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    地球物理技术在氦气勘探开发中的应用进展、挑战及展望

    Application progress, challenges and prospects of geophysical techniques in helium exploration and development

    • 摘要: 氦气作为关系国家安全与高科技产业发展的战略性稀有不可再生资源,其高效勘探是缓解我国资源对外依存度高、破解“卡脖子”困境的关键。当前,氦气成藏机理复杂、勘探技术针对性不足、不同地质条件下技术适配性差异显著等问题,制约了我国氦气资源的勘探开发进程。本文系统综述了氦气地球物理勘探领域的国内外研究现状、前沿进展与应用实践,在阐明氦气物理化学性质、成藏地质背景及我国资源分布特征的基础上,重点整合测井、地震、电磁等核心地球物理勘探技术的研究成果、技术原理、应用场景及现存局限,论述了氦气地球物理勘探技术的完整技术框架。研究表明,壳源铀钍放射性衰变是工业氦气的主要生成途径,富铀钍氦源岩、深大断裂运移通道、优质储盖组合及有效圈闭是氦气成藏的核心控制要素;系统总结了自然伽马能谱测井、常规测井、成像测井、核磁共振测井在氦源岩评价、储层精细刻画中的技术优势与应用进展,梳理了地震勘探技术在区域构造解析、圈闭落实中的创新应用,以及广域电磁法等电磁技术在氦气探测中的突破优势,分析了重磁电震多方法协同勘探的研究现状与应用成效。结合青海共和盆地、渭河盆地、塔里木盆地及坦桑尼亚鲁夸湖地区等典型含氦区域的勘探实践,本文总结了不同地质背景、不同成藏类型氦气藏的地球物理勘探技术适配模式,明确了各类技术在实际应用中的优势与不足。同时,指出当前氦气地球物理勘探领域存在的核心瓶颈:深层超深层数据获取难度大、勘探理论与技术标准不完善、单一技术多解性强等,并展望了未来智能化、高精度、多技术融合的勘探技术发展方向。本文通过系统整合氦气地球物理勘探领域的研究成果,厘清了技术发展脉络,明确了研究热点与现存短板,为该领域后续研究提供了清晰的理论与技术参考框架,对推动氦气勘探技术标准化、提升我国富氦气藏勘探效率、保障我国氦气资源安全具有重要的学术价值与实践指导意义。

       

      Abstract: As a strategic, rare, and non‑renewable resource critical to national security and the development of high‑tech industries, helium urgently requires efficient exploration to reduce China’s high external dependence and address key technological bottlenecks. The progress of helium exploration and development in China is constrained by the complex accumulation mechanisms, insufficiently targeted technologies, and large variations in technical applicability across different geological settings. This paper systematically reviews the global research status, recent advances, and practical applications of geophysical exploration for helium. Based on clarifying helium’s physical and chemical properties, geological settings, and resource distribution in China, this paper synthesizes key geophysical methods (well logging, seismic, electromagnetic methods), summarizes their principles, applications, and limitations, and establishes a complete technical framework for helium geophysical exploration. Results show that radioactive decay of crustal uranium and thorium is the primary source of commercial helium. Helium accumulation is mainly controlled by U‑ and Th‑rich source rocks, deep‑rooted fault migration pathways, high‑quality reservoir‑seal assemblages, and valid traps. This paper summarizes the advantages and progress of spectral gamma ray, conventional, imaging, and nuclear magnetic resonance logging in helium source rock evaluation and reservoir characterization. It also reviews innovative applications of seismic exploration in structural analysis and trap delineation, breakthroughs of electromagnetic methods (e.g., wide‑field electromagnetic), and the performance of joint gravity‑magnetic‑electrical‑seismic exploration. Using case studies from the Gonghe, Weihe, and Tarim Basins in China and the Lake Rukwa area in Tanzania, this paper summarizes suitable geophysical strategies for helium reservoirs under varied geological conditions and accumulation types, and clarifies the strengths and weaknesses of each technique. Key challenges include difficulties in acquiring deep and ultra‑deep data, incomplete theoretical and technical standards, and strong non‑uniqueness of single methods. Future directions are highlighted: intelligent, high‑precision, and multi‑method integrated exploration. By systematically synthesizing advances in helium geophysical exploration, this review clarifies the technological evolution, identifies research hotspots and gaps, and provides a clear theoretical and technical framework for future studies. It has significant academic value and practical implications for standardizing helium exploration, improving discovery efficiency, and safeguarding national helium security.

       

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