Dipole shear sonic imager
Fully characterize compressional, shear, and Stoneley waves by combining monopole and dipole sonic acquisition capabilities.
Sonic Scanner acoustic scanning platform accurately measures the stress-dependent properties in the near-wellbore region axially, azimuthally, and radially to fully support geomechanical modeling.
The integration of multiple monopole and dipole transmitters with 13 receiver stations profiles formations in 3D while simultaneously obtaining a cement bond log when run in cased holes.
Regardless of the formation type and slowness, the Sonic Scanner platform overcomes conventional acoustic measurement barriers through its wide frequency range, multiple monopole and dipole transmitter-receiver spacings, and full characterization.
New 3D far-field sonic service extends sonic imaging far beyond the reach of standard sonic logging while also providing true dip and azimuth. The service automates what were previously manual tasks to efficiently and accurately determine connectivity for open fractures and identify subseismic structural features and formation layers, tracing them from the borehole wall through the near-field and far-field reservoir. You’ll significantly advance modeling of fractured reservoirs or conducting structural analysis with these rich far-field datasets and interpretations.
A single logging pass of the Sonic Scanner acoustic scanning platform configured for acquisition with enhanced telemetry acquires 3D far-field and standard sonic data at up to 3× the speed of conventional sonic logging. Data acquired from the eight azimuthal receivers at each of the platform’s 13 stations provide both monopole and dipole waveforms to respectively enhance resolution and deepen the depth of investigation. The service’s efficiency continues through the automated processing and interpretation workflow, which delivers consistent, precise quantitative results up to 10× faster than conventional processing. The smart migration workflow directly associates each quantified event to features in the sonic image. Quality control is significantly improved while avoiding the bias that can be introduced by manual interpretation.
3D far-field sonic service integrates results from borehole imaging logs to trace features from the near- to far-field reservoir. This seamless combination validates the near-wellbore structural environment while providing continuity for features that intersect the wellbore—as well as identifying and accurately placing those that don’t and would be otherwise undetected.
Integrating data from acoustic measurements with wellbore images and reservoir testing, estimated pore pressures, stress magnitudes, and the fracture gradient refines the mud-weight window to avoid future drilling challenges. Layered shales and fractured formations are readily identifiable to enable drillers to better maintain wellbore stability.
Properly contained hydraulic fractures are designed by using continuous stress profiles based on acoustic measurements because they account for shale layering and differential stress. The accuracy of stress profiles is honed by calibration with dual-packer stress tests and maps of wellbore failure occurrences from breakouts and induced fractures.
Quantification of anisotropy in rock mechanical properties and determination of the maximum horizontal stress guide completion design for achieving optimal production, especially in highly deviated or horizontal wells accessing unconventional reservoirs or where sanding is a concern. Measurement of the extent of the alteration zone and damage effects is used to calculate the necessary perforation penetration, and achieving uniformity in perforation performance is based on understanding stress anisotropy.
Distinguishing drilling-induced from natural fractures and using shear wave anisotropy and Stoneley wave data in conjunction with images to identify existing fractures as open or closed are important considerations for designing completions, targeting hydraulic fracturing, and maximizing production.
Well velocity calibration accounts for shale layering and stress anisotropy to refine the time-depth conversion for more accurate analysis, tie-ins, and use in applications such as seismic inversion.
Simulating complex fracture networks relies on calibration based on acoustic measurements for differential stress, geomechanical strain, and any existing discrete fracture networks.
Sonic Scanner platform logging can be used to relate physical rock properties to seismic data to improve the value of data in modeling.
Our petrotechnical experts work with you to apply advanced interpretation techniques and workflows to deliver answers from measurements made with the Sonic Scanner acoustic scanning platform.
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.
Automated workflow for structural dip and azimuth in complex carbonate reservoir resolves modeling uncertainties, Middle East.
Overcome the limitations of magnetic ranging technology and enable location of both the cased hole and openhole wells.
Workflow combines high-resolution sonic and resistivity imaging for optimizing completion design and hydraulic fracturing.
Compare near-wellbore and far-field reservoir fractures by using 3D far-field sonic service.
The multiple monopole and dipole transmitters of the Sonic Scanner platform produce compressional, shear, and Stoneley waveforms of unprecedented quality in either open or cased hole for radial profiling and numerous applications.