Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analysis of the Acoustic Wavefields Excited by the Logging-While-Drilling (LWD) Tool
Synthetic seismograms recorded with a logging-while-drilling (LWD) tool in the presence of slow formation are computed by the discrete wavenumber method. Monopole, dipole, and quadrupole logging tools are simulated with a source center frequency of 4 kHz. The modes in the responses are identified and characterized with time and frequency semblance plots. Numerical results show that, to obtain the formation shear velocity, we need to correct the peak velocities of the multipole modes in the semblance plots by using analytical dispersion curves.
Analysis of the Acoustic Wavefields Excited by the Logging-While-Drilling (LWD) Tool
Synthetic seismograms recorded with a logging-while-drilling (LWD) tool in the presence of slow formation are computed by the discrete wavenumber method. Monopole, dipole, and quadrupole logging tools are simulated with a source center frequency of 4 kHz. The modes in the responses are identified and characterized with time and frequency semblance plots. Numerical results show that, to obtain the formation shear velocity, we need to correct the peak velocities of the multipole modes in the semblance plots by using analytical dispersion curves.
Analysis of the Acoustic Wavefields Excited by the Logging-While-Drilling (LWD) Tool
Byun, Joongmoo (Autor:in) / Toksöz, M. Nafi (Autor:in)
Geosystem Engineering ; 6 ; 19-25
01.03.2003
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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