Publications

2018

Optimization of core retrieval using a Thermo-Poro-Elastic (T-P-E) approach
Ashena, R., Thonhauser, G., Vortisch, W., Rasouli, V. & Azizmohammadi, S. Aug 2018
PEER REVIEWED ARTICLE

Optimization of core retrieval using a Thermo-Poro-Elastic (T-P-E) approach
Ashena, R., Thonhauser, G., Vortisch, W., Rasouli, V. & Azizmohammadi, S. Aug 2018
PEER REVIEWED ARTICLE

Bio Enhanced Energy Recovery Technology for clean and efficient Energy Production
Mukhamedzianova, A., Langbauer, C., Eisner, P. & Hofstätter, H. 12 Jun 2018
POSTER

Sophisticated Performance Evaluation of Sucker Rod Pumping Systems
Langbauer, C., Eisner, P., Fazeli Tehrani, F., Fruhwirth, R. & Hofstätter, H. 12 Jun 2018
POSTER

Finite Elemente Simulation zur Auslegung der alternativen Anwendung von Seilen als Tiefpumpengestänge
Fazeli Tehrani, F. & Langbauer, C. 16 May 2018
CONFERENCE CONTRIBUTION

CFD Simulation einer neuartigen hydraulischen Untertagepumpe zur Förderung von Erdöl
Langbauer, C., Vita, P., Jax, G. & Hofstätter, H. 15 May 2018
CONFERENCE CONTRIBUTION

CFD Simulation der Flüssigkeitsreibung von Öl-Wassergemischen bei Gestängetiefpumpen
Langbauer, C. & Vita, P. 15 May 2018
CONFERENCE CONTRIBUTION

CFD Simulation einer neuartigen hydraulischen Untertagepumpe zur Förderung von Erdöl
Langbauer, C., Vita, P., Jax, G. & Hofstätter, H. 15 May 2018
CONFERENCE CONTRIBUTION

CFD Simulation der Flüssigkeitsreibung von Öl-Wassergemischen bei Gestängetiefpumpen
Langbauer, C. & Vita, P. 15 May 2018
CONFERENCE CONTRIBUTION

Numerical Study of a new Hydraulic Subsurface Pump
Langbauer, C., Vita, P. & Jax, G. 24 Apr 2018
CONFERENCE CONTRIBUTION

Sucker Rod Pump Fluid Friction Evaluation
Langbauer, C. & Vita, P. 24 Apr 2018
CONFERENCE CONTRIBUTION

Sucker Rod String Design Optimization using an Innovative Finite Elements Simulation Approach
Langbauer, C., Hofstätter, H. & Antretter, T. 24 Apr 2018
CONFERENCE CONTRIBUTION

Numerical Study of a new Hydraulic Subsurface Pump
Langbauer, C., Vita, P. & Jax, G. 24 Apr 2018
CONFERENCE CONTRIBUTION

Sucker Rod Pump Fluid Friction Evaluation
Langbauer, C. & Vita, P. 24 Apr 2018
CONFERENCE CONTRIBUTION

Sucker Rod Pump Testing Facility
Langbauer, C., Kaserer, G. & Winkler, T. 20 Apr 2018
CONFERENCE CONTRIBUTION

Hydraulic Subsurface Pump Numerical Study
Jax, G., Langbauer, C. & Vita, P. 19 Apr 2018
CONFERENCE CONTRIBUTION

Analysis and Siulation of a High-Performance Wire Rope as Continuous Sucker Rod String
Fazeli Tehrani, F., Langbauer, C. & Hofstätter, H. 19 Apr 2018
POSTER

Sucker Rod String Design Optimization using an Innovative Finite Elements Simulation Approach
Langbauer, C., Hofstätter, H. & Antretter, T. 19 Apr 2018
CONFERENCE CONTRIBUTION

Analysis and Simulation of a High-Performance Wire Rope as Continuous Sucker Rod String
Fazeli Tehrani, F., Langbauer, C. & Hofstätter, H. 19 Apr 2018
CONFERENCE CONTRIBUTION

Feasibility Study of a Subsurface located Geothermal Well
Langbauer, C. & Schwarzenegger, C. 19 Apr 2018
CONFERENCE CONTRIBUTION

Hydraulic Subsurface Pump Numerical Study
Jax, G., Langbauer, C. & Vita, P. 19 Apr 2018
CONFERENCE CONTRIBUTION

Hydraulic Concentric Tubular Pumping System for lifting Oil in EOR Completions
Langbauer, C., Vita, P., Jax, G. & Hofstätter, H. 28 Mar 2018
PAPER

Hydraulic Concentric Tubular Pumping System for lifting Oil in EOR Completions
Langbauer, C., Vita, P., Jax, G. & Hofstätter, H. 28 Mar 2018
PAPER

Frequency Drive System Operation of Sucker Rod Pumping Systems
Langbauer, C. & Winkler, T. 26 Mar 2018
PEER REVIEWED PAPER

Industrial Application of a Linear Drive System in a Pump Testing Facility
Langbauer, C. & Kaserer, G. 26 Mar 2018
PEER REVIEWED PAPER

