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| Design of cross-dipole array acoustic logging tool |
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LU Jun-qiang1,JU Xiao-dong1,CHENG Xiang-yang2
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(1. School of Resource and Information Technology in China University of Petroleum, Beijing 102249, China;2. College of Petroleum Engineering in China University of Petroleum9 Dongying 257061，Shandong Province, China)
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| Abstract: |
| By analyzing the measuring principle of four-component cross-dipole, a kind of cross-dipole acoustic downhole tool was designed and the iir^jlementation of its measuring technique was given. Hie proposed tool was tested in production wells and test wells of various areas. Hie results show that signal-to-noise ratio (SNR) and characteristics of the measured waves are good, and that slowness curves of fast and slow waves, anisotropy, and fast and slow shear-wave azimuth match well with each other. |
| Key words: acoustic logging tool cross dipole anisotropy electronics sonde |
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