Application of cylindrical linear phased array in casing borehole |
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| Authors: | SHI Fangfang WU Xianmei KE Yijing ZHANG Bixing |
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| Institution: | SHI Fangfang~1 WU Xianmei~1 KE Yijing~1 ZHANG Bixing~(1,2) (1 State Key Laboratory of Acoustics,Institute of Acoustics,Chinese Academy of Sciences Beijing 100190) (2 School of Geophysics , Oil Resource,Yangtze University Jingzhou 434023) |
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| Abstract: | An Ultrasonic Phased Array(UPA) transducer is presented for borehole imaging and casing inspection in acoustical logging.First,a Cylindrical Linear Phased Array(CLPA), which is made up of numbers of piezoelectric elements distributed on the surface of a cylinder uniformly,is designed and fabricated.By transmitting and receiving acoustic waves using different groups of elements under the control of the electric system,the CLPA can scan all area of the borehole wall dynamically and rapidly.Then the radiation ... |
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