Phase Behaviour of Alkali Solutions
Toumi, O. 2018
MASTER'S THESIS

Drag Reducing Agents
Bouchhima, A. 2018
MASTER'S THESIS

2017

Finite Element Based Optimization and Improvement of the Sucker Rod Pumping System
Langbauer, C. & Antretter, T. 16 Nov 2017
PEER REVIEWED PAPER

Hydraulic Subsurface Pump kinetic CFD Simulation
Jax, G., Langbauer, C. & Vita, P. 06 Nov 2017
POSTER

Hydraulic Subsurface Pump kinetic CFD Simulation
Jax, G., Langbauer, C. & Vita, P. 06 Nov 2017
POSTER

Sucker Rod Pump Fluid Friction Evaluation
Langbauer, C. & Vita, P. 06 Nov 2017
POSTER

Sucker Rod Pump Fluid Friction Evaluation
Langbauer, C. & Vita, P. 06 Nov 2017
POSTER

Numerical Investigation of Fracture-Rock Matrix Ensemble Saturation Functions and their Dependence on Wettability
Sedaghat, M., Azizmohammadi, S. & Matthäi, S. Nov 2017
PEER REVIEWED ARTICLE

Is the permeability of naturally fractured rocks scale dependent?
Azizmohammadi, S. & Matthäi, S. 23 Sep 2017
PEER REVIEWED ARTICLE

Ensemble relative permeability in naturally fractured rocks: the role of wettability
Sedaghat, M., Azizmohammadi, S. & Matthäi, S. 14 Sep 2017
PEER REVIEWED PRESENTATION

A Thermoporoelastic (T-P-E) Model Developed for Core Tripping Failure Analysis
Ashena, R., Thonhauser, G., Ott, H., Rasouli, V., Azizmohammadi, S. & Prohaska-Marchried, M. 27 Aug 2017
PEER REVIEWED PRESENTATION

A Thermoporoelastic (T-P-E) Model Developed for Core Tripping Failure Analysis
Ashena, R., Thonhauser, G., Ott, H., Rasouli, V., Azizmohammadi, S. & Prohaska-Marchried, M. 27 Aug 2017
PEER REVIEWED PRESENTATION

Alternative Valve Design for SRP Pumps
Hopf, M. 2017
MASTER'S THESIS

GOHFER® software evaluation
Mukhamedzianova, A. 2017
MASTER'S THESIS

Gas Lift Design Optimization
Trichili, S. 2017
MASTER'S THESIS

Analysis of the Impact of Wellbore Quality
Gamperl, F. 2017
MASTER'S THESIS

Process and Procedure for Gas Well Deliquification
Kulagina, A. 2017
MASTER'S THESIS

Frequency-Elastic Operations of Sucker Rod Pumps
Knauhs, P. 2017
MASTER'S THESIS

Oil components in Smart water processes
Kocyigit, S. 2017
MASTER'S THESIS

CO2 Foam Flooding with Integrated EOR and Storage
Csanadi, D. 2017
MASTER'S THESIS

2016

Application of Computer Programming to Estimate Volumetric Change of an Active Drilling Fluid System Cause by Elastic Deformation of an Open Borehole Section Wall
Elmgerbi, A., Thonhauser, G., Prohaska-Marchried, M., Roohi, A. & Nascimento, A. 01 Dec 2016
PEER REVIEWED PAPER

Die Integrität von Tiefbohrungen
Prohaska-Marchried, M. Dec 2016
ARTICLE

Simulation-based Determination of Relative Permeability in Laminated Rocks
Sedaghat, M., Gerke, K., Azizmohammadi, S. & Matthäi, S. 29 Nov 2016
PEER REVIEWED ARTICLE

Multiscale Description of Shale Pore Systems by Scanning SAXS and WAXS Microscopy
Leu, L., Georgiadis, A., Blunt, M., Busch, A., Bertier, P., Schweinar, K., Liebi, M., Menzel, A. & Ott, H. 02 Nov 2016
PEER REVIEWED ARTICLE

How Fracture Capillary Pressure Affects Ensemble Relative Permeability of Naturally Fractured Reservoirs
Sedaghat, M., Azizmohammadi, S. & Matthäi, S. 29 Aug 2016
PEER REVIEWED POSTER

Micro-CT study of the Impact of Low Salinity Waterflooding on the pore-scale fluid distribution during flow
Bartels, W., Rücker, M., Berg, S., Mahani, H., Georgiadis, A., Brussee, N., Coorn, A., van der Linde, H., Fadili, A., Hinz, C., Jacob, A., Wagner, C., Henkel, S., Enzmann, F., Bonnin, A., Ott, H., Blunt, M. & Hassanizadeh, S. 21 Aug 2016
PEER REVIEWED PAPER

Modelling of Imbibition Relative Permeability by Direct Quasi-Static Approach
Berg, S., Rücker, M., Ott, H., Georgiadis, A., van der Linde, H., Enzmann, F., Kersten, M., Armstrong, R., de With, S., Becker, J. & Wiegmann, A. 21 Aug 2016
PEER REVIEWED PAPER

