Table 1 Descriptive statistics of the utilized features for detecting pipeline failures.
From: Semi-supervised learning framework for oil and gas pipeline failure detection
Feature | Mean | Median | Minimum | Maximum | Standard Deviation |
|---|---|---|---|---|---|
Unintentional release (MCF) | 24,318.20 | 4,000.00 | 0.00 | 585,457.00 | 57,576.27 |
Intentional release (MCF) | 4,354.93 | 205.00 | 0.00 | 89,152.00 | 10,084.19 |
Cover depth (ft) | 51.00 | 42.00 | 0.00 | 336.00 | 48.89 |
Pipe diameter (in) | 17.40 | 16.00 | 2.00 | 42.00 | 9.20 |
Pipe thickness (in) | 0.28 | 0.25 | 0.13 | 1.00 | 0.09 |
Pipe strength (psi) | 45,839.39 | 46,000.00 | 29.00 | 80,000.00 | 11,802.71 |
Potential impact radius (ft) | 352.18 | 335.00 | 23.00 | 1,155.00 | 209.27 |
Operational pressure (psi) | 656.91 | 690.50 | 1.50 | 2,689.00 | 317.75 |
Max allowable pressure (psi) | 814.85 | 810.00 | 120.00 | 3,255.00 | 358.50 |
Potential isolated segment (ft) | 59,425.05 | 48,014.50 | 1.00 | 801,150.00 | 79,836.08 |
Pipe age (years) | 52.70 | 54.00 | 0.00 | 96.00 | 17.66 |
Impact area (in2) | 3,273.60 | 1.67 | 0.00 | 114,022.50 | 12,195.38 |
Prompted shutdown (1:yes, 2:no) | 1.91 | 2.00 | 1.00 | 2.00 | 0.29 |
Ignition (1:yes, 2:no) | 1.15 | 1.00 | 1.00 | 2.00 | 0.36 |
Crossing (1:yes, 2:no) | 1.12 | 1.00 | 1.00 | 2.00 | 0.32 |
Pipe coating type (multiple) | – | – | – | – | – |
Location class (multiple) | – | – | – | – | – |
Previous inspection (1:yes, 2:no) | 1.56 | 2.00 | 1.00 | 2.00 | 0.50 |
SCADA anomaly flag (1:yes, 2:no) | 1.20 | 1.00 | 1.00 | 2.00 | 0.40 |
