Meet the Experts

Our pool of subject matter experts covers a wide range of subjects within well construction, well servicing, production and abandonment. Read about what motivates them and what they are really good at.

Name: Dan Gibson
No. of years of oil field experience: Dan Gibson has 35 years of professional experience as a Senior Well Integrity, Petroleum, and Completion Engineer. Dan is a Subject Matter Expert in complex well integrity issues and completion designs. He was an expert witness in the Macondo federal trial. He was Wells Technical Authority providing technical support and management advice to help the Operator manage an aging well population. He helped write/re-write much of the Operator's Well Life Cycle Management System and is quite familiar with the concepts and systems for these documents. Dan retired from a Major where he was involved in all aspects of Drilling, Completion, and Production operations. He has worked and lived in 6 countries on 4 continents from onshore tight gas to offshore high value wells. He has authored or co-authored 6 papers on a variety of subjects. He is an SPE Distinguished Lecturer for 2016/17.
Flow Assurance
Name: Dr. Walt Lamb, Ph. D.
Education: Doctorate in Physical Chemistry, University of Illinois, 1981.
No. of years of oil field experience: Prior to joining Add Energy, 34 years of international industry experience with Exxon and BP, working primarily as a petroleum engineer, and later as an engineering advisor and operations manager.
What motivates me? Applying specialist knowledge, skills, experience, know-how, and new/evolving technologies, to assist clients in the delivery of safe and cost-effective engineering best practices.
What I am really good at? My flow-assurance expertise includes: formation damage diagnosis, well stimulation (matrix acidizing and fracturing), treating fluid diversion, control and management of mineral scales and asphaltenes/paraffins, water & gas shut-off, production logging, and laboratory methods and testing. I strive to work with clients to help guide engineering decisions and operations, based on sound and thorough technical analyses, state-of-the art lab testing, and proven/practical implementation alternatives.
Papers published:
  • U.S. Patent #5,890,536, “Method for Stimulation of Lenticular Natural Gas Formations”, D. E. Nierode and W. J. Lamb, 1999.
  • U.S. Patent #5,708,203, “Neutron Logging Method for Quantitative Wellbore Fluid Analysis”, R. M. McKinley and W. J. Lamb, 1998.
  • U.S. Patent #5,309,995, “Well Treatment Using Ball Sealers”, M. E. Gonzalez, J. R. Bailey, and W. J. Lamb, 1994.
  • U.S. Patent #4,648,456, “Method for Acidizing Siliceous Formations”, W. J. Lamb and K. R. Kunze, 1987.
  • Author or co-author of more than 300 internal technical documents over my career with BP (1998-2015) and more than 400 internal technical documents over my career with Exxon (1981-1997).
  • Co-author of five peer-reviewed scientific journal articles related to high-pressure/high-temperature studies of water with nuclear magnetic resonance (NMR) during my university career.
Patents: None
Heavy Oil Production
Name: Wayne Arnold
Education: BSc. in Mechanical Engineering from the University of Alberta, Edmonton, AB, CAN, 1983
No. of years of oil field experience: A Petroleum Engineer with thirty years of experience covering Reservoir, Production, Drilling, Completions and Facilities Engineering, with field operations background. Broad exposure includes conventional oil, deep and shallow gas, frontier, on and offshore projects, with focus on heavy oil and oil sands (thermal). Have expatriate experience in Denmark, Albania and Venezuela and project work in Colombia, Ecuador, Nigeria, Singapore and Papua New Guinea.
