Multi-Code Wall Thickness Comparison
Method notes for engineering and data workflows.
The challenge
Organise the inputs, calculations and reporting into a repeatable workflow with checks.
Solution Approach
Systematic Parameter Sweep
The automated analysis evaluated a comprehensive matrix of design parameters: 5 pipe outer diameters (8, 10, 12, 14, and 16 inch), 3 candidate wall thicknesses per OD, design pressures from 5,000 to 10,000 psi, and water depths from 500 to 2,500 m. Each combination was evaluated against all 3 codes simultaneously.
Governing Code Identification
For each pipe size and water depth combination, the automated comparison identified which code governed the minimum wall thickness. The comparison records the governing code for each pipe diameter and water depth.
Technical References
| Standard | Reference |
|---|---|
| ASME B31.4 | S403.2.1 burst, S403.2.2 collapse |
| API 1111 | Sec 4 design requirements |
| DNV-ST-F101 | Sec 5 wall thickness design |
Tools
- digitalmodel wall thickness module (Python): Core calculations for ASME B31.4, API 1111, and DNV-ST-F101
- aceengineer.com Wall Thickness Calculator: Interactive demo for single-code assessments
Related methods
- Pipeline On-Bottom Stability Assessment
- Automated FEA Post-Processing Pipeline for Subsea Equipment Qualification
Summary
Review the inputs, assumptions and calculation results for the stated scope.
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