Preparation of clay inhibitor based on pomegranate peel extract and its application in drilling fluids

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-14 DOI:10.1680/jgrma.23.00068

Wanjun Chang, Qingchen Wang, Yan Wei, Xiaofeng Chang, Fan Zhang, Chen Gang

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Abstract

The application of drilling fluids and additives plays an important role in drilling operations. Additionally, one of the most crucial ways to increase drilling efficiency since environmental rules were passed is by finding an inexpensive and ecologically acceptable drilling fluid additive. Pomegranate peel extract (PP) and PP modified by AlCl3 (PPA) were created in this study. Their effects on inhibiting clay swelling were evaluated by linear swelling test, mud ball test, anti-swelling test and drilling fluid performance evaluation. The performance of the modified pomegranate peel extract on inhibiting clay swelling was compared with that of KCl. The swelling rate of bentonite was effectively reduced by 1.20% PP, which represented a substantial improvement above 4% KCl. The results of this study indicated that PPA has excellent performance in inhibiting clay swelling compared to known inhibitors. PP was modified by 0.06% AlCl3 (named as PPA-1). The YP/PV remained basically stable after the addition of PPA-1 to the drilling fluid in the 100°C hot rolling experiment. Thus the drilling fluid showed good rheological properties. And the drilling fluid prepared with PPA-1 has a high shale recovery rate. Finally, the correlation between the molecular structure of PP and PPA-1 and its inhibition mechanism was assessed by XRD and IR. This study provides a pathway for converting low-cost agricultural by-products into high value-added industrial materials.

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基于石榴皮提取物的粘土抑制剂的制备及其在钻井液中的应用

钻井液和添加剂的应用在钻井作业中发挥着重要作用。此外，自环保法规通过以来，提高钻井效率的最重要方法之一就是找到一种廉价且生态上可接受的钻井液添加剂。本研究开发了石榴皮提取物（PP）和经 AlCl3 改性的石榴皮提取物（PPA）。通过线性膨胀试验、泥浆球试验、抗膨胀试验和钻井液性能评价，评估了它们对抑制粘土膨胀的效果。比较了改性石榴皮提取物与氯化钾在抑制粘土膨胀方面的性能。1.20% 的石榴皮提取物可有效降低膨润土的膨胀率，与 4% 的氯化钾相比，膨胀率有了大幅提高。研究结果表明，与已知的抑制剂相比，PPA 在抑制粘土膨胀方面具有优异的性能。用 0.06% AlCl3 对 PP 进行改性（命名为 PPA-1）。在 100°C 热轧实验中，钻井液中加入 PPA-1 后，YP/PV 基本保持稳定。因此，钻井液具有良好的流变特性。使用 PPA-1 制备的钻井液具有较高的页岩回收率。最后，通过 XRD 和 IR 评估了 PP 和 PPA-1 分子结构之间的相关性及其抑制机理。这项研究为将低成本的农业副产品转化为高附加值的工业材料提供了一条途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.