SDZ-30B0感应测井自然电位曲线异常研究

Study about Spontaneous Potential Curve Anomaly in SDZ-30B0 Induction Logging

根据SDZ-30B0双感应—八侧向测井仪器的特点、自然电位测井原理和自然电位曲线应用,对感应测井过程中自然电位曲线异常现象,从感应聚焦电路和隔离电路、自然电位环、自然电位信号通道这几个方面,提出解决思路和办法。提高自然电位曲线的成功率,更好地划分储集层、判断岩性和油气水层,提高测井时效及测井质量。

According to the characteristics of SDZ-30B0 dual induction-eight lateral logging instruments,SP logging principle and SP application,analysis has been conducted about induction logging SP anomaly,mainly from the aspects of the focus circuit and isolation circuit of the dual induction instrument,the SP ring,and the SP signal channel.In addition,the thought and solution methods have been put forward.These solution methods can improve the success rate of spontaneous potential curve,divide reservoirs,judge lithology and oil and gas layer,and improve the quality of logging.