X-tended Range Micro Imager (XRMI™) Tool

Superior borehole images, even in highly resistive formations

Our X-tended Range Micro Imager (XRMI™) tool is designed to obtain superior quality images specifically in water-based mud environments. With six pads mounted in independent articulated arms, the XRMI tool has a total of 150 microresistivity sensors. These are used to image the borehole with a vertical and horizontal resolution of 0.2 in.

Highly resistive formation, high-quality borehole images

Powered by a 32-bit digital signal acquisition architecture and large excitation current, the XRMI tool delivers excellent signal-to-noise ratio and dynamic range. The result is high-resolution borehole images of your reservoir, even in highly resistive formations (Rt > 2000 ohm-m) or relatively salty borehole fluids (Rm < 0.1 ohm-m).

Our images provide you with invaluable information. This includes dip and azimuth for the analysis and modeling of structural and stratigraphic features, fractures, faults, folds, unconformities, thin-bed evaluation, geomechanics, and complement or replace core. The images aid in the selection of zones for formation tester placement. When run after sidewall coring operations, it shows the exact location where the cores were taken, especially if run with the CAST™ tool.


  • Optimize offset well placement by evaluating structural and stratigraphic features and bedding orientation
  • Improve net-to-gross estimations in laminated shaly sands and carbonates by delineating thin beds and laminations
  • Rationalize well stimulation and formation testing decisions by characterizing the secondary porosity (e.g., fractures and vugs) in reservoirs
  • Optimize drilling efficiency by evaluating and orienting borehole breakout
  • Optimize completion tactics and reservoir management by providing characterization of rock texture and electrofacies

Water Based Mud Imaging (XRMISM) Log Service

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