The Challenge of Deriving Saturation Functions for Laminated Heterogeneous Rocks
Sedaghat, M., Gerke, K., Matthäi, S. & Azizmohammadi, S. 31 Jul 2016
PEER REVIEWED POSTER

A Mathematical Approach Using Thermoporoelastic Model for Reamer While Drilling Efficiency Analysis and Closeness
Roohi, A., Nascimento, A., Elmgerbi, A., Prohaska-Marchried, M. & Thonhauser, G. Jul 2016
PEER REVIEWED ARTICLE

Kinetic Geochemical Modelling of Brine-Water Chemistry as Consequences of Hydrogen Injection
Hassannayebi, N. & Azizmohammadi, S. 26 Jun 2016
PEER REVIEWED POSTER

New Insights from Imaging Pore Scale Displacements
Berg, S., Armstrong, R., Georgiadis, A., Ott, H., Ruecker, M., Enzmann, F. & Kersten, M. 09 May 2016
PEER REVIEWED PAPER

Why quasi-static approaches cannot be used to model imbibition relative permeability
Berg, S., Armstrong, R., Georgiadis, A., Ott, H., Ruecker, M., Leu, L., Enzmann, F., Kersten, M., de With, S., Becker, J. & Wiegmann, A. 09 May 2016
PEER REVIEWED PAPER

Numerical-Simulation-Based Determination of Relative Permeability in Laminated Rocks
Sedaghat, M., Gerke, K., Azizmohammadi, S. & Matthäi, S. 20 Apr 2016
PEER REVIEWED PRESENTATION

Enhanced Wireline Core Size Retrieval By Casing Drilling Coring
Ashena, R., Prohaska-Marchried, M., Koller, C., Vortisch, W. & Thonhauser, G. Apr 2016
PAPER

Innovative Concepts For Wireline Continuous Coring Systems
Ashena, R., Thonhauser, G., Vortisch, W., Prohaska-Marchried, M. & Koller, C. Apr 2016
PAPER

An Investigation of Stuck Pipe Occurrences in Iran
Roohi, A., Thonhauser, G., Makvandi, M., Shahbazi, K., Ashena, R., Zamani, A. & Elmgerbi, A. Mar 2016
PEER REVIEWED ARTICLE

General Analytical Solution for Estimating the Elastic Deformation of an Open Borehole Wall
Elmgerbi, A., Thonhauser, G., Prohaska-Marchried, M., Roohi, A. & Nascimento, A. 11 Feb 2016
PEER REVIEWED PAPER

Connected pathway relative permeability from pore-scale imaging of imbibition
Berg, S., Ruecker, M., Ott, H., Georgiadis, A., van der Linde, H., Enzmann, F., Kersten, M., Armstrong, R., de With, S., Becker, J. & Wiegmann, A. 11 Feb 2016
PEER REVIEWED ARTICLE

Tiefe geothermische Energiegewinnung – Innovative Wege zur Optimierung
Fruhwirth, R. & Hofstätter, H. 2016
PEER REVIEWED CONFERENCE ARTICLE

Real-time kick detection by ultrasonic sensing
Kutas, D. 2016
MASTER'S THESIS

Hollow Sucker Rod Criteria and Applications
Groiß, A. 2016
MASTER'S THESIS

The Lightweight Drilling System Concept
Ivanovic, M. 2016
MASTER'S THESIS

Well design case study - Kurdistan
Sauermoser, M. 2016
MASTER'S THESIS

Sawan Gas Wells De-Liquification
Salman, K. 2016
MASTER'S THESIS

Operations optimization for natural resource projects
Mitschanek, M. 2016
DOCTORAL THESIS

Solutions for Sucker Rod Pump Systems in Sandy Conditions
Obersriebnig, J. 2016
MASTER'S THESIS

Mathematical Approach of MSE in Thermo-Poro-Elastic Conditions Improves Decision Making to Use RWD
Roohi, A., Elmgerbi, A., Nascimento, A., Prohaska-Marchried, M. & Thonhauser, G. 2016
PAPER

2015

A Study of the Applicability of Bourgoyne & Young ROP Model and Fitting Reliability through Regression
Elmgerbi, A., Thonhauser, G., Prohaska-Marchried, M., Roohi, A., Kutas, D., Nascimento, A. & Hugo Mathias, M. 09 Dec 2015
PAPER

Mathematical Modeling Applied to Drilling Engineering: An Application of Bourgoyne and Young ROP Model to a Presalt Case Study
Elmgerbi, A., Thonhauser, G., Kutas, D., Nascimento, A. & Hugo Mathias, M. 20 Aug 2015
ARTICLE

Geochemical Modelling of Hydrogen Interaction with Minerals and Aqueous Species
Azizmohammadi, S. & Hassannayebi, N. 21 May 2015
PEER REVIEWED PRESENTATION

Modelling of Wellbore Heat Transfer for Optimising Oil & Gas Production
Fruhwirth, R. & Hofstätter, H. 2015
CONFERENCE CONTRIBUTION

