The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A new method based on the predicting of phase difference (PPM) is developed to extract phase slowness from multi-channel dispersive waves. This method is verified by synthesized multipole array waveforms and field data measured by a multipole array acoustic logging tool (MPAL). The results show that this method is fast and stable for dispersion analysis.
A method of frequency inversion (FIM) is developed to analyze phase slowness of multi-channel dispersive waves. To verify this method, we processed both the synthesized multipole array waveforms excited by dipole source in fluid-filled borehole and field data measured by a multipole array acoustic logging tool (MPAL). The results show that FIM method is of better performance than the traditional method.
Formation anisotropy evaluation is very important for complex reservoir in petroleum exploration. Cross-dipole array acoustic well logging technology breaks the restriction that shear waves could not be measured in soft formations. The cross-dipole acoustic data can be used to study the formation anisotropy. This paper presents an example of cross-dipole application of multi-pole acoustic logging...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.