1. Patrick J. Teevens, Sridhar Arumugam, “Successful Application of Internal Corrosion Direct Assessment (ICDA) To Determine the Integrity of an Indian Offshore SPM Pipeline”, NACE Corrosion Conference & Expo, Phoenix AZ, April 13 – 19 2018
  2. Patrick J. Teevens, “The Essentials Role of Internal Corrosion Direct Assessment (ICDA) and It’s IMPACT on Corrosion Economics of Pipelines In a Depressed Oil Pricing Climate”, NACE International Calgary Section, April 7, 2016
  3. Damon Brown, Shawna Johnston, Patrick J. Teevens, Raymond Turner, “Relationship Between Planktonic and Sessile Cells as They Relate to Biofilm Growth”, NACE International Corrosion 2016, Vancouver, BC, March 2016
  4. Sridhar Arumugam, Patrick J. Teevens, “Significance of Solids, Produced Water and Advanced Microbial Field and Laboratory Analysis in Determining the Risk of Internal Corrosion in Multiphase Petroleum Pipelines – A Case Study”, NACE CORCON, Chennai, India, November 2015
  5. Carlos Melo Gonzalez, Patrick J. Teevens, “MP-ICDA Analysis on Block 12 and Block 15 Gathering Pipelines and Petroamazonas EP in Ecuador”, NACE PIMS Latin America, Quito, Ecuador, July 2015
  6. Troy Eggum, Nima Tajallipour, Sridhar Arumugam, Patrick J. Teevens, “Comprehensive Approach to Oxygen Corrosion Analysis of Water Injection Systems”, NACE International, Dallas, TX, March 2015
  7. Sridhar Arumugam, Nima Tajallipour, Troy Eggum, Patrick J. Teevens, “Application of a Thermodynamic Model to Predict the Solubility of CO₂ in Pure H₂O and in Salt Solutions and Corrosion Prediction of Carbon Steel Under Supercritical Conditions”, NACE International, Dallas, TX, March 2015
  8. Nima Tajallipour, Henk Chin A. Lien, Patrick J. Teevens, Amresh Mohan, “Multiphase Flow Internal Corrosion Direct Assessment for the Tambaredjo North West (TNW) Pipeline”, NACE International, Dallas, TX, March 2015
  9. Patrick J. Teevens and Nima Tajallipour, “Petroleum Pipeline Integrity Under The Public Microscope: The Essential Role of Internal Corrosion Direct Assessment (ICDA)”, ACA (Australian Corrosion Association) Corrosion and Prevention 2014 Plenary Lecture, Darwin, Australia, September 2014
  10. Sridhar Arumugam, Nima Tajallipour, Patrick J. Teevens, “Modeling the Nucleation and Growth of Corrosion Scales in Sour Petroleum Pipelines”, NACE International, San Antonio, TX, March 2014
  11. Nima Tajallipour, Patrick J. Teevens, Wale Akanni, Sridhar Arumugam, “Application of Internal Corrosion Predictive Modeling (ICPM) In Pipeline Integrity Risk Management of Oil and Gas Production Fields”, NACE International, San Antonio, TX, March 2014
  12. Sridhar Arumugam, Nima Tajallipour, Patrick J. Teevens, “Modeling the Influence of Iron Carbonate Scale Morphology in Sweet Corrosion Prediction”, NACE International, San Antonio, TX, March 2014
  13. Nima Tajallipour, Patrick J. Teevens, Tatiana Alves da Silva, Ivan Jose Dos Santos “Modeling of Solids Transport and Deposition for an Iron-Ore Slurry Pipeline using enpICDA TM”, 17th International Seminar on Paste and Thickened Tailings (Paste 2014), June 9-12, 2014, Vancouver, BC, Canada
  14. Zhenjin Zhu, Patrick J. Teevens, Tesfaalem Haile, Nima Tajallipour, “Dynamic Pitting Analysis in Liquid and Wet Gas Petroleum Pipelines”, NACE International, Orlando, FL, March 2013
  15. Nima Tajallipour, Patrick J. Teevens, Aymen Rashid, Tesfaalem Haile, Sridhar Arumugam, “Pipeline Risk Assessment for the Purpose of Internal Corrosion Direct Assessment (ICDA) in a Large Gas Gathering, Transmission, and Distribution System”, NACE International, Orlando, FL, March 2013
  16. Patrick J. Teevens, Zhenjin Zhu, “Internal Corrosion Direct Assessment of a High-Pressure Wet-Gas Pipeline using NACE SP0110”, NACE International, Orlando, FL, March 2013
