中国科技核心期刊
(中国科技论文统计源期刊)
  Scopus收录期刊

石油科学通报 ›› 2025, Vol. 10 ›› Issue (6): 1279-1300. doi: 10.3969/j.issn.2096-1693.2025.03.028

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低渗透铀矿原地浸出与压裂增渗技术:进展及挑战

马帅1, 汪道兵1,*(), 雷俊勇1, 李召坤2, 王亚奴2   

  1. 1 北京石油化工学院机械工程学院北京 102617
    2 核工业北京化工冶金研究院北京 101149
  • 收稿日期:2025-06-13 修回日期:2025-10-23 出版日期:2025-12-30 发布日期:2025-12-30
  • 通讯作者: *汪道兵(1985年—),博士,教授,主要从事深地能源水力压裂理论与技术方面研究,0546wdb@163.com
  • 作者简介:马帅(2002年—),硕士研究生,主要研究方向为低渗透铀矿资源暂堵转向压裂理论与技术,1683147825@qq.com
  • 基金资助:
    国家自然科学基金-面上项目“纳米增黏流体与超临界CO2复合压裂页岩油层人工裂网形成与调控机制”(52474001);国家自然科学基金-面上项目“基于注液增能和暂堵转向协同作用的干热岩人工缝网形成与调控机制”(52274002)

In-situ leaching and fracture stimulation technology for low-permeability uranium deposits: Progress and challenges

MA Shuai1, WANG Daobing1,*(), LEI Junyong1, LI Zhaokun2, WANG Yanu2   

  1. 1 School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
    2 Beijing Research Institute of Chemical Engineering and Metallurgy, Beijing 101149, China
  • Received:2025-06-13 Revised:2025-10-23 Online:2025-12-30 Published:2025-12-30

摘要:

在“双碳”战略驱动下,核能凭借低碳、高效优势逐步成为能源结构的重要部分,铀作为核能的关键原料,其绿色开采至关重要,原地浸出采铀技术因其绿色、高效的优势成为主流选择。然而,在低渗透矿床浸出过程中普遍存在溶浸剂流动受阻、铀回收效率低等难题,水力压裂增渗技术作为成熟的增渗方法,其通过注入压裂液形成裂缝网络,能够显著改善矿层渗流能力,提升溶浸剂流动性以提高铀回收效率,展现出良好应用前景。本文系统阐述了多种地浸工艺及其适用性,深入分析多级压裂、暂堵转向压裂、智能压裂、酸化压裂、泡沫压裂与超临界CO2压裂等新型水力压裂技术的核心机理及研究现状。结合低渗透铀矿床的资源特征与开采需求,本文提出了地浸采铀与水力压裂技术的协同应用,深入探讨了水力压裂技术对提高铀矿层渗透性与溶浸效率的促进作用,采用多技术集成与智能化优化的发展方向,实现资源高效回收与环境风险降低,为铀矿绿色可持续开发提供强有力支撑。

关键词: 核能, 低渗透铀矿, 地浸采铀, 水力压裂

Abstract:

Driven by the “dual carbon” strategy, nuclear energy is increasingly recognized as a vital component of the energy mix due to its low-carbon and high-efficiency advantages. As the key raw material for nuclear power, the green extraction of uranium is of great significance. In-situ leaching (ISL) has emerged as a mainstream method for uranium extraction owing to its environmentally friendly and efficient nature. However, low-permeability uranium deposits present significant challenges during ISL, such as poor lixiviant flow and low uranium recovery rates. As a mature permeability enhancement technique, hydraulic fracturing can effectively create fracture networks through the injection of fracturing fluids, thereby improving formation permeability and enhancing lixiviant flow, which ultimately increases uranium recovery efficiency. This paper systematically reviews various ISL processes and their applicability, and thoroughly analyzes the mechanisms and current research status of advanced hydraulic fracturing technologies, including multi-stage fracturing, diversion fracturing, intelligent fracturing, acid fracturing, foam fracturing, and supercritical CO2 fracturing. Based on the resource characteristics and extraction demands of low-permeability uranium deposits, this study proposes a synergistic application of ISL and hydraulic fracturing technologies. It further explores how hydraulic fracturing can enhance formation permeability and lixiviant efficiency. A development pathway integrating multiple technologies and intelligent optimization is suggested to achieve high-efficiency resource recovery and minimized environmental risks, providing robust support for the green and sustainable development of uranium mining.

Key words: nuclear energy, low-permeability uranium deposits, in-situ leaching, hydraulic fracturing

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