If there is hydrocarbon in the formation, an abnormal value will occur in the low frequency part of the amplitude spectrum ratio eurve o On the contrary, when no hydrocarbon exists in the formation there will be no abnormal value on the curve.
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美
- 當地層含有油氣時(shí),在振幅譜比曲線(xiàn)的低頻部分就出現異常值; 反之,不含油氣時(shí),就不出現振幅譜曲線(xiàn)異常。