  17. Tesfaalem Haile, Patrick Teevens, Zhenjin Zhu, Sina Fardisi, Nima Tajallipour, “The Application of XDLVO Theory in Modeling Sulfate Reducing Bacteria (SRB) Adhesion on Collector Surfaces: Insight into the Initial Events of Biofilm Adhesion”, NACE International, Orlando, FL, March 2013
  18. Reza Khaksarfard, Nima Tajallipour, Marius Paraschivoiu, Patrick J. Teevens, “CFD Based Analysis of Multiphase Flows in Bends of Large Diameter Pipelines”, NACE International, Orlando, FL, March 2013
  19. Patrick Teevens, Ashish Khera, Zhenjin Zhu, “Internal Corrosion Direct Assessment for Hydrocarbon Service Petroleum Pipelines”, ASME India Oil & Gas Pipeline Conference 2013, Jaipur, India, February 2013
  20. Tesfaalem Haile, Pat Teevens, Zhenjin Zhu, Nima Tajallipour, “Modeling the Initial Events of Biofilm Formation: The Attachment of Sulfate-reducing Bacteria in Pipelines”, NACE Northern Area Western Conference, Victoria, BC, February 2013
  21. Tesfaalem Haile, Zhenjin Zhu, Sina Fardisi, Patrick Teevens, Nima Tajallipour, “Modeling of Deposition and Attachment of Sulfate Reducing Bacteria (SRB) in a Liquid Petroleum Pipeline”, NACE East Asia & Pacific Rim Area Conference, Shanghai, China, October 2012
  22. Patrick Teevens, Ashish Khera, “Proactive Pipeline Integrity Management: Safety, Reliability and Economic Benefits Realized at an Indian Producing Offshore and Onshore Asset”, NACE International CORCON Conference, Goa, India, September 2012
  23. Pat Teevens, A.W.Al-Mithin, S. Safri, Ashish Khera, Zhenjin Zhu, “Two Contrasting Internal Corrosion Scenarios Assessed by Liquid Petroleum: Internal Corrosion Direct Assessment (LP-ICDA) for the Innovation Development of a Dynamic Pitting Factor”, International Pipeline Conference, Calgary, AB, September 2012
  24. Pat Teevens, Zhenjin Zhu, “Internal Corrosion Direct Assessment of a 12” Nominal Wet Gas Pipeline”, NACE Central Area Conference, Lombard, IL, August 2012
  25. Wahab Al-Mithin, A., Safri, S., Prakash, S., Teevens, P.J., Zhu, Z., Khera, A., “Liquid Petroleum – Internal Corrosion Direct Assessment (LP-ICDA) of a ‘Piggable’ Crude Oil Pipeline in Kuwait Oil Company Using NACE International Standard Practice SP0208-2008”, NACE International, March 2012
  26. Zhu, Z., Tajallipour, N., Fardisi, S., Teevens, P.J., “Interaction Between Two Pre-existed Micro-Pits on Pitting Propagation and Passivation”, NACE International, March 2012
  27. Tajallipour, N., Zhu, Z., Teevens, P.J., Place, T., “Modeling of Solids Deposition in a 36”- 48” Diameter Heavy-Oil Transmission Pipeline,” NACE International, March 2012
  28. Fardisi, S., Tajallipour, N., Teevens, P.J., “Effects of Different Design Parameters on the Uniform Corrosion in the Annulus of Flexible Pipes”, NACE International, March 2012
  29. Fardisi, S., Tajallipour, N., Teevens, P.J., “Mechanistic Simulation of Sour Corrosion in Oil and Gas Pipeline Using a Novel Scale Growth Model”, NACE International, March 2012
  30. Wahab Al-Mithin, A., Shabbir, S., Abdul, S., Teevens, P.J., Zhu, Z., Khera, A., “Liquid Petroleum – Internal Corrosion Direct Assessment (LP-ICDA) of Three ‘Non-Piggable Gravity’ Crude Oil Export Pipelines in Kuwait Oil Company using SP0208-2008”, 14th Mid East Corrosion Conference, Bahrain, February 2012
  31. Zhu, Z., Teevens, P.J., “Determination of maintenance pigging interval for a diluted bitumen pipeline”, NACE Shanghai Conference, Shanghai, China, October 2011
  32. Fardisi, S., Tajallipour, N., Teevens, P.J., “Predicting the General Corrosion Rates of the Armor Steel Layers in the Annulus Space of the Flexible Pipelines”, NACE Shanghai, October 2011
  33. Teevens, P.J., Avann, T., Khera, A., “Offshore Real-Time Corrosion Monitoring Strategies – Getting it Right the First Time”, Corcon Corrosion Conference & Expo, Mumbai, India, September 28th – October 1st, 2011
