摘要
过套管测井对于老井挖潜、剩余油探测和套后储层评价有重要意义。研究了套管接箍对过套管电磁测井的影响及接箍磁导率对电磁信号穿透能力的影响。依据井筒结构的电磁响应模型,计算了套管接箍的厚度变化对感应电动势影响,给出了套管接箍突然变厚和减薄时的感应电动势响应特性,为感应式过套管电阻率测井的接箍校正提供了依据。
Through-casing logging was great significance for tapping the potential in old oil wells,residual oil exploration and reservoir evaluation.The effect of through-casing collar on electromagnetic logging and the influence of magnetic conductivity of the collar on the penetration ability of electro-magnetic signals were studied.According to the electromagnetic response modeling of wellbore structure,the effect of induced electromagnetic force(EMF)is calculated with the increased and decreased thickness of the casing collar,and it provides a basis of the correction of casing collars used in through-casing logging
出处
《长江大学学报（自科版）（中旬）》
2016年第9期33-35,4-5,共3页
Journal of Yangtze University(Nature Science Edition)
基金
陕西省科技攻关项目(2016GY-17)
关键词
过套管
电磁测井
接箍
感应电动势
through casing
electromagnetic logging
casing collar
induced EMF