Modelling of Wellbore Heat Transfer for Gas Production
Fruhwirth, R., Hofstätter, H. & Schwaiger, G. 2015
CONFERENCE CONTRIBUTION

The ideal rig
Fleischhacker, M. 2015
MASTER'S THESIS

Well Delivery Capactiy based Rig Classification System
Liebenberger, M. 2015
MASTER'S THESIS

Sucker Rod Anti - Buckling System Analysis
Langbauer, C. 2015
DOCTORAL THESIS

Dynamic Drill-rate Test Approach Appplied to a Pre-salt Case Study
Roohi, A., Nascimento, A., Elmgerbi, A., Prohaska-Marchried, M., Thonhauser, G. & Hugo Mathias, M. 2015
PAPER

Application of Artificial Neural Networks in Geoscience and Petroleum Industry
Ashena, R. & Thonhauser, G. 2015
PEER REVIEWED CHAPTER

Water coning in permeable faults
Galijasevic, J. 2015
MASTER'S THESIS

2014

Design and development of a novel fuel sensor
Zillner, C. 2014
MASTER'S THESIS

Well Flow Modelling in a Gas Condensate Reservoir
Khosraviboushehri, M. 2014
MASTER'S THESIS

Assessment of an Innovative Compressor Design
Niederseer, C. 2014
MASTER'S THESIS

Statistical Study of Stuck Pipe in Different Iranian Oil and Gas Fields
Roohi, A., Makvandi, M., Thonhauser, G., Shahbazi, K. & Zamani, A. 2014
PEER REVIEWED PAPER

Rock UCS & MSE Distribution around the Wellbore
Roohi, A. 2014
PEER REVIEWED POSTER

Distributed recognition system for drilling events detection and classification
Arnaout, A., O'Leary, P., Esmael, B. & Thonhauser, G. 2014
PEER REVIEWED ARTICLE

2013

Listening Sucker Rod Pumps: Stroke's Signature
Chevelcha, E. & Langbauer, C. 22 May 2013
PAPER

Recommendation of Counteractions for Prevention of Critical Events in Sub-Surface Drilling Environments
Winter, M., Riedel, F., Lee, F., Fruhwirth, R., Kronsteiner, F., Zeiner, H. & Vallant, H. 2013
PEER REVIEWED ARTICLE

Model Based Monitoring of Wellbore Hydraulics for Abnormal Event Detection
Todorov, D., Fruhwirth, R. & Thonhauser, G. 2013
PEER REVIEWED CONFERENCE ARTICLE

Formation Prediction Model based on Drill String Vibration Measurements Using Laboratory Scale Rig
Esmaeili, A., Elahifar, B., Fruhwirth, R. & Thonhauser, G. 2013
PEER REVIEWED PAPER

Effect of Formations Compressive Strength on Drill String Vibrations
Esmaeili, A., Elahifar, B., Fruhwirth, R. & Thonhauser, G. 2013
PEER REVIEWED PAPER

Model Based Monitoring of Wellbore Hydraulics for Abnormal Event Detection
Todorov, D., Fruhwirth, R. & Thonhauser, G. 2013
PEER REVIEWED CONFERENCE ARTICLE

Formation Prediction Model based on Drill String Vibration Measurements Using Laboratory Scale Rig
Esmaeili, A., Elahifar, B., Fruhwirth, R. & Thonhauser, G. 2013
PEER REVIEWED PAPER

Effect of Formations Compressive Strength on Drill String Vibrations
Esmaeili, A., Elahifar, B., Fruhwirth, R. & Thonhauser, G. 2013
PEER REVIEWED PAPER

Mapping geo-cellular models to unstructured simulation grids
Mosser, L. 2013
CONFERENCE CONTRIBUTION

Dynamic Modeling of a Shale Gas Field Development
Mitschanek, M. 2013
MASTER'S THESIS

Impact of wettability on two-phase displacement patterns in granular media
Trojer, M., Szulczewski, M., Holtzman, R. & Juanes, R. 2013
PEER REVIEWED POSTER

Analysis of Drill String Dynamic Behavior
Esmaeili, A. 2013
DOCTORAL THESIS

Drilling Events Detection Using Hybrid Intelligent Segmentation Algorithm
Arnaout, A., Esmael, B., Fruhwirth, R. & Thonhauser, G. 2013
CONFERENCE CONTRIBUTION

Operations Recognition at Drill-Rigs
Esmael, B., Arnaout, A., Thonhauser, G. & Fruhwirth, R. 2013
CONFERENCE CONTRIBUTION

Real-Time Classification of Drilling Operations using Trend Analysis of Hookload Sensor Measurements
Arnaout, A., Esmael, B., Fruhwirth, R. & Thonhauser, G. 2013
CONFERENCE CONTRIBUTION

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
CONFERENCE CONTRIBUTION

Flow Rate- and Fracture Property Dependence of Fracture-Matrix Ensemble Relative Permeability
Matthäi, S., Lang, P. & Bazrafkan, S. 2013
PEER REVIEWED POSTER

