| 地浸砂岩型铀矿镭—氡放射性平衡对伽玛测井解释结果的影响研究 |
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| 引用本文： | 李进学,李锦,阚小波,何进军.地浸砂岩型铀矿镭—氡放射性平衡对伽玛测井解释结果的影响研究[J].陕西地质,2010,28(2):66-71. |
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| 作者姓名： | 李进学 李锦 阚小波 何进军 |
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| 作者单位： | [1]西安地质矿产勘查开发院,西安710100 [2]陕西省核工业地质调查院,西安710054 [3]贵州省地矿局106地质大队,贵州遵义563000 [4]陕西省煤田地质局,西安710054 |
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| 摘 要： | 地浸砂岩型铀矿钻探勘查过程中,由于钻孔内＂压氡现象＂的存在,使钻孔内铀矿层的镭—氡含量出现暂时的不平衡现象,往往会造成伽玛测井解释结果系统偏低,影响了铀矿资源量评价的准确程度。因此在地浸砂岩型铀矿勘查过程中,必须设计一定数量的物探参数孔,及时开展镭—氡放射性平衡系数的研究和评价。
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| 关 键 词： | 地浸砂岩型铀矿 伽玛测井 压氡现象 镭—氡平衡系数 伽玛测井解释结果修正 |
RADIOACTIVITY EQUILIBRIUM IMPACT OF RADIUM-RADON IN IN-SITU LEACHABLE SANDSTONE TYPE URANIUM DEPOSITS ON INTERPRETATION GAMMA RAY LOGGING |
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| Li Jin-xue,Li Jin,Kan Xiao-po,He Jin-jun.RADIOACTIVITY EQUILIBRIUM IMPACT OF RADIUM-RADON IN IN-SITU LEACHABLE SANDSTONE TYPE URANIUM DEPOSITS ON INTERPRETATION GAMMA RAY LOGGING[J].Geology of Shaanxi,2010,28(2):66-71. |
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| Authors: | Li Jin-xue Li Jin Kan Xiao-po He Jin-jun |
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| Institution: | 1.Xi＇an Institute of Geology and Minerals,Xi＇an 710100;2.Shaanxi Institute of Nuclear Geology.Xi＇an 710054;3.Shaanxi Bureau of Coal Geology,Xi＇an 710054;4.Geological Team 106 of Guizhou Bureau of Geology and Mineral Resources,Zunyi 563000) |
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| Abstract: | The appearance of piezo-radon in boreholes may result in provisional un-equilibrium between radium-radon contents of uranium deposit during drilling.The changes in the equilibrium coefficients of radium-radon radioactivity often produce lower values of interpretation results from gamma logging,which would impact on the uranium resources evaluation.When exploration of in-situ leachable sandstone type uranium deposits,a certain amount of boreholes for geophysical coefficients is required to be included and assessment of the radium-radon radioactivity equilibrium should be commenced in time.If the radium-radon radioactivity equilibrium coefficient was over 0.3,revision would be made to the interpretation result from the gamma logging. |
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| Keywords: | in-situ leachable sandstone type uranium deposit gamma log appearance of piezo-radon radium-radon equilibrium coefficient interpretation of gamma logging revision of result |
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