Service Life Prediction for Subsea Control Fluid
Challenge
A customer required validation that their TPU seal material could survive 25 years of continuous service in water/MEG subsea control fluid at 20°C, with determination of the maximum safe operating temperature.
Results
Implemented accelerated lifetime testing methodology similar to NORSOK M-710 (v3). Three mechanical parameters were probed: tensile strength (UTS), stress at 100% strain (M100), and elongation at break (EAB). A generalized regression model (predictive lifetime model) was constructed from experimental aging data.
Approach
Implemented accelerated lifetime testing methodology similar to NORSOK M-710 (v3). Three mechanical parameters were probed: tensile strength (UTS), stress at 100% strain (M100), and elongation at break (EAB). A generalized regression model (predictive lifetime model) was constructed from experimental aging data.
Impact
Implemented accelerated lifetime testing methodology similar to NORSOK M-710 (v3). Three mechanical parameters were probed: tensile strength (UTS), stress at 100% strain (M100), and elongation at break (EAB). A generalized regression model (predictive lifetime model) was constructed from experimental aging data.
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