2012

Scaling of flow loops based on the Bingham plastic model
Todorov, D., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED PAPER

Real-time data analytics of drilling sensor streams for prediction of critical situations
Zeiner, H., Jandl, B., Winter, M., Unterberger, R., Fruhwirth, R., Derler, C., Hausenblas, M. & Simperl, E. 2012
PEER REVIEWED ABSTRACT

Model Based Monitoring of Wellbore Hydraulics for Abnormal Event Detection
Todorov, D., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED PAPER

Rig Side Online Drilling Support System for Prediction and Prevention of Upcoming Crises
Jandl, B., Winter, M., Fruhwirth, R., Riedel, F. & Zeiner, H. 2012
PEER REVIEWED ABSTRACT

Accuracy of ultrasonic sensor in caliper log
Elahifar, B., Esmaeili, A., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED PAPER

Scale Dependence of Equivalent Permeability Tensor in Naturally Fractured Reservoirs
Azizmohammadi, S., Matthäi, S. & Paul, J. 2012
PEER REVIEWED POSTER

Scaling of flow loops based on the Bingham plastic model
Todorov, D., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED PAPER

Model Based Monitoring of Wellbore Hydraulics for Abnormal Event Detection
Todorov, D., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED PAPER

Accuracy of ultrasonic sensor in caliper log
Elahifar, B., Esmaeili, A., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED PAPER

Amal field artificial lift optimization
Elwefati, A. 2012
MASTER'S THESIS

Natural Gas Treatment with Ionic Liquids
Janiczek, P. 2012
DOCTORAL THESIS

Drainage Patterns of Subvertical Wells intersecting Naturally Fractured Carbonate Reservoir Layers
Bazr Afkan, S., Matthäi, S. & Milliotte, C. 2012
PEER REVIEWED POSTER

Smart UGS
Srepel, C. 2012
MASTER'S THESIS

Flow Rate- and Fracture Property Dependence of Fracture-Matrix Ensemble Relative Permeability
Matthäi, S., Lang, P. & Bazrafkan, S. 2012
PEER REVIEWED POSTER

Importance of Fracture-Matrix Transfer by Counter-Current Imbibition (CCI) in Naturally Fractured Reservoirs
Seidl, G., Lang, P., Yapparova, A. & Matthäi, S. 2012
PEER REVIEWED POSTER

The effect of wettability on capillary fracturing in granular media
Trojer, M., Szulczewski, M. & Juanes, R. 2012
PEER REVIEWED POSTER

An Energy Based Comparision of Alternative Drilling Methods
Esmaeili, A. & Elahifar, B. 2012
PEER REVIEWED POSTER

Accuracy of Ultrasonic Sensor in Caliper Log
Thonhauser, G. 2012
CONFERENCE CONTRIBUTION

Analysis of Drill String Dynamic Behavior
Esmaeili, A. 2012
PEER REVIEWED POSTER

A Modified Archie Relationship for Vuggy Carbonates
Müller-Huber, E. 2012
CONFERENCE CONTRIBUTION

A Modified Archie Relationship for Vuggy Carbonates
Müller-Huber, E. 2012
PEER REVIEWED POSTER

Hybrid Multiple Classifier System for Recognizing Usual and Unusual Drilling Events
Esmael, B., Arnaout, A., Thonhauser, G. & Fruhwirth, R. 2012
CONFERENCE CONTRIBUTION

A Statistical Feature-Based Approach for Operations Recognition in Drilling Time Series
Esmael, B., Arnaout, A., Fruhwirth, R. & Thonhauser, G. 2012
PEER REVIEWED ARTICLE

2011

Rissfortschrittsmessung mit Wechselstrommethode ACPD
Lamik, A. 15 Sep 2011
OTHER CONTRIBUTION

Importance of Counter-Current Imbibition (CCI) in Naturally Fractured Reservoirs
Seidl, G., Lang, P. & Matthäi, S. 2011
PEER REVIEWED POSTER

Automatic First Break Detection Using Support Vector Machine Classification
Yalcinoglu, L., Millahn, K. & Fruhwirth, R. 2011
PEER REVIEWED PAPER

Multiresolution Wavelet-Based Upscaling of Structured Grids
Azizmohammadi, S. & Matthäi, S. 2011
PEER REVIEWED POSTER

Importance of Counter-Current Imbibition (CCI) in Naturally Fractured Reservoirs (NFR)
Seidl, G., Lang, P. & Matthäi, S. 2011
PEER REVIEWED POSTER

A two-phase adaptive finite element method for solid-fluid coupling in complex geometries
Garcia, X., Pavlidis, D., Gorman, G., Gomes, J., Piggott, M., Mindel, J., Aristodemou, E., Latham, J., Pain, C. & ApSimon, H. 2011
PEER REVIEWED ARTICLE

