报告人： Dr. Junwen Dai
时间: 10:45 am-11:30 am, Jul. 26, 2017
地点: 物理机电航空大楼438会议室
摘要: In this talk, we will present a pipe corrosion detection tool (EPXII) based on electromagnetic induction principle, which can exam the condition of multiple pipes without intrusion or deconstruction. The EPXII consists of two sets of transmitter and receiver, which have different TR spacings and frequencies. The first set of electromagnetic (EM) log data acquired by the T-R pair with higher frequency and shorter spacing can be used to accurately calculate the attributes of a first casing string. A second set of EM log data acquired by the T-R pair with longer spacing and lower frequency to calculate attributes of up to fifth pipes. A post-processing platform based on non-linear full inversion has been developed to quantitatively estimate the pipe thicknesses. Field tests from three different oilfields have been implemented, showing the effectiveness and efficiency of this tool.
报告人简介: Junwen Dai received the B.S. degree in electronic information science and technology from Xiamen University, Xiamen, China, in 2008, and the M.S. degree in radio science from Fudan University, Shanghai, China, in 2011, and the Ph.D. degree in electrical engineering from Duke University, in 2016. He joined Halliburton Energy Service, Inc., Houston, TX, as a senior research scientist in 2016. His research interests include computational electromagnetics with emphasis on finite element method and fast semi-analytical solvers, well logging, microwave imaging and target reconstruction.