What motivates me? Solving technical problems and operational / production issues to enhance value to oil and gas fields. Sharing my experience, knowledge and skillset to assist clients to produce oil and gas in a safe, sustainable and environmentally sound manner.
What I am really good at? Heavy Oil Development and Planning, Operations Engineering, Project Management.
  • Oilfield development planning and valuation, including reserves evaluation, production forecasting and operations budgeting, heavy oil waterflooding, EOR
  • Production and Operations Engineering troubleshooting and optimization
  • Facilities Engineering – Installation and performance evaluation
  • Leading multidiscipline teams
  • Horizontal well planning and design
  • CHOPS, Sand control, cleanouts and handling
  • Progressing Cavity Pumps, Jet Pumps, Beam Pumps, Gas Lift
Papers published:
  • SPE 54107: “Successful Pilot of Thermosyphon Process Heater Reduces GHG Emissions and Operating Costs”, 1999
  • CIPC 2007 – 184: “Polymer Flood Application to Improve Heavy Oil Recovery at East Bodo”, 2007
  • SPE ATW Heavy Oil Operations, Veracruz, Mex: “Polymer Flooding Thin Oil Zones with Bottom Water”, 2007
  • * SPE 157940: “Enhanced CHOPS Using SuperSump to Reduce Environmental Footprint and Increase Oil Recovery”, 2012
Patents: None
Multiphase Flow and PVT
Name: Morten H. Emilsen
Education: MSc. in Fluid Mechanics from Norwegian Institute of Technology, Trondheim, Norway (1994)
No. of years of oil field experience: 20 years of experience within multiphase flow for the oil industry. I have managed flow assurance and debottlenecking studies for field development projects. I am a well control advisor with experience from a number of blowouts world-wide including Aliso Canyon gas blowout in 2015, Macondo blowout in 2010, Montara blowout in 2009. I co-authored the Deepwater Horizon Accident Investigation Report and testified as an expert witness in US District Court. I have specialized in transient multiphase flow simulations and developed the recognized Olga-Well-Kill software.
What motivates me? Using my knowledge and experience to help operating companies to develop oil and gas fields in a safer and more cost effective way.
What I am really good at? Diagnosing flow conditions and planning tubulars, pipelines and operational procedures to increase oil and gas production and recovery. Flow assurance. Evaluating hydrocarbon fluids and behaviors. Use my content analytical skills and computer programming skill to optimize production. Evaluate kick incidents and blowouts. Planning kill operations.
Papers published:
  • Rygg, O, Emilsen, M. H., "Analysis of The Hazardous Consequences Of Pipeline Ruptures", PSIG Annual Meeting, October 23-25, 2002, Portland, Oregon
  • Reed, M., Emilsen, M. H., Hetland, B. Johansen, Ø, Buffington, S., "Numerical Model for Estimation of Pipeline Oil Spill Volumes", 2003 International Oil Spill Conference, Vancouver, British Colombia, Canada. Referenced paper and published in Environmental Modelling & Software, Vol. 21, No. 2, 2006, pp. 178-189.
Patents: None
Sand Control
Name: David L. Tiffin, Ph. D.
Education: Ph. D. Chemical Engineering; University of Notre Dame (1979)
No. of years of oil field experience: 35 years; in positions as research engineer, completions engineer, and eventually Sr. Completions Advisor for Amoco and then BP.
What motivates me?