Corrosion Monitoring Concept for Oil Wells
Schein, F. 2011
MASTER'S THESIS

Casing Wear Study on Gullfaks Field
Bindl, B. 2011
MASTER'S THESIS

Pressure Tests for Drillpipe Development
Wischt, J. 2011
MASTER'S THESIS

Antibuckling System in Sucker Rod Pumps
Langbauer, C. 2011
MASTER'S THESIS

An Energy Based Comparison of Alternative Drilling Methods
Thonhauser, G. 2011
CONFERENCE CONTRIBUTION

Autamated Real -time Drilling Hydraulics Monitoring
Thonhauser, G. 2011
CONFERENCE CONTRIBUTION

Automatic Threshold Tracking of Sensors Data Using Expectation Maximization Algorithm
Arnaout, A., Esmael, B., Thonhauser, G. & Fruhwirth, R. 2011
CONFERENCE CONTRIBUTION

Automated System for Drilling Operations Classification Using Statistical Features
Esmael, B., Arnaout, A., Thonhauser, G. & Fruhwirth, R. 2011
CONFERENCE CONTRIBUTION

An Energy Based Comparison of Laser Drilling Methods
Thonhauser, G. 2011
CONFERENCE CONTRIBUTION

Ganglion migration of CO2 in porous media
Trojer, M. & Matthäi, S. 2011
PEER REVIEWED POSTER

2010

Abnormal Oil Well Drilling Operations Detection Using Smallest Principal Components
Arnaout, A., Esmael, B., Fruhwirth, R. & Thonhauser, G. 2010
PEER REVIEWED PAPER

The Impact of Hierarchival Fracture Netwoeks on Flow Partitioning in Carbonate Reservoirs: Examples Based on a Jurassic Carbonate Ramp analog from the High Atlas, Moroco
Matthäi, S., Agar, S., Geiger, S., Alway, R., Tomas, S., Immenhauser, A., Shekhar, R., Paul, J., Benson, G., Karcz, Z. & Kabiri, L. 2010
CONFERENCE CONTRIBUTION

Automated Operations Classification using Text Mining Techniques
Esmael, B., Arnaout, A., Fruhwirth, R. & Thonhauser, G. 2010
PEER REVIEWED PAPER

Abnormal Oil Well Drilling Operations Detection Using Smallest Principal Components
Arnaout, A., Esmael, B., Fruhwirth, R. & Thonhauser, G. 2010
PEER REVIEWED PAPER

Drilling Cost Analysis and Prognosis
Baumgartner, T. 2010
MASTER'S THESIS

Architektur des Trattnach Ölfeldes (Molassebecken)
Groß, D., Schnitzer, S., Sachsenhofer, R., Matthäi, S., Hablous, A., Troiss, W. & Bieg, U. 2010
PEER REVIEWED POSTER

Prototype Evaluation of a Casing Drilling System
Trombitas, M. 2010
MASTER'S THESIS

Architektur des Trattnach Ölfeldes (Molassebecken)
Groß, D., Schnitzer, S., Sachsenhofer, R., Matthäi, S., Hablous, A., Troiss, W. & Bieg, U. 2010
CONFERENCE CONTRIBUTION

Automated Drilling The Well on Paper
Veit, S. 2010
MASTER'S THESIS

Drilling Hydraulics Monitoring and Problem Detection
Lüftenegger, M. 2010
MASTER'S THESIS

Cost Effective and Environmental Friendly Drilling
Hilzensauer, P. 2010
MASTER'S THESIS

Behaviour and Shape of Gas Kicks in Wellbores
Tuschl, T. 2010
MASTER'S THESIS

ESP production optimization
Posch, T. 2010
MASTER'S THESIS

Energy efficiency in underground gas storage facilities
Stockhammer, A. 2010
MASTER'S THESIS

Optimization of well Start-up
Six, J. 2010
MASTER'S THESIS

Implementation of Automated Torque -and Drag Monitoring for Maari Field Developement
Thonhauser, G., Niedermayr, M., Zöllner, P., Pearse, J. & Banks, M. 2010
CONFERENCE CONTRIBUTION

The Drilling Champion
Thonhauser, G. 2010
CONFERENCE CONTRIBUTION

Operations Classification Using Text Mining Techniques
Thonhauser, G. & Esmael, B. 2010
CONFERENCE CONTRIBUTION

Automated Operations Classification using Text Mining Techniques
Esmael, B., Arnaout, A., Fruhwirth, R. & Thonhauser, G. 2010
PEER REVIEWED PAPER

2009

Coupled FEMDEM/Fluids for coastal engineers with special reference to armour stability and breakage
Latham, J., Mindel, J., Xiang, J., Guises, R., Garcia, X., Pain, C., Gorman, G. & Munjiza, A. 2009
PEER REVIEWED ARTICLE

Upscaling two-phase flow in naturally fractured reservoirs
Matthäi, S. & Nick, H. 2009
PEER REVIEWED ARTICLE

Development of a modelling approach for large granular media used in coastal applications
Latham, J., Mindel, J., Xiang, J., Garcia, X., Pain, C., Gorman, G. & Munjiza, A. 2009
CONFERENCE CONTRIBUTION

