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Quantitative Risk Assessment for Mahul-Uran-Chakan Shikrapur-LPG Pipeline (MUPL & UCSPL)

BPCL proposes to lay an underground cross-country LPG pipeline from Mumbai Refinery to Uran LPG Bottling Plant for transportation of LPG. The Project envisages construction of approx. 26 km long pipeline with offshore portion of 14km and onshore portion of 12 km. This pipeline will also be utilized by HPCL for the transportation of LPG from their Mumbai Refinery to BPCL Uran LPG Plant.

HPCL proposes to lay an underground cross-country LPG pipeline from Uran LPG Bottling Plant of BPCL to BPCL LPG Plant at Shikrapur for transportation of LPG. The project envisages construction of appx. 157 km long 12” dia seamless pipeline which will connect BPCL LPG. Plant at Uran to BPCL LPG Plant at Shikrapur and 2 spur pipelines of 10” dia seamless pipeline– 1 pipeline of appx. 7.0 km to HPCL LPG Plant at Chakan, and 1 pipeline of appx. 5.5 km to lOCL LPG Plant at Chakan.

The scope of the project consists of performing Quantitative Risk Assessment study for Mahul-Uran-Chakan Shikrapur-LPG Pipeline (MUPL & UCSPL).

The study objectives were as follows:

  1. Identification of hazards and release scenarios:

Hazardous scenarios were identified based on the properties of material handled and the potential hazards in the pipeline which could lead to loss of containment events.

2. Assessment of the risk:

Risk Assessment combines the incident outcomes’ consequences and likelihood of all selected incidents to provide a measure of risk. Consequence estimation (the potential for damage or injury from specific incidents) and likelihood assessment (frequency or probability of occurrence of an incident) were determined based on the outcomes, consequences, damage envisaged in the premise and failure frequency, probabilities (population, weather and ignition) considered.

3.Risk Evaluation:

The individual risk results were evaluated against the UK HSE Risk Acceptance Criteria to determine whether the risks are broadly acceptable, ALARP or unacceptable and to make some professional judgments about the significance of the risks.

4. Risk elimination/reduction:

Based on the risk evaluation, reduction measures were recommended in order to reduce the risk to a tolerable or ALARP region.

Aerial View of  LPG pipeline from Mumbai Refinery to Uran LPG Bottling Plant
Aerial View of LPG pipeline from Mumbai Refinery to Uran LPG Bottling Plant

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