采用自然伽马能谱测井仪研究天然放射性元素的高度和深度分布规律

尝试提出将自然伽马能谱测井仪用于生态环境的研究。对自然伽马能谱测井仪、地面伽马能谱、室内分析、航空伽马能谱测量的同一地点钍、铀、钾元素含量进行对比分析得知,各种方法所得结果具有较好的一致性。通过16口浅层自然伽马能谱测井资料分析黄河三角洲浅层放射性的区域变化状况。研究发现,随着石油勘探开发程度的深入,浅层钍、铀、钾元素含量随之增高。将所采集的数据与地壳中钍、铀、钾元素含量的平均值进行比较,得出黄河三角洲地区的钍、铀、钾元素含量普遍较低的结论。

Research on Distribution for Natural Radioactive Elemenls at Different Height and Depp With Natural Gamma Ray Spectrum Logging

; The writer tries to bring creatively up a new way to research the ecosystem environment with natural gamma ray spectrum data. The data of natural gamma ray spectrum logging are of well conformity with the contents of thorium, uranium and potassium obtained by surface gamma ray survey, laboratory analysis and aerial gamma ray spectrum survey. The radioactivity variation of the shallow part of Yellow River delta with the natural gamma ray spectrum logging from 16 wells is studied. The results show that the contents of thorium, uranium and potassium in shallow parts increase with the enhanced degrees of oil exploration and developments, and their contents in the Yellow River delta are lower than the mean richness in the crust.