Table 1 Stress-checking requirement of oil and gas pipelines
From: Stress analysis of parallel oil and gas steel pipelines in inclined tunnels
Stress type | Gas pipeline | Oil pipeline |
|---|---|---|
Peak stress | \(\sigma_{L} \le 0.90\sigma_{s}\) | \(\sigma_{L} \le 0.90\sigma_{s}\) |
Primary stress | \(\sigma_{H} \le 0.75\sigma_{s}\) | \(\sigma_{H} \le 0.72\sigma_{s}\) |
Secondary stress | \(\sigma_{E} \le 0.72\sigma_{s}\) | \(\sigma_{E} \le 0.90\sigma_{s}\) |