Acoustic / Rock Mechanics

When acoustic (sound) waves are broadcast through the formation, the time taken for the waves to travel a fixed distance is measured. The velocities at which the various wave types travel are related to the properties of the formation and the fluids within. These velocities can be used for porosity estimation, elastic moduli, fracture detection, lithology determination, and well-to-well correlation.

This data can also be used in drilling applications (e.g., pore pressure determination, rock strength calculations, and borehole stability analysis) and in geophysical applications (e.g., time-to-depth, seismic correlation, synthetic seismogram, and AVO analysis).
BAT™ Bi-modal AcousTic Sensor
LWD acoustic tool that has multiple, dual-frequency transmitters and dual seven-receiver arrays to provide compressional and shear slowness (∆t) logs in both fast and slow formations.
Hostile Full WaveSonic Logging (HFWS™) Tool
Rated to 500°F and 30,000 psi. Wireline tool measures fast and slow shear wave travel times, P-wave slowness, compressive fluids in pore space, and anisotropy. Also calculates minimum and maximum principal stresses and stress field orientation.
QBAT™ Multipole LWD Sonic Tool
Delivering accurate acoustic measurements in the widest range of formations.
Rock Property Analysis RockXpert2™ Software
Helps reduce the risk of losses from borehole instability. Determines optimum mud weights required to prevent sanding and fracturing.
Six Arm Dipmeter (SEDSM) Service
Wireline service uses six arms to provide six formation micro-resistivity measurements, tool orientation data, and six caliper curves. This data is then correlated to identify bedding and other features in the formation.
Sonic Array Waveform Amplitude (BSAT™) Tool
Wireline tool integrates two monopole transmitters with an array of five piezoelectric receivers to measure compressional and shear compressional waves.
WaveSonic® Sonic Log Service
Wireline tool measures fast and slow shear wave travel times, P-wave slowness, compressive fluids in pore space, and anisotropy. Also calculates minimum and maximum principal stresses and stress field orientation.