A Novel Upscaling Method For Evaluating Mechanical Properties Of The Shale Oil Reservoir Based On Cluster Analysis And Nanoindentation

IF 2.6 3区工程技术 Q3 ENERGY & FUELS

Journal of Energy Resources Technology-transactions of The Asme Pub Date : 2023-03-30 DOI:10.1115/1.4062248

S. Meng, Zihan Zhang, Jiaping Tao, C. Zhang, Liu Yang

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引用次数: 4

Abstract

Shale formations as major unconventional energy resources are crucial in satisfying the global energy needs of the future. Via nanoindentation method and upscale method, the macromechanical parameters of shale, such as hardness, elastic modulus, are obtained. The conventional Mori-Tanaka upscale method only divides the data into three mineral classes and fails to fully incorporate micromechanical properties to reflect the macro-scale properties of samples.The research measures micromechanical parameters of shale via nanoindentation and performs cluster analysis of nanoindentation measurements. The results of cluster analysis are then combined with the Mori-Tanaka upscale model to evaluate the macro-scale mechanical property of shale. The elastic modulus, hardness and fracture toughness are divided into five groups (clusters) via cluster analysis, with each representing a certain mineral composition. This research is of great significance for more reasonably and accurately characterizing shale mechanical properties, optimizing the recovery scheme, and improving the recovery efficiency of shale gas.

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基于聚类分析和纳米压痕的页岩油储层力学性能评价新方法

页岩地层作为主要的非常规能源资源，对满足未来全球能源需求至关重要。通过纳米压痕法和高档法，获得了页岩的硬度、弹性模量等宏观力学参数。传统的Mori-Tanaka高档方法仅将数据分为三种矿物类别，未能充分考虑微观力学性质来反映样品的宏观尺度性质。通过纳米压痕测量页岩微观力学参数，并对纳米压痕测量结果进行聚类分析。然后将聚类分析结果与Mori-Tanaka高档模型相结合，对页岩宏观力学性质进行评价。通过聚类分析，将弹性模量、硬度和断裂韧性分为五组(簇)，每组代表一定的矿物成分。该研究对于更合理、准确地表征页岩力学性质，优化开采方案，提高页岩气采收率具有重要意义。

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来源期刊

Journal of Energy Resources Technology-transactions of The Asme 工程技术-能源与燃料

CiteScore

6.40

自引率

30.00%

发文量

213

审稿时长

4.5 months

期刊介绍： Specific areas of importance including, but not limited to: Fundamentals of thermodynamics such as energy, entropy and exergy, laws of thermodynamics; Thermoeconomics; Alternative and renewable energy sources; Internal combustion engines; (Geo) thermal energy storage and conversion systems; Fundamental combustion of fuels; Energy resource recovery from biomass and solid wastes; Carbon capture; Land and offshore wells drilling; Production and reservoir engineering;, Economics of energy resource exploitation