EWR®-PHASE 4™ Resistivity Sensors

The EWR®-PHASE 4™ family of wireline-quality, high frequency LWD induction resistivity sensors measures both the phase shift and the attenuation for each of the four transmitter-receiver spacings. EWR-PHASE 4 sensors can operate in water- and oil-based muds, as well as in air- and foam-drilled boreholes.

Applications

  • Rt, Rxo and Di in invaded formations
  • Rv and Rh in anisotropic formations
  • High-resolution Rt in deviated wells and/or dipping beds
  • Pre-invasion Rt measurement in deeply invading formations
  • Pre-washout Rt measurement in unconsolidated formations
  • LWD replacement for wireline array resistivity tools

SOLAR™: this sensor also exists in the high temperature/high pressure version. Please refer to the SOLAR datasheet for exact specifications.

EWR-PHASE 4 Resistivity Sensors

EWR®-PHASE 4 Resistivity Sensor

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Summary Oman: Operator Proves Cost Savings With LWD High-Resolution Imaging Service Mar 2017
Summary Middle East: Operator Gathers Valuable Formation Features with the Only Service in Larger Hole Sizes Dec 2016
Summary U.K. Offshore: Operator Saves Significant Rig Time by Gathering Complete Formation Evaluation Data in Real Time Nov 2016
Summary Russia: Slimhole Resistivity Sensor Helps Invigorate Mature Field Oct 2009
Summary Abu Dhabi: EWR-PHASE 4™ Sensor Saves Approximately $268,000 by Indicating Rock Quality Oct 2007
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