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51312-01177-Failure investigation of high pressure surge in 42” propane loading line in LPG Storage facility

Product Number: 51312-01177-SG
ISBN: 01177 2012 CP
Author: Saad AL-Dhafiri
Publication Date: 2012
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$20.00
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Pipeline integrity is utmost important with respect to its operational reliability while ensuring protection of health safety and environment and economy. Pressure surge or hydraulic shock is caused by rapid velocity changes of the fluid usually incompressible liquids. Small lines (less than 100 m) are not commonly subjected to pressure surges. But long lines are often prone to high pressure surges hence they are designed to surge protection and operated carefully. Otherwise this can result in ranging from minor shift of pile line from its support locations upto potent threat to its operational safety & integrity of plant in addition to dent in profitability of the asset. Here is an incident of catastrophic rupture of 42” propane loading line in gas plant storage of high consequence operating area after 30 years of safe operation. Every incident although unwarranted but it give us an opportunity to lesson learnt review the past design adopt best practices Nondestructive testing and refresher training to operating staff to promote safety awareness. This paper elucidate the state of original material joint design used in construction weld defects and degradation of material and impact of surge including operational issues lead to brittle failure of the line. Key words: LPG storage facility propane loading line pipeline integrity pressure surge joint design brittle failure.
Pipeline integrity is utmost important with respect to its operational reliability while ensuring protection of health safety and environment and economy. Pressure surge or hydraulic shock is caused by rapid velocity changes of the fluid usually incompressible liquids. Small lines (less than 100 m) are not commonly subjected to pressure surges. But long lines are often prone to high pressure surges hence they are designed to surge protection and operated carefully. Otherwise this can result in ranging from minor shift of pile line from its support locations upto potent threat to its operational safety & integrity of plant in addition to dent in profitability of the asset. Here is an incident of catastrophic rupture of 42” propane loading line in gas plant storage of high consequence operating area after 30 years of safe operation. Every incident although unwarranted but it give us an opportunity to lesson learnt review the past design adopt best practices Nondestructive testing and refresher training to operating staff to promote safety awareness. This paper elucidate the state of original material joint design used in construction weld defects and degradation of material and impact of surge including operational issues lead to brittle failure of the line. Key words: LPG storage facility propane loading line pipeline integrity pressure surge joint design brittle failure.
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