Viking Public Casing Design Training
3-Day Course in Houston, TX - September 15-17th, 2025
This 3-day course covers the relevant subjects required to understand the structural mechanics of downhole tubular design. A special emphasis on horizontal aspects will be included. The third day looks at interactive stresses from multiple fracturing events and will consider other relevant failure mechanisms, as well as provide an introduction to Geothermal and CCS Well Design.
Participants are encouraged to bring existing well designs to be used as part of the training examples and exercises.
Course Outline
Day 1 - Fundamental Design Principles
Introduction to Casing & Tubing Design - Instructor and student introductions are made in order to familiarize the instructor with each participant’s background. A casing design overview is provided and the course outline is discussed.
Why Casing Design is Important
Evaluation of OCTG
Casing failures modes
Performance Properties- Rating calculation methods for each of the five design factors are presented in this section. API 5C3 is discussed in detail
Internal Yield Pressure versus Ductile Rupture
High Collapse Casing
Fundamental Design Principles.
Buoyancy & Pressure-Area Method
Burst & Collapse
Understanding VME (Triaxial) Stress
Casing Design Standard Overview (as applicable vs Viking Standards)
Connections - The components of a connection and connection selection techniques are discussed. Upon completion, participants should be able to select an appropriate API or proprietary connection.
API & Proprietary (Premium and Semi-Premium)
Practical Considerations for Connection Selection
Using the Connection Service Envelope
Torque-Tension Plots
Day 2 - Advanced Topics in Casing Design
Material Aspects - This section takes an in depth look at the material aspects of design. Basic material science concepts are followed by a detailed look at API 5CT.
Pipe Mechanics
ISO 15156/NACE MR0175: Sour Service Design
Selecting the Appropriate Corrosion Resistant Alloy
Overview of API 5CT & API 5B
OCTG Manufacturing Process
Inspection requirements of OCTG-Mill & Post Mill
Procurement Recommendations
Running & Installing OCTG-API RP 5C1
Casing Loading and Design Considerations – The most common production casing load cases are presented with special emphasis on the Casing Frac load case.
Burst load with class exercise
Collapse load with class exercise
Tension/compression with class exercise
Triaxial with class exercise
Day 3 - Stresses During Fracturing and Intro to Geothermal & CCS Wells
Stress During Fracturing
Casing Damage - This course offers a look into the world of interactive stresses multiple fracturing events using case histories, plus information on: Erosion, Mechanical damage and Chemical reactions
Geothermal Wells
High temperatures considerations for steam injection and geothermal wells
Yield strength reduction due to temperature
Tension-Collapse considerations
Material considerations & risks
CCS Wells
Difference between CCS wells and oil and gas wells
Material considerations / corrosion and pitting concerns
Key drilling & injection loads and special considerations for CCS wells
Our Instructors
Barry Cresap, P.E.
Well Engineering Director
Barry has over 20 years of oil and gas experience, primarily working as a principal drilling engineer and manager over a wide range of campaigns and rig types for both land and offshore. His engineering experience spans across both conventional and unconventional designs and operational practices including deepwater, shelf, and horizontal drilling. He began his career with ENSCO and completed a 3-year “fast-track” superintendent program which entailed working rig-based positions from crane crew, drill crew, up tonight toolpusher on jack-ups in the Gulf of Mexico. He broadened his experience at Grey Wolf / Precision Drilling while executing turnkey contracts all along the US Gulf Coast.
He joined BHP in 2012 in the Eagle Ford as a Senior Drilling Engineer and moved up to Drilling Manager. He joined the offshore division in 2014 and executed a deepwater exploration well in Central GOM (4,200 feet WD) in 2017 to 32,000’MD. He moved internationally to Perth, Australia in 2019 - 2021 to plan a multi-lateral campaign (12,000 feet laterals) along Australia’s Northwest Shelf. He and his family have since returned back to the US. He left BHP in 2021 with the merger acquisition by Woodside. He joined Viking Engineering shortly thereafter and is now working as the Director of Well Engineering and now resides with his family in Katy, TX.
Parveen Sachdeva, Ph.D.
Renewables & Special Projects Manager at Viking Engineering
Parveen Sachdeva has over 18 years of oilfield experience. His expertise is in critical well design, flow assurance modeling and thermal analysis of wellbore heat transfer. At Viking Engineering, he has been involved in projects for casing design of class IV & class IV CO2 Injection (CCUS) wells, high temperature geothermal wells, casing and tubing design of shale gas wells and deepwater (HPHT) wells. He is well versed with design software WELLCAT, TDAS and StrinGnosis, and flow assurance software WELLFLO. His research interests include thermal well design including steam injection and high temperature geothermal wells. Sachdeva has authored or coauthored 8 technical papers and holds 1 US patent. He received his B.S. degree in Aerospace Engineering from the Indian Institute of Technology (IIT Kanpur), and a M.S. and Ph.D. in Mechanical Engineering from the University of Central Florida.
Mario Guerra, P.E.
Director of Lab & Failure Investigation
Mario has over 20 years of experience in the areas of metallurgy, welding engineering, failure analysis, corrosion engineering, environmental assisted cracking, fracture mechanics, sour service fit for purpose testing and evaluation, materials specification development, and HPHT equipment materials engineering design.
George King, P.E.
Production Operations Team Lead
George E. King is an independent contractor for Viking Engineering as a Registered Professional Engineer. He work in Texas and Oklahoma with over 50 years of oilfield experience since starting with Amoco Production Research in 1971. He has a BS degree majoring in Chemistry from Oklahoma State University and a BS in Chemical Engineering and a MS in Petroleum Engineering from the University of Tulsa.
Technical accomplishments include over 100 technical papers, book chapters and industry articles and he has served as an Adjunct Professor at the University of Tulsa from 1988 to 1998, teaching well completions, workovers and stimulations in night classes. He regularly presents invited guest lectures at Universities in Oklahoma, Colorado, and Texas.
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This 3-day course covers the relevant subjects required to understand the structural mechanics of downhole tubular design. A special emphasis on horizontal aspects will be included. The third day looks at interactive stresses from multiple fracturing events and will consider other relevant failure mechanisms.
13501 Katy Freeway, Suite 3300, Houston, TX 77079
September 15-17th, 2025
Light Breakfast and Lunch will be served for those that attend In-Person
24hrs PDH Credit
This covers only day 3 of the course. The third day looks stresses during hydraulic fracturing and provides an introduction to geothermal and CCS well design.
13501 Katy Freeway, Suite 3300, Houston, TX 77079
Light Breakfast and Lunch will be served for those that attend In-Person
September 17, 2025
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