Integrating Hydraulic Fracturing and Oil Displacement with Micellar-Enhanced Supramolecular Fluids

IF 3.8 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2025-05-20 DOI:10.1021/acs.iecr.5c00172

Ziteng Yang, Yong Zhang, Jie Qi, Xingyu Lin, Li Wang, Hongsheng Lu, Zheng Zhang

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Abstract

A strategy for integrating hydraulic fracturing and oil displacement using a supramolecular fracturing fluid (HMP–OB₁₄–C₈OH) is proposed to mitigate formation damage and ecological pollution during hydraulic fracturing. This fluid, composed of amphiphilic polymers (HMPs), tetradecyl dimethylamine oxide (OB₁₄), and n-octanol (C₈OH), enhances viscosity by 62 mPa·s through C₈OH-promoted OB₁₄ micelle growth. Analyses using cryo-transmission electron microscopy (Cryo-TEM), dynamic light scattering (DLS), fluorescence, and scanning electron microscopy (SEM) confirm that the supramolecular interactions between OB₁₄ and C₈OH increase viscoelasticity and improve tolerance to temperature, shear, and salt as well as proppant suspension. Additionally, these supramolecular interactions facilitate gel breakage, thereby reducing formation damage. Compared to conventional hydroxypropyl guar (HPG) fracturing fluid, this system demonstrates superior imbibition recovery and oil displacement efficiency, offering a promising and environmentally friendly solution for oil displacement and fracturing.

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结合胶束增强超分子流体的水力压裂和驱油技术

提出了一种利用超分子压裂液（HMP-OB14-C8OH）进行水力压裂和驱油一体化的策略，以减轻水力压裂过程中的地层损害和生态污染。该流体由两亲性聚合物（HMPs）、氧化十四烷基二甲胺（OB14）和正辛醇（C8OH）组成，通过C8OH促进OB14胶束生长，使粘度提高了62 mPa·s。低温透射电镜（cro - tem）、动态光散射（DLS）、荧光和扫描电镜（SEM）分析证实，OB14和C8OH之间的超分子相互作用增加了粘弹性，提高了对温度、剪切、盐和支撑剂悬浮液的耐受性。此外，这些超分子相互作用有助于凝胶破裂，从而减少地层损害。与传统的羟丙基瓜尔胶（HPG）压裂液相比，该体系具有优越的渗吸采收率和驱油效率，为驱油和压裂提供了一种有前景的环保解决方案。

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来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.