Analysis of Forward and Measured Magnetic Anomalies of Submarine Pipeline

被引：0

作者：

Wang F. ^{[1
]}

Song Y. ^{[1
]}

Dong L. ^{[1
]}

Liu Z. ^{[2
]}

Lin X. ^{[1
]}

Tao C. ^{[1
]}

机构：

[1] First Institute of Oceanography, Ministry of Natural Resources, Qingdao

[2] Research Institute of Engineering Technology, CNPC, Tianjin

来源：

Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2019年 / 44卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Magnetic anomaly forward; Marine magnetic method; Submarine pipeline; Theoretical model; Thermal residual magnetism;

D O I：

10.13203/j.whugis20180033

中图分类号：

学科分类号：

摘要：

The theoretical calculation model of magnetic anomaly of submarine pipeline is derived by Poisson formula method of gravity and magnetic field. For two known submarine gas pipelines, the forward simulation calculation and sea test verification are carried out. The forward results show that positive magnetic anomalies with a span of about 20.0 m and up to 329.8 nT and 362.4 nT respectively are produced on an observation plane of about 8.0 m from the submarine pipeline. The measured distribution spans of magnetic anomalies of submarine pipeline are consistent with the results of forward modeling, but the details of their distributions are different. Both positive and negative magnetic anomalies exist. By analyzing the distribution characteristics of the extreme points of magnetic anomalies, it is speculated that the thermal residual magnetism at the junctions of the pipeline may lead to the detailed characteristics of the measured magnetic anomalies. © 2019, Editorial Board of Geomatics and Information Science of Wuhan University. All right reserved.

引用

页码：1511 / 1517

页数：6

共 15 条

[1]

Liang R., Liu B., Zhang Z., Et al., Magnetic Application in Site and Pipeline Engineering Geological Survey, Marine Sciences, 27, 12, pp. 55-57, (2003)

[2]

Ren L., Huang M., Zhai G., Et al., A Model for Calculating Magnetic Field of Underwater Pipeline, Hydrographic Surveying and Charting, 27, 1, pp. 1-6, (2007)

[3]

Zhong X., Pei Y., Discussion of the Survey Method of the Seabed Cables Using the Magnetometer, Marine Sciences, 25, 9, pp. 10-11, (2001)

[4]

Yu B., Liu Y., Bian G., Et al., Magnetism Detecting Method for Seabed Cable in Marine Engineering Surveying, Geomantics and Information Science of Wuhan University, 31, 5, pp. 454-457, (2006)

[5]

Pei Y., Liang R., Zheng Y., Et al., The Method and Practices of the Submarine Pipelines Detection Using Magnetometers, Progress in Geophysics, 27, 5, pp. 2226-2232, (2012)

[6]

Szyrowski T., Sharma S.K., Sutton R., Et al., Developments in Subsea Power and Telecommunication Cables Detection: Part 2-Electromagnetic Detection, International Journal of the Society for Underwater, 31, 3, pp. 133-143, (2013)

[7]

Ma Y., Li J., Wu Z., Et al., The Application of an Integrated Geophysical Prospecting System to Underwater Rrcheology-An Example from Chuan Island, Guangdong Province, Journal of Marine Sciences, 34, 2, pp. 43-52, (2016)

[8]

Liu C., The Comparative Analysis of Multi-beam Sounding System, Side-Scan Sonar and Magnetometer in the Wreck Detection, (2015)

[9]

Lu B., Study on the Key Technologies for Detecting Underwater Objects Using the Magnetic Survey and Their Applications, (2015)

[10]

Billings S.D., Discrimination and Classification of Buried Unexploded Ordnance Using Magnetometry, IEEE Transactions on Geoscience & Remote Sensing, 42, 6, pp. 1241-1251, (2004)

← 1 2 →