Schlumberger

DSI Dipole Shear Sonic Imager

Our petrotechnical experts work with you to apply advanced interpretation techniques and workflows to the measurements with combined monopole and dipole acquisition by the DSI dipole shear sonic imager. Advanced sonic waveform processing and analysis provide critical information for completion optimization, sanding prediction, wellbore stability studies, and mechanical earth models. Shear wave splitting and orientation of the fast shear azimuth guide lateral well placement, and Stoneley analysis can indicate and characterize fractures as well as reveal formation mobility.


Interpretation Services for DSI Dipole Shear Sonic Imager
Wellsite Answers  

Compressional slowness

Shear slowness

Poisson’s ratio

V/Vs
Standard Interpretation  

Waveform processing: 

    Compressional slowness

    Shear slowness

    Stoneley slowness

Isotropic mechanical properties for completion optimization

Light hydrocarbon detection
Advanced Interpretation   

Shear anisotropy processing

    Fast shear slowness

    Slow shear slowness

    Maximum stress orientation (fast shear azimuth)

Mapping of formation boundaries via borehole        acoustic reflection survey (BARS)

Stoneley mobility

Stoneley fracture analysis

Anisotropic (3D) mechanical properties for optimized completions in layered formations.

Sanding prediction, safe drawdown analysis

Integration with borehole images

Compressional, shear, and Stoneley wave radial profiling:

     Identify formation damage     

     Perforation optimization

     Sampling optimization

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