  34. Tajallipour, N., Zhu, Z., Teevens, P.J., Place, T., Modeling of solids deposition with a heavy crude oil pipeline using enpICDATM-SRC”, World Petroleum Congress, Rio de Janeiro, Brazil, September 2011
  35. Mohammadi, F., Eliyan, F., Zhu, Z., Teevens, P.J., Alfantazi, A., “Internal corrosion of stabilized crude oil API-X100 steel pipelines”, World Petroleum Congress, Rio de Janeiro, Brazil, September 2011
  36. Zhu, Z., Tajallipour, N., Teevens, P., Crissup, J. T., “Corrosion Assessment in a Supercritical Sweet Shale-gas Wellhead”, NACE International Northern Area Western Conference, Regina, SK, February 6-8, 2011
  37. Tajallipour, N., Zhu, Z., Teevens, P., “3D Numerical Simulation of Formation Sand and Corrosion Product Deposition in a Liquid Petroleum Pipeline”, NACE International Northern Area Western Conference, Regina, SK, February 6th-8th, 2011
  38. Zhu, Z., Tajallipour, N., Teevens, P., Cheng, F. Y. F., Xue, H., “A Mechanistic Model for Predicting Localized Pitting Corrosion in a Brine Water-CO2 System”, NACE International Corrosion 2011 Annual Conference, Houston, TX, March 13th – 17th, 2011
  39. Zhu, Z., Tajallipour, N., Teevens, P., Lepková, K., Gubner, R., “Modeling of Elemental Sulphur Deposition in Sour-Gas Petroleum Pipelines”, NACE International Corrosion 2011 Annual Conference, Houston, TX, March 13th – 17th, 2011
  40. Tajallipour, N., Zhu, Z., Teevens, P., “The Effect of Slug Liquid Front on Inhibitor Effectiveness in High Pressure, High Temperature, Sour Petroleum Pipelines”, NACE International Corrosion 2011 Annual Conference, Houston, TX, March 13th – 17th, 2011
  41. Xue, H., Cheng, F.Y.F., Zhu, Z., Tajallipour, N., Teevens, P.J., “Internal Pitting Corrosion of X80 Pipeline Steel under Deposited Sand Bed in CO2-Saturated Chloride Solutions”, NACE International Corrosion 2011 Annual Conference, Houston, TX, March 13th – 17th, 2011
  42. Zhu, Zhenjin, Sand, Keith W., and Teevens, Patrick J., “Effects of Flow Regime on Solids Deposition in Multiphase Petroleum Flow”, NACE International, Corrosion 2010 Annual Conference, San Antonio, Texas, March 13 – 18th, 2010
  43. Zhu, Zhenjin, Sand, Keith W., and Teevens, Patrick J., “A Numerical Study of Under-deposition Pitting Corrosion in Sour Petroleum Pipelines”, NACE Northern Area Western Conference, Calgary, Alberta, Canada, February 15-18th, 2010
  44. Zhu, Zhenjin, Sand, Keith W., and Teevens, Patrick J., “Solids Deposition in Liquids Petroleum (Oil) and Wet-gas Pipelines for Internal Corrosion Predictive Modeling (ICPM)”, NACE Northern Area Western Conference, Calgary, Alberta, Canada, February 15-18th, 2010
  45. Teevens, Patrick J., Sand, Keith, W. and Girard, P.J., “Prediction of ‘Classic’ and ‘Flow-Induced’ Internal Pipeline Top-of-the-Line Corrosion (TLC) Mechanisms using enpICDA™: Model Prediction Confirmation and Applicability in Wet Gas Condensate Pipeline Operations”, presented to the Australasian Corrosion Association (ACA), Paper No. 022, Corrosion and Prevention 2009, 54th Annual Conference, Coffs Harbour, New South Wales, Australia, November 15th – 18th, 2009
  46.  Zhu, Zhenjin, Sand, Keith W., and Teevens, Patrick J., “Studies of Solids Deposition and Under-deposit Pitting Corrosion in Liquids Petroleum Pipelines”, presented to the Australasian Corrosion Association (ACA), Paper No. 021, Corrosion and Prevention 2009, 54th Annual Conference, Coffs Harbour, New South Wales, Australia, November 15th – 18th, 2009
  47. Teevens, Patrick J., and Sand, Keith, W., “Practical Applications of Internal Corrosion Predictive Modeling (ICPM) in 2 or 3 – Phase  Petroleum Pipelines using enpICDA™: Model Validation”, presented to NACE International, Corrosion 2008 Annual Conference, Paper No. 08642 at New Orleans, Louisiana, March 16 – 20th, 2008
