Assessment of Oil and Gas Pipeline Risks

Olorunmaiye, John A. (1995-12)


Pipelines are commonly used to transport oil and gas because they are more energy-efficient than other methods of transporting oil and gas. The possible hazards from release of oil or gas from a pipeline leakage or rupture are explosion, fire or pollution of the environment. A computer programme written to compute unsteady flow in natural gas pipeline was used to calculate the rate of gas release from a ruptured 49 km pipeline section. After one thousand seconds when about 70 % of the gas had been released, the explosion hazard zone had grown to a radius of about 252m from the ruptured pipeline. Pipelines should be patrolled by ground and aerial surveillance teams and they should be inspected regularly to avoid catastrophic failure and ensure the safety of the pipeline system.