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介电测井所测量的是地层中传播的电磁波的衰减和相位移 ,并由此计算出地层的介电常数和电导率。电磁波在地层中的传播效应受到地层电导率、介电常数及电磁波频率的共同影响。根据这些影响因素提出了一种针对阿特拉斯 47MHz介电测井仪的测井资料校正方法 ,并应用常规声波曲线与介电常数重叠的方法有效地定性识别油水层。
Dielectric logging measures the attenuation and phase shift of electromagnetic waves propagating in the formation and calculates the dielectric constant and conductivity of the formation. The propagation of electromagnetic waves in the formation is affected by the conductivity of the formation, the dielectric constant and the frequency of the electromagnetic waves. According to these factors, a logging data correction method for Atlas 47MHz dielectric logging tool is proposed. The oil-water layer can be identified qualitatively by using the method of conventional acoustic wave curve and dielectric constant overlap.