2. Using the Bowtie diagram below as a guide, consider the Bombay High North pla

Question

2. Using the Bowtie diagram below as a guide, consider the Bombay High North platform accident in 2005 which destroyed the platform. Various websites provide details of the event including the reference list below Bow tie diagram Preventive Measures Mitigating or Control Measures Risk Hazards The Hazardous Event (or Risk) should be the hydrocarbon release from the riser. Using the table below, indicate, in no more than 500 words, 11 of the main the Hazards and the associated Preventive Measures, Mitigating or Control Measures and Consequences which need to be considered to give a full understanding of the incident. Ensure that you link the measures to the appropriate hazard or consequence. Hazards Preventive Measures Control/Mitigation Consequences

Explanation / Answer

THe 11 hazards are

1. The oil caught fire and gas, under high pressure, began to escape.

PREVENTIVE MEASURE-boat / helicopter operations should be there to take control on fire assoon as possible during bad weather conditions.

CONSEQUENCE- Neglecting these features may lead to cause various casualities.

2.11 people died and 11 others were reported missing

PREVENTIVE MEASURE-there should be a proper disaster management system.

CONSEQUENCE- improper disaster management system can lead to cause more life taking risks.

3. riser failure caused largeamounts of gas to be uncontrollably released

PREVENTIVE MEASURE-riser protection guards should be there in position

CONSEQUENCE- can lead to release of gas uncontrollably and cause severe mishappenings

4.The MPS also caught fire and was towed away by another multi-purpose support vessel.

PREVENTIVE MEASURE-MPS should not be remain at one position in sea.

CONSEQUENCE- Even a small error can escalate and go totally out of control.

5.The multi-purpose support vessel causing the fire sank fewdays later!

PREVENTIVE MEASURE-Approach of MPS from should not be from windward side.It should be alert always.

CONSEQUENCE- this vessel should not go close to MHN which can cause alot of leakage of oil.

6.Multiple riser failures

PREVENTIVE MEASURE-risers should be installed with caissons, well conductors and J Tubes.

CONSEQUENCE- it can cause explosion,fire and impact.

7.The heat radiation caused severe damage to the NA platform

PREVENTIVE MEASURE-marine operation and safety controls in the vicinity of offshore installations should be there.

CONSEQUENCE- there can be a lot of damage to humans as well as materials.

8.The flow of oil and gas from the affected wells

PREVENTIVE MEASURE-there should be proper maintaining and monitoring .

CONSEQUENCE- there can be more fire risks on a large extent.

9.Large amount of gas was released.

PREVENTIVE MEASURE-Vessel loading/offloading/mooring not undertaken at riser locations.

CONSEQUENCE- It can cause multiple collisions with risers and futher leads to more dangerous hazards.

10.loss of materials

PREVENTIVE MEASURE-Samudra Suraksha should be always ready to prevent any loss of infrastructure.

CONSEQUENCE- there will be more loss of mankind and other machinery.

11.The fire was so intense that the MHN was abandoned.

PREVENTIVE MEASURE-There should beProvision of subsea isolation valves (SSIVs) to limit the consequences of any larger damage.

CONSEQUENCE- It can cause more casualities than happened there.

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