Black-Oil Simulations for Three-Component, Three-Phase Flow in Fractured Porous Media
Geiger, S., Matthäi, S., Niessner, J. & Helmig, R. 2009
PEER REVIEWED ARTICLE

Comparison of deterministic with stochastic fracture models in water-flooding numerical simulations
Belayneh, M., Matthäi, S., Blunt, M. & Rogers, S. 2009
PEER REVIEWED ARTICLE

Towards a numerical wave simulator using the two-fluid interface tracking approach combined with a novel ALE scheme
Mindel, J., Collins, G., Latham, J., Pain, C. & Munjiza, A. 2009
CONFERENCE CONTRIBUTION

Coupled DEM and CFD for coastal structures: application to armour stability and breakage
Latham, J., Mindel, J., Guises, R., Garcia, X., Xiang, J., Pain, C. & Munjiza, A. 2009
CONFERENCE CONTRIBUTION

A COUPLED FLUIDS-PARTICULATES MODEL FOR WAVES INTERACTING WITH GRANULAR MEDIA USING FEM AND DEM
Xiang, J., Mindel, J., Munjiza, A., Latham, J., Guises, R., Garcia, X. & Pain, C. 2009
CONFERENCE CONTRIBUTION

Applications of the combined finite-discrete element method
Xiang, J., Latham, J., Munjiza, A. & Mindel, J. 2009
CONFERENCE CONTRIBUTION

Massively Parallel Sector Scale Discrete Fracture and Matrix
Geiger, S., Huangfu, Q., Reid, F., Matthäi, S., Coumou, D., Belayneh, M., Fricke, C. & Schmid, K. 2009
CONFERENCE CONTRIBUTION

Numerical study of the effects of particle shape and polydispersity on permeability
Garcia, X., Akanji, L., Blunt, M., Matthäi, S. & Latham, J. 2009
PEER REVIEWED ARTICLE

Towards simulation of concrete armour unit breakage under wave loads using coupled DEM, FEM/DEM and CFD
Latham, J., Munjiza, A., Mindel, J., Xiang, J., Guises, R., Pain, C. & Gorman, G. 2009
CONFERENCE CONTRIBUTION

Erosional decay of the Yucca Mountain crest, Nevada
Matthäi, S., Stüwe, K. & Robl, J. 2009
PEER REVIEWED ARTICLE

Optimization of well start-up
Schietz, M. 2009
MASTER'S THESIS

Evaluation of Dynamic Loads Running Tubulars in Wells
Mühlböck, M. 2009
MASTER'S THESIS

Drilling in Extreme Conditions
Thonhauser, G. 2009
CONFERENCE CONTRIBUTION

Optimization of inflow performance for underground gas storage
Gubik, A. 2009
PEER REVIEWED DIPLOMA THESIS

Simulation of a polymer core-flood experiment
Shaymardanov, M. 2009
MASTER'S THESIS

2008

Multiphase Simulations of a Lyocell Process
Bouwman, M. 2008
DOCTORAL THESIS

Evaluation of acid stimulations
Janiczek, P. 2008
MASTER'S THESIS

Aerosols in gas transporting systems
Huber, S. 2008
MASTER'S THESIS

An Analysis of Noise Characterstics on Drill Bits
Thonhauser, G. 2008
CONFERENCE CONTRIBUTION

A Virtual PVT Cell
Brunneder, M. 2008
MASTER'S THESIS

Automated Real Time Hookload and Torque Monitoring
Thonhauser, G. 2008
CONFERENCE CONTRIBUTION

Modelling of massive particulates for breakwater engineering using coupled FEMDEM and CFD
Latham, J., Munjiza, A., Mindel, J., Xiang, J., Guises, R., Garcia, X., Pain, C., Gorman, G. & Piggott, M. 2008
PEER REVIEWED ARTICLE

2007

Computational Intelligence - Neural Computation in a Copper Refinery
Fruhwirth, R., Filzwieser, A., Pesl, J. & Steinlechner, S. 2007
PEER REVIEWED PAPER

Black-Oil Simulations for Three-Component, Three-Phase Flow in Fractured Porous Media
Geiger, S., Matthäi, S., Niessner, J. & Helmig, R. 2007
CONFERENCE CONTRIBUTION

Drillpipe Failure and its Prediction
Stelzer, C. 2007
MASTER'S THESIS

Analyse der Erhöhung von Bruttoraten
Tippel, P. 2007
MASTER'S THESIS

Modeling the Drilling Process
Koberg, U. 2007
MASTER'S THESIS

Evaluation and Optimisation of Matrix Acidizing in OMV Fields
Rodriguez Chavez, M. 2007
MASTER'S THESIS

The Reservoir Behavior of Associative Polymers
Aktas, F. 2007
MASTER'S THESIS

Streaming current generation in two-phase flow conditions
Matthäi, S., Linde, N., Jougnot, D. & Revil, A. 2007
PEER REVIEWED ARTICLE

2006

Neural Modelling of Core Permeability Data
Fruhwirth, R. & Maier, G. 2006
PEER REVIEWED PAPER

