| 1西北石油管道建设指挥部 2管道公司西安调度中心
关键词： 电磁法 探查 埋地管道
随着利用天然气的城市逐年增加,大部份城市内要铺设天然气管网，对各城市原有埋地管线必须探查，文中简介了采用电磁及电磁激发极地法的检测原理和检测实例。并指出该法能有效地探查原有管道的走向及埋深。
The Exploration of Oil,Gas,Water Underground Pipeline by Electromagnetic Method
Yin Guoyao
Northwest Petroleum Pipeline Construction Headquarters，Xian 710021
Liang Jianqing
Xi'an Dispatch Center of the Pipeline Company，Xian 710021
Abstract：Following the citification of natural gas most cities need to lay the natrural gas pipeline in the city.So we must explore the underground pipeline that had already been laid in the city.Adopting the methods that polarized electromagnetism and electromagnetic excitation can effect ively explore the trend and barried deep of the existent pipeline.
Key Words：Electromagnetic Method,Explore,Underground Pipeline
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