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Analytical Optimization of Hydraulic Fracturing 水力压裂的分析优化
Pub Date : 2024-02-06 DOI: 10.23880/jeesc-16000105
Xiaoming W
Hydraulic fracturing optimization is a critical aspect of improving the recovery of unconventional shale formation. This paper discusses the use of different types of proppants, rate optimization, and proppant amount optimization to improve hydraulic fracturing techniques. The paper begins with a discussion of proppant selection, which is a critical aspect of hydraulic fracturing. The authors highlight the importance of proppant endurance in holding the fracture opening and provide a range of proppants suitable for different confining pressures. Tables and charts are included to illustrate the permeability values of various proppants under different closure stress values. This section also emphasizes the significance of proppant shape in creating a more conductive path in the fracture. The next section of the paper discusses the methodology used in the study, including the Fracpro software simulation parameters. The authors then delve into the optimization of proppant specific gravity and the results of their experiments with five different types of proppants. The paper highlights the impact of proppant specific gravity on fracture width and dimensionless conductivity (FCD). The author also focusses on the optimization of pumping rate, which is an essential parameter of hydraulic fracturing operations. The paper includes simulation studies conducted to determine the effects of pumping rate on fracture parameters such as propped length and propped height. The authors highlight the relationship between rate and FCD and how it is affected by permeability values of the proppant. Finally, the paper discusses proppant amount optimization, which is a critical point of hydraulic fracturing optimization. The authors provide an overview of the results of the experiments conducted to determine the optimal amount of proppant required for different hydraulic fracturing operations. Overall, this paper provides valuable insights for researchers and engineers working to improve hydraulic fracturing techniques for tight shales formation. The authors use a combination of theory, experiments, and charts to provide a comprehensive overview of the various aspects of hydraulic fracturing optimization.
水力压裂优化是提高非常规页岩层采收率的关键环节。本文讨论了不同类型支撑剂的使用、速率优化和支撑剂用量优化,以改进水力压裂技术。本文首先讨论了支撑剂的选择,这是水力压裂的一个关键方面。作者强调了支撑剂耐久性在保持裂缝开口方面的重要性,并提供了一系列适用于不同封闭压力的支撑剂。文中还附有表格和图表,说明各种支撑剂在不同闭合压力值下的渗透率值。本节还强调了支撑剂形状对在裂缝中形成更多导电路径的重要意义。论文的下一部分讨论了研究中使用的方法,包括 Fracpro 软件的模拟参数。然后,作者深入探讨了支撑剂比重的优化问题,以及使用五种不同类型支撑剂的实验结果。论文强调了支撑剂比重对裂缝宽度和无量纲传导性(FCD)的影响。作者还重点讨论了泵送速率的优化问题,这是水力压裂作业的一个基本参数。论文包括为确定泵速对支撑长度和支撑高度等压裂参数的影响而进行的模拟研究。作者强调了泵速与 FCD 之间的关系,以及这种关系如何受到支撑剂渗透率值的影响。最后,论文讨论了支撑剂用量的优化问题,这是水力压裂优化的一个关键点。作者概述了为确定不同水力压裂作业所需的最佳支撑剂用量而进行的实验结果。总之,本文为致力于改进致密页岩地层水力压裂技术的研究人员和工程师提供了宝贵的见解。作者将理论、实验和图表相结合,全面概述了水力压裂优化的各个方面。
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Journal of Energy and Environmental Science
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