Prediction of vein connectivity using the percolation approach: model test with field data
Matthäi, S., Belayneh, M. & Masihi, M. 2006
PEER REVIEWED ARTICLE

Thermodynamik der Wasserstoffspeicherung
Kindermann, H. 2006
DIPLOMA THESIS

Acoustic Analysis of Bit Noise
Gradl, C. 2006
MASTER'S THESIS

Numerical simulation of water injection into layered fractured carbonate reservoir analogs
Matthäi, S., Belayneh, M. & Geiger, S. 2006
PEER REVIEWED ARTICLE

Automation of Brownfield Development Workflows
Al-Kinani, A. 2006
MASTER'S THESIS

Simulation of heat transfer in transfer-gears
Mataln, M. 2006
DIPLOMA THESIS

Flow Based Determination of Hydraulic Units
Schatz, B. 2006
DOCTORAL THESIS

Characterization of Fractured Carbonate Reservoirs
Pfeiffer, P. 2006
MASTER'S THESIS

2005

Well Abandonment Assessment of the North Sea
Schickengruber, P. 2005
DIPLOMA THESIS

Coupled heat and salt transport around cooling magmatic intrusions
Matthäi, S., Geiger, S., Driesner, T. & Heinrich, C. 2005
PEER REVIEWED ARTICLE

A high-order TVD transport method for hybrid meshes on complex geological geometry
Matthäi, S., Mezentsev, A. & Pain, C. 2005
PEER REVIEWED ARTICLE

Xanthan Gum Evaluation
Piber, M. 2005
DIPLOMA THESIS

Neural Modeling of Shear Wave Sonic Logs
Fruhwirth, R. & Steinlechner, S. 2005
PEER REVIEWED PAPER

2003

Einblicke in den Untergrund
Fruhwirth, R., Fuchs, G. & Morawetz, R. 2003
CHAPTER

2001

Ergebnisse der tiefenreflexionsseismischen Lithosphärenforschung in Österreich
Fruhwirth, R., Grassl, H., Millahn, K., Schmid, C., Schmöller, R. & Weber, F. 2001
CHAPTER

Survey for Ancient Foundation Remains by Enhanced C-Scan Processing of GPR Data
Fruhwirth, R., Fuchs, G. & Morawetz, R. 2001
PEER REVIEWED PAPER

2000

Radarmessungen im Benediktinerstift Admont
Fruhwirth, R., Fuchs, G. & Morawetz, R. 2000
CHAPTER

Radarmessungen im Benediktinerstift Admont
Fruhwirth, R., Fuchs, G. & Morawetz, R. 2000
PEER REVIEWED ARTICLE

Bodenradarmessung im antiken Stadtgebiet von Flavia Solva
Fruhwirth, R., Fuchs, G. & Morawetz, R. 2000
PEER REVIEWED ARTICLE

1994

Small scale reflection seismic surveys in the Alpine Region of Austria
Schmöller, R., Fruhwirth, R. & Kogler, A. 1994
PEER REVIEWED PAPER

Resampling in frequency domain, a method for interpolation of time series
Fruhwirth, R., Müller, R. & Schmöller, R. 1994
PEER REVIEWED PAPER

Application of ground penetrating radar to geotechnical problems
Fruhwirth, R. & Müller, R. 1994
PEER REVIEWED PAPER

Computerized refraction seismic analysis (RSA) and its application to static correction calculation
Fruhwirth, R., Kogler, A. & Schmöller, R. 1994
PEER REVIEWED PAPER

Major natural gas pipeline projects in Germany using GPR
Czarnowski, J., Heinze, S., Brühl, P., Staib, C., Robeck, M., Frank, G. & Fruhwirth, R. 1994
PEER REVIEWED PAPER

1993

Ergebnisse reflexionsseismischer Messungen im Nordteil des Weststeirischen Tertiärbeckens
Weber, F., Schmöller, R., Fruhwirth, R. & Hartmann, G. 1993
CHAPTER

1992

ARAGUAINHA IMPACT CRATER, BRAZIL .1. THE INTERIOR PART OF THE UPLIFT
Matthäi, S., Von Engelhardt, W. & Walzebuck, J. 1992
PEER REVIEWED ARTICLE

1990

Geschwindigkeits und Schichtneigungsanalysen aus tiefenseismischen Fernaufnahmen
Schmöller, R., Fruhwirth, R. & Walach, G. 1990
PEER REVIEWED ABSTRACT

1987

Error Analysis Of Directional Survey Calculation Models
Fruhwirth, R. & Lorbach, M. 1987
CONFERENCE CONTRIBUTION

Error Analysis Of Directional Survey Calculation Models
Fruhwirth, R. & Lorbach, M. 1987
CONFERENCE CONTRIBUTION

1986

Problematik der Genauigkeit und des Aufwandes von Bohrlochverlaufsvermessungen
Lorbach, M. & Fruhwirth, R. 1986
PEER REVIEWED ARTICLE

Problematik der Genauigkeit und des Aufwandes von Bohrlochverlaufsvermessungen
Lorbach, M. & Fruhwirth, R. 1986
PEER REVIEWED ARTICLE