  48. Teevens, Patrick J., and Sand, Keith, W., “Practical Applications of Internal Corrosion Predictive Modeling (ICPM) in 2 or 3 – Phase  Petroleum Pipelines using enpICDA™: Model Validation”, presented to the Australasian Corrosion Association (ACA), Paper No. 013, Corrosion and Prevention 2007, 52nd Annual Conference, Sydney, New South Wales, Australia, November 25th – 28th, 2007
  49. Teevens, Patrick J., Robertson, Don, W. and Sand, Keith, W. “A Comparative Gap Analysis of Pipeline Integrity Management (PIM) between Canadian and US Regulatory Regime”, presented to the Canadian Institute’s, Pipeline Integrity Management Conference, Calgary, Alberta, March 8th & 9th, 2007
  50. Teevens, Patrick J., “Economic Basket-Cases – Responsibly Managing Aging and Corroding Pipelines and Tubulars: Minimizing Losses by Fine-Tuning your Strategy”, presented to the Canadian Institute’s, Well and Pipeline Abandonment, Suspension and Discontinuation Conference, Calgary, Alberta, May 30th and 31st, 2006
  51. Deng, Chuntao, Sand, Keith and Teevens, Patrick J., “A Web-Based Software for Prediction of the Internal Corrosion of Sweet and Sour Multiphase Pipelines”, NACE International, Corrosion 2006 Annual Conference, Paper No. 06565 at San Diego, California, March 12 – 16th, 2006
  52. Teevens, Patrick J., “Advances in Electronic Corrosion Monitoring and Surveillance: The State of the Art – 2006” presented at the NACE International, Northern Area Western Conference, Calgary, Alberta, February 6th – 9th, 2006
  53. Teevens, Patrick J., “Sour Pipeline Production Operations: 27 Years of Failure-Free Engineering Strategies for the Detection, Mitigation and Prevention of Internal Pipeline Corrosion”, presented at the Australasian Corrosion Association (ACA), Corrosion and Prevention 2005 Golden Jubilee Conference, Gold Coast, Queensland, Australia November 20 – 23rd, 2005
  54. Sand, Keith, Deng, Chuntao, Teevens, Pat, Robertson, Don, Smyth., Tricia, “Corrosion Engineering Assessments Via a Predictive Tool”, paper no. 06T114 presented at the Tri-Service Corrosion Conference (ACA), sponsored by the United States Department of Defense (DoD) Corrosion Policy and Oversight Office, OUSD & AT&L and NACE International, Orlando, Florida, November 14th – 18th, 2005
  55. Teevens, Patrick J., “Sour Pipeline Production Operations: 27 Years of Failure-Free Engineering Strategies for the Detection, Mitigation and Prevention of Internal Corrosion”, NACE International, Corrosion 2005 Annual Conference, Paper No. 05647 at Houston, Texas, April 3 – 7, 2005
  56. Teevens, Patrick J., and Sand, Keith, W. “enpICDA TM: Momentum, Heat and Mass Transport Interdependency of Multiphase Fluids for Reliable Pipeline Internal Corrosion Rate Prediction”, to be presented at the NACE International, Calgary Section One Day Seminar, Calgary, Alberta, May 20th, 2004
  57. Teevens, Patrick J., “The New Corrosion Engineer: Your Professionalism, The Public Safety and a Management Structure Indifferent to a Higher Calling”, presented at the Australasian Corrosion Association (ACA), Corrosion and Prevention 2001 Conference, Newcastle, New South Wales, Australia November 19 – 22, 2001
  58. Teevens, Patrick J., “Defeating Internal Corrosion of Petroleum Pipelines in Remote Locations: Winning Strategies Integrating Real-Time Electrochemical Noise Corrosion Surveillance with Recent Advancements in Power and Communications Technologies”, presented at the Australasian Corrosion Association (ACA), Corrosion and Prevention 2000 Conference, Auckland, New Zealand, November 19 – 22, 2000
  59. Teevens, Patrick J. and Foley, Roy F., “Converting Sweet Facilities to Sour: A Corrosion Engineering Perspective”, presented at the Third Annual Pressure Equipment Industry Conference, Banff, Alberta, Canada, February 3- 5, 1999
