XMAC – Cross-Dipole Acoustic Logging

Description

The XMAC (Dipole Sonic) tool provides advanced acoustic measurements for accurate formation evaluation and geomechanical analysis. Unlike conventional monopole sonic tools, XMAC is capable of measuring shear wave velocity (DTS) in both fast and slow formations by generating dipole flexural waves along the borehole.

This technology enables reliable determination of elastic properties, stress orientation, and fracture-related anisotropy, making it an essential tool for wellbore stability analysis, mechanical earth model (MEM) construction, and fracture characterization. XMAC is especially valuable in deviated and horizontal wells, where understanding rock mechanical behavior is critical for safe drilling and optimal reservoir development.

Applications

• Anisotropy analysis (azimuthal & TI)

• Rock mechanical properties

• Structural imaging

• Petrophysical evaluation

• Thin-bed analysis

Features & Benefits

• All acoustic waveforms acquired in one run

• Inline shear & compressional data at 45 ft/min

• High-power broadband dipole transmitters

• High-quality shear without dispersion correction

Specification