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吉林油田用于测井的放射源共有 6 0枚 ,有伽玛源 ,也有中子源 ,有封闭型的 ,也有开放型的 ,最大源强度为 7 4× 10 11Ｂｑ ,最小源强度为 9 2 5× 10 4 Ｂｑ ,总强度约 5 18× 10 12 Ｂｑ ,绝大部分用在野外测井现场 ,是吉林省使用放射性同位素数量最多的单位。使用 2 0余年来
There are 60 radioactive sources used for logging in Jilin Oilfield. They are gamma source and neutron source. They are closed type and open type. The maximum source intensity is 7 4 × 10 11 Bq and the minimum source intensity is 9 2 5 × 10 4 Bq, and the total intensity is about 5 18 × 10 12 Bq. Most of them are used in field logging and are the units that use the most radioisotopes in Jilin Province. Used more than 20 years ago