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Tolteq iSeries Near-bit Sub underground render

Tolteq iSeries Near-Bit Sub

Provides real-time inclination and azimuthal gamma data from directly above the drill bit for accurate and precise well placement

  • Description Description
  • Resources Resources

Our Tolteq™ iSeries near-bit sub (iNBS) tool connects with the Tolteq iSeries mud-pulse measurement-while-drilling (MWD) platform for real-time data transmission. Providing continuous inclination and azimuthal gamma images with up to 16 sectors available in real time, the iNBS tool enables accurate well placement even in the thinnest of reservoirs. As the shortest near-bit measurement sub on the market, the iNBS tool ensures steerability when run below a motor.


  • Dynamic inclination measurement allows continuous monitoring of well trajectory progression while drilling
  • Azimuthal gamma ray imaging with up to 16 sections of gamma measurement for proactive geosteering
  • Electromagnetic short-hop telemetry seamlessly transmits data through Tolteq iSeries MWD to surface


  • Monitors bit progression at any time
  • Tightly places wellbores through even the thinnest pay zones
  • Continually acquires images in sliding mode

For more information, email [email protected]

  • Tolteq iSeries Near bit Sub spec sheet

Find Out More

Looking for more? Log in to our Tolteq Hub for additional information, contact our product support groupor submit a repair request and one of our representatives will follow up with you directly. You can also explore our Tolteq release notes to stay up to date on new product features and fixes.

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