Applications of the Array Induction Tool in Saudi Arabia
- Saudi Aramco, Dhahran (Saudi Arabia)
Since its introduction in Saudi Arabia in 1993, the Array Induction Tool (AIT) has been run extensively in a wide variety of petrophysical environments. These include fresh mud, salty mud, high and low resistivity formations, hydrocarbon-bearing or water-bearing reservoirs in carbonates and clastics sequences. In some examples, the AIT was also run in conjunction with the Phasor Induction (PI) or Dual-Laterolog for comparison purpose. As with any resistivity device, the AIT`s primary product, an accurate Rt measurement, should not be overlooked. However, owing to the AIT`s multiple vertical resolutions and depths of investigation, the authors found that the tool yields additional information about the reservoirs that is not possible with older induction tools. The AIT improves the estimation of Rt in cases of thin laminations, complex invasion profiles or when the borehole correction is critical (wash-out, salty mud, high resistivity). In many instances, permeable beds that are invaded are much easier to identify with the AIT than with dual depths of investigation induction or laterolog tools. a typical case is the interpretation of annulus. Finally, they show the AIT characteristic response in a thing magnetic marker.
- OSTI ID:
- 113393
- Report Number(s):
- CONF-950310--
- Country of Publication:
- United States
- Language:
- English
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