ACOUSTIC LOGGING-WHILE-DRILLING TOOLS HAVING A HEXAPOLE SOURCE CONFIGURATION AND ASSOCIATED LOGGING METHODS
摘要
<p>Multipole acoustic logging-while-drilling (LWD) tools and associated methods are disclosed herein. In some embodiments, the disclosed acoustic LWD tool comprises a transmitter array and at least one receiver array. The transmitter array generates acoustic waves with an excitation pattern having a cutoff frequency greater than about 3 kHz. The receiver array is spaced apart from the transmitter array and is configured to detect said acoustic waves. Some of the disclosed method embodiments comprise: generating multipole acoustic waves in a fluid-filled borehole using an excitation pattern with a cutoff frequency greater than about 3 kHz; selectively detecting acoustic waves that propagate with said excitation pattern; and determining an acoustic shear wave slowness for a formation penetrated by the borehole.</p>
申请公布号
WO2006091516(A1)
申请公布日期
2006.08.31
申请号
WO2006US05901
申请日期
2006.02.17
申请人
HALLIBURTON ENERGY SERVICES, INC.;GEERITS, THEODORUS, W.;MANDAL, BATAKRISHNA;SCHMITT, DENIS, P.
发明人
GEERITS, THEODORUS, W.;MANDAL, BATAKRISHNA;SCHMITT, DENIS, P.