I love helping people succeed and solving technical problems. I especially enjoy working as part of a highly competent and motivated team.

My interest in sand control took shape in early 1990’s when I recognized that all our “growth areas” within Amoco’s strategy required sand control completions. We were neither consistent nor always successful. Among other things, I worked out a methodology to properly size gravel and screens; and then with BP a method to optimize drawdown to maximize rate without jeopardizing completion integrity. I also greatly enjoyed leading all aspects of completion design, operation and installation within BP’s Gulf of Mexico Shelf operations. I like root cause investigations and led several. Later in my career I enjoyed mentoring, coaching, leading and helping wherever BP needed extra completions horsepower.

What I am really good at? I have been especially successful as a member or leading teams working on complex and difficult problems. I get along well with others. I love learning and listening to different perspectives. Even though I have developed a reasonably good reputation in sand control within BP and the industry, I know there is much we don’t know and many areas to improve.
Papers published: Over 20, including:
  • “Drawdown Guidelines for Sand Control Completions”, SPE 84495, Oct 2003.
  • “Evaluation of Filter Cake Flowback in Sand Control Completions”, SPE 68933, May 2001.
  • “New Criteria for Gravel and Screen Selection for Sand Control”; SPE 39347, Feb 1998.
  • “The In-Situ Combustion Performance of Light Oils as a Function of Pressure (1000 to 6000 psig)”; In Situ, Vol. 21, No 1, 1997
  • “Screening of Oils for In-Situ Combustion at Reservoir Conditions by Accelerating-Rate Calorimetry”, SPE Reservoir Engineering, Feb 1995. (Co-author)
  • “Mechanistic Study of Gravity Assisted CO2 Flooding”, SPE 14895; 1986.
  • “Effects of Mobile Water on Multiple Contact Miscible Gas Displacements”, SPEJ; June 1983.
Patents: None
Well Integrity
Name: Mike Chambers
Education: BSc. in Mechanical Engineering from the Virginia Polytechnic Institute & State University, USA, 1975
No. of years of oil field experience: A Petroleum Engineer by practice with 41 years’ oil and gas industry expertise across multiple reservoir basins in green-field and brown-field production engineering; including exploration, appraisal, and new development projects in 10 countries on 5 continents. Worked in a multitude of environments on a wide range of installations in deep and shallow waters, mountains, jungles, deserts, and the Arctic.
What motivates me? Applying specialist knowledge, skills, experience, know-how, and new / evolving technologies to provide the technical and operational excellence that clients are dependent upon to develop energy resources in a safe and sustainable manner.
What I am really good at? Subject Matter Expert in discovering well integrity and well productivity issues, diagnosing problems, designing well intervention programs to fix the wells and safely returning them to production and profitability.
  • Deep Water Subsea Well Integrity Management
  • Deep Water Subsea Intelligent Well Production Operations
  • Well Intervention Planning & Execution
  • Well Testing
  • Well Surveillance
  • Production and Injection Well Performance
  • Field Production Operations & Troubleshooting
Papers published:
  • OTC 23941-MS: “Rigless Repair of Subsea Tubing Leaks Using Pressure Activated Sealant”, 2013
  • SPE 94221: “Yard and Field Testing of a Tapered OD Coiled Tubing System”, 2005
  • SPE 36585: “Hydrocarbon Management - Surface Processing Facilities in Prudhoe Bay Field of Alaska”, 1996. SPE 36585 also published in the SPE Quarterly: Production & Facilities, May 1997
  • SPE 28502: “Successful Gas Shutoff with Polymer Gel etc. in the Prudhoe Bay Field”, 1994
  • SPE 25496: “Laying Sand Plugs With Coiled Tubing”, 1993
  • Other Papers: “Coiled Tubing Fill Cleanouts” , World Oil Coiled Tubing Conference, 1994
Patents: None
Name: Terje Løkke-Sørensen
Education: MSc. in Petroleum Engineering from the Technical University of Trondheim, Norway (1984)
No. of years of oil field experience: 30 years, in positions as drilling engineer, drilling supervisor and project leader for various operating oil companies in Norway and abroad.
What motivates me? My first awakening around well integrity happened early in my working career as Drilling Supervisor on production platform. We had just finished cementing the production casing and had lifted off the riser/BOP to set emergency casing hanger slips. Our contingency plan was to set down the riser/BOP should the well flow up the annulus. Not a very reliable plan, considering that all the things that could go wrong. Later-on, we started to use multi -bowl wellheads whereby avoiding disconnection of the BOP to set hanger and seals. A much safer operation. I find Well Integrity to be the core of the core in well construction and operations – there is always something new to learn and people to discuss it with
What I am really good at? Through my work for major clients in authoring of well barrier requirements and managing revision #3 and #4 of NORSOK D-010 Well Integrity Standard, I learned a lot about how to identify/select well barriers and related performance requirements well barrier elements. I also lecture these principles in courses and at seminar. I use this knowledge in conducting technical investigations and authoring of reports. With an analytical mind and logical approach, my reports are easy to read and follow. I love to use tables and sketches instead of many words to convey the message.
Papers published: None, other than presentations
Patents: None
Well Intervention
Name: Mike Bednarz
Education: Bachelor of Science in Engineering from Texas Tech University (1979)
No. of years of oil field experience: 35 years, in positions as Product Development Engineer, Division Engineer, Global Advisor, Project Manager, Technical Manager, Senior Intervention Engineer, Plug and Abandonment Engineering Team Lead in the US, Gulf of Mexico, and abroad in Saudi Arabia, Abu Dhabi, Australia, and Venezuela.
What motivates me? Being presented with a difficult well intervention problem or a Plug & Abandonment well that requires critical thinking and novel solutions. Being part of/leading a high performing team.
What I am really good at? Engaging engineering and operations teams along with supplier/3rd party specialists to deliver detailed engineering programs. Delivery to schedules and on budget while maintaining safety as a priority and identifying and mitigating risks to people, plant, and equipment.
Papers published: None, other than presentations
  • US Patent #4,842,074 Gas Storage Well Safety Systems & Methods
  • US Patent #4,842,074 Gas Storage Well Safety Systems & Methods
Wellbore Stability
Name: Ken Kunze
Education: PhD Chemistry, Rice University Houston Texas, 1978
No. of years of oil field experience: 38 years, ExxonMobil, comprising assignments in Drilling and Completion research, as drilling engineer in Norway (6+ years), as lead drilling engineer for Skene in Aberdeen (2.5 years), and in varied planning and technology support functions (8 months in Melbourne for PNG planning). Most recently worked in Unconventional Resources D&C group.
What motivates me? Engaging in analysis of data to discover what the drilling situation is in any given area (data sleuthing).
What I am really good at?

