G882磁力仪在东海某海底油气管道探测中的应用

Application of G882 Magnetometer in the Detection of a Submarine Oil and Gas Pipeline in the East China Sea

以东海某近岸抛石区海底油气管线为探测对象,进行海底管线正演模拟分析,并结合海域潮位变化设计磁梯度法探测方案。对磁测数据分析表明探测过程中磁探头受到海浪等的影响较大,使其磁异常数据存在较大的噪音干扰,不能利用该磁测数据对管道进行管线路由及埋深定量分析,文章针对探测过程中的影响因素提出相关磁测建议。

Taking the submarine oil and gas pipeline in a near-shore riprap area of the East China Sea as the detection object, the forward modeling simulation of the submarine pipeline is carried out, and the magnetic gradient method is proposed in combination with the tidal level change of the sea area. The analysis of the magnetic measurement data indicates that the magnetic probe is greatly affected by the waves and the like during the detection process, so that the magnetic anomaly data has large noise interference, and the pipeline measurement and the buried depth quantitative analysis cannot be performed by using the magnetic measurement data. This paper proposes relevant magnetic measurements for the influencing factors in the detection process.