世界核地质科学2025，Vol.42Issue(2)：219-229,11.
NDL461型数字综合测井仪研制及应用
Development and application of NDL461 digital comprehensive logging tool
摘要
Abstract
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.关键词
砂岩铀矿/地球物理测井/测井仪/多参数组合Key words
sandstone type uranium deposit/geophysical logging/logging tool/multi parameter combination分类
地质学引用本文复制引用
冯延强,布和,乔永成,黄笑,邵帅,余弘龙,赵旭,刘磊,刘富强..NDL461型数字综合测井仪研制及应用[J].世界核地质科学,2025,42(2):219-229,11.基金项目
中核集团"井下伽马能谱直接测铀技术与装备研发"项目(编号:物KB2201)资助 Supported by Research and Development of Technology and Equipment for Direct Uranium Measurement Using Gamma Spectroscopy of CNNC(No.物KB2201) （编号:物KB2201）
