Study of the modification of bentonite for the formation of nanocomposite hydrogels with potential applicability in conformance control

被引：16

作者：

Aguiar, Kelly L. N. P. ^{[1
]}

Pereira, Kaique A. B. ^{[1
]}

Mendes, Matheus S. L. ^{[1
]}

Pedroni, Lucas G. ^{[2
]}

Oliveira, Priscila F. ^{[1
]}

Mansur, Claudia R. E. ^{[1
,3
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Macromol, Lab Macromol & Coloides Ind Petroleo, Rua Moniz Aragao 360,Bloco 8G CT2, BR-21941594 Rio De Janeiro, RJ, Brazil

[2] Petrobras SA, Leopoldo Amer Miguez de Mello Res & Dev Ctr Cenpe, Rio De Janeiro, RJ, Brazil

[3] Univ Fed Rio de Janeiro, Programa Engn Met & Mat PEMM COPPE, Rio De Janeiro, Brazil

来源：

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2020年 / 195卷

关键词：

Bentonite; Chemical modification; Organophilic clay; Hydrogel nanocomposite; Conformance control; PREFORMED PARTICLE GELS; ENHANCED OIL-RECOVERY; SWELLING BEHAVIOR; MONTMORILLONITE; SURFACTANT; ORGANOCLAYS; ADSORPTION; POLYMERIZATION;

D O I：

10.1016/j.petrol.2020.107600

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this work, the structure of bentonite clay was modified by ion exchange mechanism using 30%, 60% and 100% of its cation exchange capacity (CEC) with the surfactants hexadecyltrimethylammonium bromide, tetramethylammonium bromide, and trimethylphenylammonium bromide. The organically modified clay samples were characterized by Fourier-transform infrared spectrometry (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The clays modified with hexadecyltrimethylammonium bromide presented the best results and were used for the formation of nanocomposite hydrogels and the systems were characterized by FTIR, TGA, SEM and rheological analysis. Thus, it was observed that the systems produced with 100% hexadecyltrimethylammonium bromide modified clay presented better properties and nanofiller showed better reinforcement capacity due to the greater interaction between the organophilic clay and the polymeric matrix.

引用

页数：13

共 35 条

[1] Effect of montmorillonite on gelation and swelling behavior of sulfonated polyacrylamide nanocomposite hydrogels in electrolyte solutions [J].