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Progress in geochemical element logging
MengFei CAO, WenSheng WU, XiaoYu SONG
Prog Geophy ›› 2025, Vol. 40 ›› Issue (6) : 2604-2617.
PDF(7512 KB)
PDF(7512 KB)
Progress in geochemical element logging
Geochemical logging has emerged as a cornerstone in the exploration and evaluation of unconventional oil and gas resources, owing to its ability to provide comprehensive data on reservoir characteristics. This paper aims to present a comprehensive review of the theoretical foundations, technological advancements, and future prospects in this field. Utilizing the Litho Scanner tool as a representative example, this study investigates its high-resolution and high-accuracy capabilities, enabling precise measurements of elemental concentrations, mineral compositions, and Total Organic Carbon (TOC). Recent progress in instrument development, including pulsed neutron sources and advanced scintillation crystals like LaBr3 and CeBr3, has significantly improved the reliability and resolution of geochemical logging tools. Additionally, the integration of Artificial Intelligence (AI) and Machine Learning (ML) algorithms has revolutionized data processing methodologies, enhancing mineral quantification efficiency and reducing uncertainty. Case studies demonstrate the successful application of geochemical logging in complex reservoir characterization, highlighting its superiority in evaluating mineralogy, porosity, and hydrocarbon saturation while minimizing reliance on traditional core analyses. This paper also discusses emerging trends, such as the miniaturization and multifunctionality of logging instruments, the development of intelligent detectors, and the increasing use of real-time data analysis through cloud-based platforms. The synthesis between geochemical logging and other advanced logging techniques, such as nuclear magnetic resonance (NMR) and dielectric dispersion, is projected to further enhance reservoir evaluation capabilities. In conclusion, geochemical element logging is poised to play an increasingly critical role in unconventional resource exploration, environmental monitoring, and mineral prospecting. Driven by technological innovation and interdisciplinary integration, its continued evolution is expected to create new opportunities for accurate, cost-effective, and sustainable resource development.
Geochemical logging / Litho scanner / Technological progress / Application
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感谢审稿专家提出的修改意见和编辑部的大力支持！
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