Schlumberger

ARI Azimuthal Resistivity Imager

As a component of triple- and quad-combo toolstrings, the ARI azimuthal resistivity imager makes 12 high-resolution directional measurements to provide deep oriented resistivity measurements, which measure past the invaded zone, in addition to standard deep and shallow resistivities. With a vertical resolution of less than 1 ft, ARI imager logging is particularly effective for thin-bed analysis.

The resulting triple- and quad-combo datasets provide the minimum information required for basic formation evaluation answers, such as porosity and saturations. This basic insight is readily expanded by combining the data with additional measurements. Integrated interpretation employs advanced workflows, the multidisciplinary expertise of our interpretation geoscientists and engineers working with you as needed, and software such as the Techlog wellbore software platform to maximize the value of your logging data. The result is the fullest possible understanding of complex lithologies, such as carbonate, shaly sand, and shale reservoirs.

Interpretation Services for Triple- and Quad-Combo Services
Including ARI Azimuthal Resistivity Imager
Basic Interpretation  Matrix-corrected total porosity, lithology, and clay volume 
Advanced Interpretation

Permeability estimation and bound fluids versus movable fluids

Structural dip information and net sand determination for laminated sequences

Fluid gradient analysis and mobility evaluation

Anisotropic rock mechanical properties for optimized well placement and completion design in layered formations

Reservoir fluid properties and connectivity studies

Accurate petrophysical analysis in laminated, complex, and low-porosity formations with direct determination of total organic carbon (TOC )

Detailed stratigraphic and textural geologic information

Fracture characterization


Related services and products

 
 

Deep Azimuthal Resistivity at a High Vertical Resolution

Deep conductive invasion example showing that the LLHR curve has a depth of investigation similar to that of the LLD curve and a vertical resolution approaching that of the MSFL curve.
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