深层水力压裂的能量平衡

IF 5.7 1区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering Science Pub Date : 2024-09-28 DOI:10.1016/j.ijengsci.2024.104151

Carlo Peruzzo, Andreas Möri, Brice Lecampion

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引用次数: 0

摘要

我们详细介绍了水力压裂传播的能量平衡。我们利用线性水力压裂模型（该模型结合了润滑流和线性弹性压裂力学），展示了不同的传播机制与水力压裂增长的能量平衡中特定项的主导地位之间的关系。从能量角度出发，我们可以对水力压裂的生长行为做出物理解释，例如，径向几何形状的生长从粘度主导过渡到韧性主导、注入结束后的压裂扩展或过渡到自浮力拉长生长。我们通过一系列数值示例量化了不同幂项的演变。我们还讨论了类似工业水力压裂处理的不同项的大小顺序，其中考虑了注入管线中的额外耗散。

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The energy balance of a hydraulic fracture at depth

We detail the energy balance of a propagating hydraulic fracture. Using the linear hydraulic fracture model which combines lubrication flow and linear elastic fracture mechanics, we demonstrate how different propagation regimes are related to the dominance of a given term of the power balance of a growing hydraulic fracture. Taking an energy point of view allows us to offer a physical explanation of hydraulic fracture growth behaviours, such as, for example, the transition from viscosity to toughness dominated growth for a radial geometry, fracture propagation after the end of the injection or transition to self-buoyant elongated growth. We quantify the evolution of the different power terms for a series of numerical examples. We also discuss the order of magnitudes of the different terms for a industrial-like hydraulic fracturing treatment accounting for the additional dissipation in the injection line.

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来源期刊

International Journal of Engineering Science 工程技术-工程：综合

CiteScore

11.80

自引率

16.70%

发文量

审稿时长

45 days

期刊介绍： The International Journal of Engineering Science is not limited to a specific aspect of science and engineering but is instead devoted to a wide range of subfields in the engineering sciences. While it encourages a broad spectrum of contribution in the engineering sciences, its core interest lies in issues concerning material modeling and response. Articles of interdisciplinary nature are particularly welcome. The primary goal of the new editors is to maintain high quality of publications. There will be a commitment to expediting the time taken for the publication of the papers. The articles that are sent for reviews will have names of the authors deleted with a view towards enhancing the objectivity and fairness of the review process. Articles that are devoted to the purely mathematical aspects without a discussion of the physical implications of the results or the consideration of specific examples are discouraged. Articles concerning material science should not be limited merely to a description and recording of observations but should contain theoretical or quantitative discussion of the results.