EWR-P4地层电阻模拟盒研制

Development of EWR-P4 Formation Resistance Simulation Box

地层岩石的电阻率变化与地层含油气性紧密相关。电磁感应测井是最常见的电阻率测井方法之一。随钻电磁感应测井仪通过发射器向地层发射电磁波信号,经过不同电阻的地层,电磁波相位发生改变,在接收端能接收到不同的相位。现有常规检测方式为空气零检测,手段较为单一,不能识别仪器对不同地层电阻的相应情况。该文设计出一套能够模拟不同地层电阻,对随钻电磁感应设备进行检验的测试装置。丰富了设备的测量方式,提升了设备的可靠性。

The resistivity variation of formation rocks is closely related to the formation oil-gas bearing property.Electromagnetic induction logging is one of the most common resistivity logging methods.Electromagnetic wave signals are sent to the formation by the electromagnetic induction logging tool while drilling.The phase of electromagnetic wave changes through the formation with different resistances,and different phases can be received at the receiving end.The conventional detection method of electromagnetic induction equipment is air zero detection.It can't be identified the corresponding conditions of the instrument to different formation resistances.This paper designs a set of testing equipment that can simulate different formation resistances and test the electromagnetic induction equipment while drilling,which enriches the measuring method of the equipment and improves the reliability of the equipment.