文献类型：期刊文献

英文题名：Physical chemistry of nanoparticle reinforced polymer fracturing fluid system with high temperature resistance

作者：Wang, Dongqing[1];Li, Yudie[1];Fang, Bo[1];Li, Li[1];Cao, Jialun[1];Shen, Jiayi[1];Guo, Xuhong[1]

机构：[1]East China Univ Sci & Technol, Res Ctr Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Lab Chem Engn Rheol, Shanghai 200237, Peoples R China

年份：2025

卷号：62

期号：5

起止页码：481

外文期刊名：TENSIDE SURFACTANTS DETERGENTS

收录：;EI(收录号：20252618685823);WOS:【SCI-EXPANDED(收录号:WOS:001512204300001)】；

基金：Thanks for the support of the China's National Science and Technology Major Project [grant numbers 2017ZX05023003]; and PetroChina Science and Technology Management Department Project [grant numbers 2020B-4120].

语种：英文

外文关键词：lithium magnesium silicate (LMS); (AM)/2-acrylamide-2-methylpropanesulfonic acid (AM/AMPS) copolymer; rheology; sand transport

摘要：A fracturing fluid system composed of an acrylamide (AM)/2-acrylamide-2-methylpropanesulfonic acid (AMPS) copolymer and lithium magnesium silicate (LMS) nanoparticles was prepared, and its rheological properties were studied systematically. The experimental results showed that the presence of LMS increased the viscosity of the fracturing fluid, especially at high temperatures. Frequency sweep results demonstrated that the AM/AMPS copolymer fracturing fluid exhibited typical gel characteristics when LMS was introduced. The gel strength reached the maximum at an LMS concentration of 2.5 wt% and an AM/AMPS copolymer concentration of 0.6 wt%. Following continuous shear at a shear rate of 100 s-1 for 30 min at 120 degrees C, the viscosity of the fracturing fluid remained at 325 mPa s. This is significantly higher than the required viscosity of 50 mPa s for a high-temperature-resistant hydraulic fracturing fluid in the industry. The AM/AMPS-LMS system exhibited positive thixotropy and an excellent proppant carrying capacity both at room temperature and at 90 degrees C. Due to electrostatic attraction, LMS acts as an effective cross-linker between polymer chains, enhancing the rheological properties of the system. Our results showed that the AM/AMPS-LMS system is an ideal candidate for a high-temperature-resistant fracturing fluid.