  60. Teevens, Patrick J., “Electrochemical Noise – A Potent Weapon in the Battle Against Sour Gas Plant Corrosion: Over Three Years Operating and Turnaround Inspection Experience in Two Canadian Gas Plants”, presented at the Australasian Corrosion Association (ACA), Corrosion and Prevention 1998 Conference, Hobart, Tasmania, Australia, November 22 – 25, 1998 and at NACE Internationals’, Corrosion ’98 Annual Conference at San Diego, California, March, 1998
  61. Teevens, Patrick J., “Integrity Asset Management Through Electrochemical Corrosion Surveillance”, NACE International, Corrosion ’98 Annual Conference, Paper No. 388 at San Diego, California, March 16th – 20th, 1998
  62. Teevens, Patrick J., “Attainable and Reliable Pressure Equipment Life Extension via Advanced, Real-Time, Electrochemical Corrosion Surveillance Methods: An Update Including Vibration Monitoring“, presented at the Australasian Corrosion Association (ACA), Corrosion and Prevention 1997 Conference, Brisbane, Queensland, Australia, November 9 -12, 1997 and at MAINTEC ’97, London, England, September, 1997
  63. Teevens, Patrick J., “Attainable and Reliable Pressure Equipment Life Extension via Advanced, Real-Time, Electrochemical Corrosion Surveillance Methods”, presented at NACE International Canadian Region Western Conference, Edmonton, Alberta, February 3-6, 1997
  64. Teevens, Patrick J., “Pressure Equipment Life Extension Through Advanced Corrosion Surveillance Methods”, presented at the 19th Maintenance Management Show, MAINTEC’96, Birmingham, England, March 26-28, 1996
  65. Teevens, Patrick J., and Brown, Lonnie C., “The Evaluation and Selection of Corrosion Inhibitors for Sour Production Operations”, presented at the 33rd Annual Conference of Metallurgists, Edmonton, Alberta, August 23, 1992 CIM, Montreal, Quebec
  66. Teevens, Patrick J., and Brown, Lonnie, C., “Caustic Stress Corrosion Cracking of Waste Heat Sulphur Boilers and Their Repair”, presented to the Canadian Region Western Conference, Edmonton, Alberta , February 21, 1992@ NACE, Houston, Texas
  67. Teevens, Patrick J., “Toward a Better Understanding of the Cracking Behaviour of Carbon Steels in Alkanolamine Gas Sweetening Units, Its Detection, Monitoring and How to Avoid It”, paper no. 198, presented at Corrosion ’90, Las Vegas, Nevada, April 23 – 27, 1990, © NACE, Houston, Texas
  68. Asperger, R.G., Teevens, P.J., Ho-Chung-Qui. D., “Corrosion Control and Monitoring in Gas Pipelines and Well Systems”, ©NACE, Houston, Texas, 1989 Book
  69. Teevens, Patrick J., “Corrosion Control Considerations for the Production of Very (Super Sour Gas Wells (H2S > 60 mol%)”, paper no. 47, presented at Corrosion ’87, San Francisco, California, March 9 13, 1987, © NACE, Houston, Texas
  70.  Teevens, Patrick J., “Predicting Well Casing Corrosion Using the PC”, presented at the Calgary Section of NACE, Calgary, Alberta, April 1986
  71.  Teevens, Patrick J., “Rainbow Lake Cathodic Protection Systems”, presented at the Canadian Region Western Conference, Edmonton, Alberta, February 1984 ©NACE, Houston, Texas 
  72. enpICDATM:   A technically advanced and superior new internal corrosion prediction model replacing a predecessor programme, PIPECORR©. This multiphase mass-transport based model addresses sour gas, natural gas and multiphase pipeline systems for internal corrosion prediction model employing fluid hydrodynamic and mass transfer equations of state to empirically determine corrosion of carbon-steels 
  73. PIPECORR©   The original multiphase pipeline internal corrosion prediction model, – jointly owned by Pat Teevens and Amerada Hess Canada Ltd. (50% ownership each) (now Petro Canada Petroleum Resources), 1992. This model has been discontinued and is significantly less advanced as the new enpICDA TM 
  74.  CASCORR© External downhole well casing corrosion prediction model, owned by Pat Teevens (100% ownership), 1985