The New Progress in Near-surface Seafloor Ezploration by Transient Electromagnetic Method
Transient electromagnetic method has been used to investigate the conductivity of seafloor since late 20th century. When the exploration was done, two antennas of large separation distance were placed over seafloor, and the step response is measured. In this paper, we study the exploration of seafloor conductivity by measuring the inductive voltage of receiver loop, which is the time derivative of step response. A configuration of central loop is used. Its transmitter loop is small and a smaller receiver loop is placed in the center. An instrument system which can be put into water and controlled from the computer on ship is developed for the exploration. Because the configuration is small and part function of the instrument system is specially designed for measurement during moving, high efficient, towed exploration can be easily achieved. Finally, an experiment of seafloor exploration was performed in Hulu Island, Liaoning province, and two oil pipelines are found.
Jun Lin Changsheng Liu Yan Wang Fengdao Zhou Hui Li
Key Lab of Geo-Exploration and Instrumentation, Jilin University, Ministry of Education Changchun, China
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
1537-1539
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）