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Development and application of NDL461 digital comprehensive logging tool
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Yanqiang FENG1, 2, 3, He BU1, 2, 3, Yongcheng QIAO1, 2, 3, Xiao HUANG4, Shuai SHAO1, 2, 3, Honglong YU4, Xu ZHAO5, Lei LIU6, Fuqiang LIU6
World Nuclear Geoscience | 2025, 42(2) : 219 - 229
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World Nuclear Geoscience | 2025, 42(2): 219-229
• COVER PAPER •
Development and application of NDL461 digital comprehensive logging tool
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Yanqiang FENG1, 2, 3, He BU1, 2, 3, Yongcheng QIAO1, 2, 3, Xiao HUANG4, Shuai SHAO1, 2, 3, Honglong YU4, Xu ZHAO5, Lei LIU6, Fuqiang LIU6
Affiliations
  • 1 National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing, Beijing 100029， China
  • 2 Beijing Research Institute of Uranium Geology， Beijing 100029， China
  • 3 CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Techniques， Beijing 100029， China
  • 4 Geological Party No. 243， Chifeng 024000， China
  • 5 Research Institute No.203， Xi’an 710086， China
  • 6 Geological Party No.216， Urumqi 830011， China
Published: 2025-04-08 doi: 10.3969/j.issn.1672-0636.2025.02.001
Outline
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With the rapid development of sandstone-type uranium exploration in China, the workload of production logging has been increasing year by year. Simultaneously, with breakthroughs in the exploration of the “second prospecting space”，the logging depth is gradually increasing to 1 000 meters. The existing logging equipment requires 2-3 downhole operations to complete uranium geophysical logging，resulting in long logging times and risks such as borehole collapse and pipe sticking. By developing a modular multi-parameter downhole sub，we have addressed the issues of mutual constraints and interference among electrical，acoustic，and radioactive parameters in logging applications. This has led to the creation of a flexible downhole probe that can be combined according to actual application needs. We have also developed an integrated ground control platform and accompanying logging data acquisition and processing software, forming a highly integrated, noise-resistant, and fast-responding digital control system. This has culminated in the development of the new-generation NDL461 digital integrated logging tool. This logging tool has passed third-party verification and has been field-tested in the Songliao，Qaidam，Yili，and Tarim basins，demonstrating its stability，accuracy，and applicability. The developed logging tool provides technical equipment support for China’s fourth-generation uranium exploration technology system.

sandstone type uranium deposit  /  geophysical logging  /  logging tool  /  multi parameter combination
Yanqiang FENG, He BU, Yongcheng QIAO, Xiao HUANG, Shuai SHAO, Honglong YU, Xu ZHAO, Lei LIU, Fuqiang LIU. Development and application of NDL461 digital comprehensive logging tool[J]. World Nuclear Geoscience, 2025 , 42 (2) : 219 -229 . DOI: 10.3969/j.issn.1672-0636.2025.02.001
Funding
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  • Research and Development of Technology and Equipment for Direct Uranium Measurement Using Gamma Spectroscopy of CNNC(物KB2201)
Appendix
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Year 2025 volume 42 Issue 2
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139
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Article Info
doi: 10.3969/j.issn.1672-0636.2025.02.001
  • Receive Date：2024-12-26
  • Online Date：2025-10-29
  • Published：2025-04-08
Article Data
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History
  • Received：2024-12-26
  • Revised：2025-02-18
Funding
Research and Development of Technology and Equipment for Direct Uranium Measurement Using Gamma Spectroscopy of CNNC(物KB2201)
Affiliations
    1 National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing, Beijing 100029， China
    2 Beijing Research Institute of Uranium Geology， Beijing 100029， China
    3 CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Techniques， Beijing 100029， China
    4 Geological Party No. 243， Chifeng 024000， China
    5 Research Institute No.203， Xi’an 710086， China
    6 Geological Party No.216， Urumqi 830011， China
References
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https://castjournals.cast.org.cn/joweb/hdzkx/EN/10.3969/j.issn.1672-0636.2025.02.001
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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