石油化工2024，Vol.53Issue(3)：374-382,9.DOI:10.3969/j.issn.1000-8144.2024.03.010
耐高温海水基压裂液聚合物稠化剂流变性能
Rheological properties of polymer thickener for high-temperature resistant seawater-based fracturing fluid
摘要
Abstract
In order to determine the effects of molecular weight of polymer thickener,type and content of functional monomers on the rheological properties of seawater-based fracturing fluid,ultra-high molecular weight polymers with strong electrolyte monomer 2-acrylamide-2-methylpropyl sulfonic acid(AMPS)or amide hydrolysis inhibition monomer N-vinylpyrrolidone(NVP)were selected to study the rheological properties of polymer solution.A study on the temperature and shear resistance of polymer crosslinked gel was conducted on 5 polymers with ultra-high molecular weight and different AMPS contents.The experimental results show that polymers with ultra-high molecular weight and low AMPS content have better viscoelasticity,polymers with ultra-high molecular weight and high AMPS content have better shear resistance at high temperatures,polymers with ultra-high molecular weight and NVP groups have better thickening ability in seawater,and polymers with high AMPS content have better temperature and shear resistance.Polymers with ultra-high molecular weight(molecular weight no less than 2×107),suitable hydrolysis degree(20%-23%),low AMPS content(3%-8%(w))are more suitable as thickeners for high temperature resistant seawater-based fracturing fluid.关键词
耐高温性/海水基压裂液/稠化剂/聚丙烯酰胺/流变性Key words
high temperature resistance/seawater-based fracturing fluid/thickener/polyacrylamide/rheology分类
能源科技引用本文复制引用
滕大勇,金鑫,丁秋炜,张昕,陈庆栋,周际永..耐高温海水基压裂液聚合物稠化剂流变性能[J].石油化工,2024,53(3):374-382,9.基金项目
中海油集团公司"三新三化"项目(JTKY-SXSH-2021-HF-08) （JTKY-SXSH-2021-HF-08）
中海油能源发展股份有限公司科技重大专项子课题项目(HFKJ-ZX-GJ-2022-03-06). （HFKJ-ZX-GJ-2022-03-06）
