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Challenges of Pipe & Tube Testing

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The following provides an overview of recent changes and challenges facing pipe & tube manufacturers and suppliers.

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Challenges of Pipe & Tube Testing

  1. 1. Challenges of Pipe and Tube Testing Presented by Instron® A World Leader in Materials Testing An overview of recent changes and challenges facing Pipe and Tube manufacturers and suppliers
  2. 2. 2 Why Now? • Growth in Oil country tubular goods (OCTG) • Shale gas horizontal drilling/fracking globally • Multiple new pipelines planned in the US Source: U.S. Energy Information Administration, Today in Energy, January 2, 2014. Source: GreenCupboards, Fracking Debate, August 25, 2011.
  3. 3. 3 Why is This Important? • Horizontal drilling and fracking implications • Increased length of pipe • Increased strength • Added multiple wells on a single site • How does this affect your testing requirements? • Increased load capacity and volume of testing • Is your system ready for the changes heading your way?
  4. 4. 4 Pipe & Tube Applications • Are pipe & tube the same thing? • Pipe = Nominal, ID (Inside Diameter) • Tube = Nominal, OD (Outside Diameter) • Pipe Applications • Tube Applications
  5. 5. 5 Product Standards Link to Testing Standards ISO 6892-1 2009 ASTM E8M:2012 ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products ANSI/API Spec 5L Petroleum and natural gas industries Steel pipe for pipeline transportation systems ISO 3183:2012 Petroleum and natural gas Industries Steel pipe for pipeline transportation systems ISO 377:1997 Steel and steel products Location and preparation of samples and test pieces for mechanical testing ISO 7438:2005 ANSI/API Spec 5L ISO 3183:2012 ISO 148-1:2010 ASTM E-23 ANSI/API Spec 5L ISO 3183:2012 Bend Testing Charpy Impact Testing Tensile Testing
  6. 6. 6 Your Testing Challenges • Specimen geometry/curvature • Testing full section pipe and tube • Suitable strain measurement • Impact testing high-strength materials
  7. 7. 7 Challenge – Specimen Geometry • The curved shape of pipe and tubing presents a number of gripping challenges.
  8. 8. 8 Gripping Longitudinal Strips • Application-specific jaw faces allow you to quickly grip longitudinal strip curved cut out specimens, without flattening the tab ends.
  9. 9. 9 Challenge – Testing Full Section Pipe/Tube • Specimen preparation is time consuming; lab operators generally want to test the largest full section of pipe possible on a given testing system.
  10. 10. 10 Testing Full Section Product • End plugs are used to prevent crushing • Allows the testing of full product sections • Removes the need to machine specimens from full product, saving time and money
  11. 11. 11 Challenge – Suitable Strain Measurement • Pipe and Tube specimen geometries make attachment of extensometers challenging.
  12. 12. 12 Suitable Strain Measurement • An extensometer securely clamps the inner diameter of strip specimen, preventing strain measurement errors due to slippage or undesired movement on the curved specimen surface. • A single instrument accommodates a wide range of specimen diameters, reducing changes in test setup.
  13. 13. 13 Challenge – Impact Testing High Strength Pipe & Tube Materials • Higher strength materials are being used in the pipe and tube industry in a drive for deeper and more complex well production • Increased impact energy • Continual focus on improved safety • Tractability of results • Greater volume of tests
  14. 14. 14 High-Energy Impact for Pipe & Tube NEW IMAGE Showing advantages… Chiller Screen info • Appropriate hammer weight, which fully fractures specimen at impact, produces accurate and reproducible results • Interlocked safety screen prevents harm to your operator • Automatic recording of test results linked directly into your business system removes operator steps and opportunity for errors • Minimal number of steps required to run a test allow increasing test volume per shift
  15. 15. Does this sound familiar? Do you see the same challenges in your business? www.instron.com for more information
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The following provides an overview of recent changes and challenges facing pipe & tube manufacturers and suppliers.

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