Quantitative Risk Analysis of Offshore Fire and Explosion Based on the Analysis of Human and Organizational Factors

Table 1

The failure probability and basic events of fault tree.

	Basic event	Failure probability	Importance degree of probability
X0	Release from joints of upstream pipeline	0.045	0.00865
X1	Compressor completely failed causing release	0.07	0.00865
X2	Release from impeller	0.1	0.00865
X3	Release from seal	0.12	0.00865
X4	Release from casing of compressor	0.05	0.00865
X5	Release from upstream pipeline	0.048	0.00865
X6	Ignition due to explosion energy	0.15	0.01231
X7	Ignition due to external heat from surrounding	0.2	0.0124
X8	Ignition due to electric spark	0.25	0.01314
X9	Release from junction of pump and pipeline	0.01	0.00865
X10	Release from rotor	0.06	0.00865
X11	Pump failed to operate causing release	0.15	0.00865
X12	Release from casing	0.2	0.00865
X13	Release from downstream pipeline	0.0065	0.00865
X14	Release from joints of downstream pipeline	0.09	0.00865