I enjoy approaching new field areas and projects through a review of available experiential data, logs, drill cuttings analysis, and field reports, in order to reveal potential problems such as wellbore stability and lost returns, slow drilling, formation damage, and high non-productive time costs. Once the major difficulties have been identified, detailed attention can be directed toward mitigation and avoidance methods. During my work in Drilling Planning and Unconventional Resources, I often had to draw from my technical background to assess potential operational difficulties in frontier or under-developed areas and identify the necessary technology. Examples include identifying geo-mechanical problems presented by drilling in Papua New Guinea. Also, as one of 5 initial members of our Piceance CO drill team, I reviewed well files and logs from nearly 50 previous “ad hoc” wells that experienced high wellbore-related NPT, and created a major part of the Well Design Basis document. More recently, I engaged in “data sleuthing” into Chinese well reports and logs to assess the costs and difficulties of remediating or abandoning hundreds of wells for a proposed joint venture EOR project at Renqui, China.

I am especially proud of establishing drill cuttings injection as standard technology within my company. Prior to the project I initiated within Esso Norway, this technology was new to the corporation, although it had become standard among other operators in the North Sea, Alaska, and the Gulf of Mexico. As a result, I became the Cuttings Injection Subject Matter expert, published a company manual, and assisted a variety of injection projects including those at Point Thompson AK, Sakhalin Island Russia, and Piceance CO.

My research and field experience with drilling fluids led me to become the Oil Based Fluid subject matter expert for my company, and chairman of the API sub-committee that standardized the use of the Activity Meter to measure the water phase activity of oil emulsion fluids, a property that is critical for wellbore stability and shale stabilization.

