,  C09K8/44

Abstract: 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.

公开(公告)号：US20150087565A1

公开(公告)日：2015-03-26

申请号：US14394886

申请日：2013-04-18

Applicant: RHODIA OPERATIONS

Inventor： Arnaud Cadix ,  Chi-Thanh Vuong

IPC: C09K8/42 ,  E21B33/138

Abstract: 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.

Abstract translation: 本发明涉及在介质M内，特别是在地下地层内形成凝胶，其包括以下步骤：（EI）将碱性化合物C加入到包含聚合物P的分散颗粒的流体胶乳L中， 所述碱性化合物C以适于水解所述酯侧官能团的至少一部分功能的量加入到羧酸和/或醇官能团中，结果得到改性胶乳L'，粘度 随着时间的推移，从化合物C的添加到凝胶的形成逐渐增加; 然后（E2），在形成凝胶之前将得到的改性胶乳引入培养基M中，使凝胶在培养基M内形成。