Research output

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  1. 2013
  2. Published

    Experimental determination of wellbore diameter and shape (4D imaging of wellbore) by using ultrasonic caliper within different fluids for real-time drilling application

    Elahifar, B., Esmaeili, A., Fruhwirth, R. K. & Thonhauser, G., 2013, In: Oil gas European magazine. 39, 1, p. 16-19 4 p.

    Research output: Contribution to journal › Conference article › peer-review

  3. Published

    Formation Prediction Model based on Drill String Vibration Measurements Using Laboratory Scale Rig

    Esmaeili, A., Elahifar, B., Fruhwirth, R. K. & Thonhauser, G., 2013. 9 p.

    Research output: Contribution to conference › Paper › peer-review

  4. Published

    Improving Time Series Classification Using Hidden Markov Models

    Esmael, B., Arnaout, A., Fruhwirth, R. & Thonhauser, G., 2013, Hybrid Intelligent Systems (HIS) Conference. p. 1-1

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  5. Published

    Model Based Monitoring of Wellbore Hydraulics for Abnormal Event Detection

    Todorov, D., Fruhwirth, R. K. & Thonhauser, G., 2013, In: Oil gas European magazine. 39, 1, p. 33-35 3 p.

    Research output: Contribution to journal › Conference article › peer-review

  6. Published

    Model-Based Hookload Monitoring and Prediction at Drilling Rigs using Neural Networks and Forward-Selection Algorithm

    Arnaout, A., Esmael, B., Thonhauser, G. & Fruhwirth, R., 2013, European Geosciences Union General Assembly 2012. p. 1-1

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  7. Published

    Operations Recognition at Drill-Rigs

    Esmael, B., Arnaout, A., Thonhauser, G. & Fruhwirth, R., 2013, European Geosciences Union General Assembly 2012. p. 1-1

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  8. Published

    Real-Time Classification of Drilling Operations using Trend Analysis of Hookload Sensor Measurements

    Arnaout, A., Esmael, B., Fruhwirth, R. & Thonhauser, G., 2013, Kuwait International Petroleum Conference and Exhibition. p. 1-1

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  9. Published

    Stable isotopes of organics and inorganics, clay mineralogy and chemical environment of an Aptian lacustrine succession in northeastern Brazil

    Gratzer, R., Neumann, V. H., Vortisch, W., Rocha, D. E. A. & Bechtel, A., 2013, Isotopic Studies in Cretaceous Research. p. 157-183

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  10. Published

    Wellbore Instability Monitoring by Using 4D Imaging of Ultrasonic Caliper Logs in Real Time Drilling

    Elahifar, B., Esmaeili, A., Fruhwirth, R. K. & Thonhauser, G., 2013, Wellbore Instability Monitoring by Using 4D Imaging of Ultrasonic Caliper Logs in Real Time Drilling. p. 4346-4353 8 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  11. 2012
  12. Published

    A Statistical Feature-Based Approach for Operations Recognition in Drilling Time Series

    Esmael, B., Arnaout, A., Fruhwirth, R. & Thonhauser, G., 2012, In: International Journal of Computer Information Systems and Industrial Management Applications . 4, 6, p. 100-108

    Research output: Contribution to journal › Article › Research › peer-review

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