Papers published:
  • Kunze, K. R., Romero, E. E., and Duck, S., “Colorado Drill Cuttings Injection Pilot Results”, SPE 151453, presented at IADC Drilling Conference and Exhibition, San Diego, CA, March 2012
  • Kunze, K.R., and Skorve, H.: "Merits of Suspending the First Platform Well as a Cuttings Injector," SPE 63124, 2000 SPE Annual Technical Conference, Dallas, TX, October 2000
  • Kunze, K.R. and Steiger, R.P.: "Accurate In-Situ Stress Measurements during Drilling Operations," SPE 24593, 67th Annual SPE Technical Conference, Washington, D.C., October 1992
  • Kunze, K.R., Steiger, R.P., “Extended leakoff tests to measure in-situ stress during drilling”, Rock Mechanics as a Multidisciplinary Science, Roegiers (ed), 1991 Balkema, Rotterdam ISBN 90 6191 194X
  • Chow, T. W., McIntire, L.V., Kunze, K. R., Cooke, C. E., “The Rheological Properties of Cement Slurries: Effects of Vibration, Hydration Conditions, and Additives”, SPE Production Engineering, November 1988 13936
  • Kunze, K. R., “Obtaining and Verifying Quality Cement Blends”, SPE 15576, Presented at 61st Annual Technical Conference of SPE, New Orleans, LA, Oct 5-8, 1986
  • • Kunze, K.R. and Shaughnessy, C. M.: "Acidizing Sandstone Formations with Fluoboric Acid, " SPEJ (Feb 1983)
  • • Shaughnessy, C.M. and Kunze, K.R.: "Understanding Sandstone Acidizing Leads to Improved Field Practices, " JPT (July 1981)
  • U.S. Patent #4,648,456, “Method for Acidizing Siliceous Formations”, W. J. Lamb and K. R. Kunze, 1987
BOP and Well Control Equipment Regulatory Compliance
Name: Mark Wilson
Education: Mechanical and Production Engineering – Napier University Edinburgh 1985, European Welding Technologist – TWI Abington Cambridge 1995
No. of years of oil field experience: A Mechanical / Production Engineer by practice with 31 years’ oil and gas industry expertise across multiple disciplines working in 8 countries on four continents. Collaborated in a multitude of environments on a broad range of installations in deep and shallow waters.
What motivates me? Applying specialist knowledge, skills, experience, know-how, and new/evolving technologies to provide the technical and operational excellence that clients are dependent upon to ensure critical safety equipment is available when required.
What I am really good at? I have a significant record of accomplishment related to mechanical and production engineering in the full life cycle of wellheads, production trees, BOP’s and well control equipment;
  • Familiar with PSA / NORSOK / API specifications
  • Subsea and Surface BOP’s
  • Piloted and MUX Control systems
  • Subsea and Surface Production Trees
  • Technical audits and inspections
  • Manufacturing processes and procedures
  • Welding processes and procedures
Papers published: None
Patents: None
Multilateral Technology & Well Construction Specialist
Name: Ken Horne
Education: MSc in Oil and Gas Engineering from Robert Gordon University Aberdeen
No. of years of oil field experience: I have worked in the O&G industry for 32 years. I began my career in the industry as a slick line operative which was a perfect platform for learning live well intervention techniques and becoming familiar with various well completion designs and equipment. For the last 22 years I have been exclusively providing multilateral well construction, complex completion support and specialist multilateral knowledge to operators worldwide. This has allowed me to work with many Oil & Gas companies such as BP, RWE, Xcite Energy, Husky, Chevron, Total, CNR, BG, PetroSA, EnQuest, Maurel & Prom, Maersk UK, Rhein Petroleum and Fairfield Energy Ltd.
What motivates me? The challenge to review the customer’s needs and work with them to select the most appropriate multilateral system to interface as seamlessly as possible with their drilling and completion requirements. Sharing my experience to assist with the planning, preparation and applying decades of knowledge and know-how during the execution phase.
What I am really good at? Reducing the learning curve within the client’s team to fast track their multilateral equipment and methods education whilst supporting the planning and preparation for any multilateral well application. Knowing the capabilities of the multilateral equipment suppliers, I will reduce the equipment and support evaluation time.
  • Assisting with equipment and operational failure analysis of multilateral well equipment and procedures
  • Providing technical instruction and coaching on multilateral well design and best practises
  • Multilateral tender preparation, tender model answer preparation and tender review analysis
  • Preparing and witnessing Systems Integration Test and equipment qualification and integration testing
  • Preparing procedures and programmes for constructing new multilateral wells and interventions to existing wells
  • Presentations to project partners and senior management review boards during the project appraise ands select phases
Papers published:
  • Hoton a Well of Many Firsts. Published in BP Well Connected April 2002
  • Innovative Solution Rescues Hoton Development Tri-Lateral Well. Published October 2002 for the BP Helios awards
  • SPE paper (84028) on BP Hoton ML project. Using TAML-3 Multilateral Technology to Deliver a Technologically, Fast Track, One Well Development in the Southern North Sea.
  • Taking The Multilateral Route to Increased production. Published November 2003 in the internal BP Connexions magazine
  • Successful Delivery of First Level 3 HOOK Hanger Multilateral on Magnus with Ten World First Along the Way. Published April 2004 in the BP Wellconnected magazine
  • SPE paper (105524) on BP NWAD ML project. The Evolution of a TAML L-4 Multilateral System to Meet The Challenges of a BP Deep Water Sub Sea Well. Presented at the SPE/IADC Drilling Conference & Exhibition 20th-22nd February 2007
  • Debris-tolerant barrier solves challenging problem. View Here
  • Multilateral whipstock and retrieval tool USSN 60/043,902