Stress Overshoot Analysis in Flow Start-Up Tests: Aging Time Fitting of the Different Gel-Based Drilling Fluids.

IF 5 3区化学 Q1 POLYMER SCIENCE

Gels Pub Date : 2025-02-10 DOI:10.3390/gels11020127

Luis H Quitian-Ardila, Raquel S Schimicoscki, Yamid J Garcia-Blanco, Eduardo M Germer, Vladimir Ballesteros-Ballesteros, Oriana Palma Calabokis, Admilson T Franco

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引用次数: 0

Abstract

Drilling fluids are essential for maintaining cutting suspension during drilling, exhibiting gel-like behavior at rest and liquid-like behavior under shearing. These fluids display shear-thinning behavior, yield stress, and thixotropy. This study investigates the impact of aging time on stress overshoot and the deformation required to disrupt the gelled structure of water-based and synthetic-based drilling fluids. Flow start-up tests were conducted using a rotational rheometer at 25 °C and atmospheric pressure. The results show that aging time significantly affects both stress overshoot and the shear strain needed to disrupt the gelled structure. Longer aging times reduce the strain required to break the structure, indicating a correlation between aging time and stress overshoot. The fitted model strongly correlates with the experimental data, providing valuable insights for the planning and simulation of offshore drilling wells, primarily in well stability.

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流动启动试验中的应力超调分析：不同凝胶基钻井液老化时间拟合。

钻井液是维持钻井过程中切削液悬浮的关键，在静止状态下表现为凝胶状，在剪切状态下表现为液体状。这些流体表现出剪切变薄行为、屈服应力和触变性。本研究研究了老化时间对应力超调的影响，以及破坏水基和合成基钻井液凝胶结构所需的变形。流动启动试验使用旋转流变仪在25°C和大气压下进行。结果表明，时效时间对应力超调和破坏胶凝结构所需的剪切应变均有显著影响。较长的时效时间减少了破坏结构所需的应变，表明时效时间与应力超调之间存在相关性。拟合的模型与实验数据密切相关，为海上钻井的规划和模拟提供了有价值的见解，主要是在井的稳定性方面。

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

Gels POLYMER SCIENCE-

CiteScore

4.70

自引率

19.60%

发文量

707

审稿时长

11 weeks

期刊介绍： The journal Gels (ISSN 2310-2861) is an international, open access journal on physical (supramolecular) and chemical gel-based materials. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the maximum length of the papers, and full experimental details must be provided so that the results can be reproduced. Short communications, full research papers and review papers are accepted formats for the preparation of the manuscripts. Gels aims to serve as a reference journal with a focus on gel materials for researchers working in both academia and industry. Therefore, papers demonstrating practical applications of these materials are particularly welcome. Occasionally, invited contributions (i.e., original research and review articles) on emerging issues and high-tech applications of gels are published as special issues.