Rheology and delayed micellar formation process of novel tetrameric cationic surfactant fracturing fluid

IF 1.6 4区 工程技术 Q3 CHEMISTRY, APPLIED Journal of Surfactants and Detergents Pub Date : 2023-08-08 DOI:10.1002/jsde.12693
Huinan Wu, Bo Fang, Luyao Yu, Jinlan He, Wenting Xu, Hui Xin, Zhenrui Tian, Xiaoyang Han, Yongjun Lu, Ke Xu
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Abstract

To enrich the clean fracturing fluid system with high temperature resistance, a novel tetrameric cationic surfactant (TET) was developed and used as a thickener and mixed with different concentrations of sodium salicylate (NaSal) to obtain a new clean fracturing fluid. The flow curves, thixotropy, viscoelasticity, temperature resistance property, and proppant-suspending capacity were further investigated. The rheological study showed that the Casson model could be used to accurately describe the flow curve of TET/NaSal micelle solutions and the addition of NaSal improved the thixotropy and viscoelasticity of surfactant solution. The optimal mass ratio of TET/NaSal solution was 5/1.5 wt%, and it had good proppant-suspending capacity. What is more, the retained viscosity of TET/NaSal (5/1.5 wt%) solution was 52.27 mPa·s after shearing at 140°C and 100.0 s−1 for 65 min, which met industry requirements (viscosity > 20 mPa·s) of viscoelastic surfactant fracturing fluids. Moreover, the combination of 10 wt% TET aqueous solution with pH value of 8.51 and 2.6 wt% salicylic acid (HSal) suspension of the same mass significantly delayed micellar formation. The four-parameter rheo-kinetics model can be used to fit the viscosity curves of micellar formation, which provided the rheological basis for the study of delayed viscoelastic micellar formation.

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新型四聚阳离子表面活性剂压裂液的流变学及延迟胶束形成过程
为了丰富耐高温清洁压裂液体系,开发了一种新型四聚阳离子表面活性剂(TET),并将其用作增稠剂,与不同浓度的水杨酸钠(NaSal)混合,获得了一种新的清洁压裂液。进一步研究了流动曲线、触变性、粘弹性、耐温性和支撑剂悬浮能力。流变学研究表明,Casson模型可以准确地描述TET/NaSal胶束溶液的流动曲线,NaSal的加入提高了表面活性剂溶液的触变性和粘弹性。TET/NaSal溶液的最佳质量比为5/1.5 且具有良好的支撑剂悬浮能力。此外,TET/NaSal的保留粘度(5/1.5 wt%)溶液为52.27 140°C和100.0剪切后的mPa·s s−1表示65 min,符合行业要求(粘度 >; 20 mPa·s)。此外,10 wt%TET水溶液,pH值为8.51和2.6 相同质量的wt%水杨酸(HSal)悬浮液显著延迟了胶束的形成。四参数流变动力学模型可用于拟合胶束形成的粘度曲线,为延迟粘弹性胶束形成的研究提供了流变学依据。
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来源期刊
Journal of Surfactants and Detergents
Journal of Surfactants and Detergents 工程技术-工程:化工
CiteScore
3.80
自引率
6.20%
发文量
68
审稿时长
4 months
期刊介绍: Journal of Surfactants and Detergents, a journal of the American Oil Chemists’ Society (AOCS) publishes scientific contributions in the surfactants and detergents area. This includes the basic and applied science of petrochemical and oleochemical surfactants, the development and performance of surfactants in all applications, as well as the development and manufacture of detergent ingredients and their formulation into finished products.
期刊最新文献
Issue Information Special issue: Industrial surfactants R&D—A tribute to George A. Smith Issue Information Cloning, purification, and functional characterization of recombinant pullulanase from Bacillus cereusATCC 14579 for improved detergent performance Special Issue: Glycolipid biosurfactants: Synthesis, properties, and applications
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