Static and Cyclical Dents Assessment
![Dented pipeline in the field with a ruler showing the depth of the dent](/sites/default/files/2023-10/Pipeline%20dent%20example%20in%20the%20field.jpg)
Are Pipeline Dents Causing You Stress?
Mechanical damage can result in immediate pipeline failure — but not always. Dents might be below the failure condition at the time of impact but can grow through cyclic pressure until they become a “delayed threat” to pipeline integrity.
Approach
![Example EMAT profile data for crack assessments](/sites/default/files/styles/webp/public/2023-10/Dent%20assessment%20depth%20graph.png.webp?itok=Qi4lxybG)
Three Levels of Assessment
A three-level assessment provides insight into future integrity and pressure cycling of pipeline dents. We use the in-line inspection (ILI) dent profile and calculated strain to begin the prioritization process. The next step looks at the constraint, acuteness and both static and cyclic loading. If it’s needed, a finite element analysis and fatigue assessment can be conducted.
Value
Setting the Right Priority
We provide everything from a simple priority ranking enabling optimized dent repairs to a full-level analysis for critical dents where accessibility makes repair difficult. Plus, we provide recommendations on future operating conditions.
![3D FEA heatmap from dent assessment 3D FEA heatmap showing evidence of a dent](/sites/default/files/styles/webp/public/2023-10/FEA.png.webp?itok=5LuNm3pX)