印度BHN平台事故课件.ppt

20,标题,,单击此处编辑母版文本样式,,第二级,,第三级,,第四级,,第五级,,*,THE BHN DISASTER,孟买,BHN,平台灾难,,,,1,,事故损失,355 employees rescued, 13 missing; the worst accident in the history of ONGC,,,355,人被营救，,13,人失踪；印“石油天然气公司（,ONGC)”,历史上最惨重事故,,,Death toll up to 12 in Bombay High fire,,在孟买火灾中有,12,人死亡,,,In terms of property loss, this has been the most serious accident in ONGC history.,,财产的损失是,ONGC,历史上最严重的,2,,事故过程,,A person on board the ship had broken his finger and needed medical attention, which was available on the offshore platform.,,供应船上有一名工作人员手指被弄伤，需要到海上平台提供医疗帮助。

for reasons yet to be established, the ship lost control and drifted and collided with the platform. All available information indicates that this collision resulted in serious oil leakage and fire, which spread rapidly,,未确定的原因致使船舶失去控制、移动然后碰撞到平台所有可提供的资料显示这次碰撞造成严重的溢油并引起大火迅速扩散These multipurpose support vessels are highly sophisticated computerised ships, equipped to deal with all sorts of emergencies. They have dynamic positioning systems and it is difficult to say what went wrong,这种多用途的供应船是久经世故的计算机化的船舶，配备了各种完善的应急设备，并有动力定位系统，很难说到底出了什么问题。

3,,事故过程,,There were 227 people on the Bombay High platform, while there were 84 people on board,Samudra Suraksha,and 73 people on Noble Charlie Yester, a privately-owned drilling rig, which also had to be abandoned. The platform was lost in less than two hours, while,Samudra Suraksha,though afloat is still on fire and will be out of service. There were about 384 people in all these places and 355 have been rescued.,,有,227,名员工在孟买（,Bombay High,）平台上，,84,人在,Samudra Suraksha,上工作，,73,人在,Noble Charlie Yester,上工作，一座本该要废弃的私人钻井平台。

不到两个小时,Noble Charlie Yester,就不见了，而,Samudra Suraksha,则在大火之中漂浮在海面失去作业能力共有,384,人在这些设施上，其中,355,人获救Of the 12 persons who died, six are ONGC personnel (five officers and one worker); one person is from SCI (which contracts the ships to ONGC), and one from the rig Charlie Yester.,,12,人死亡者当中有,6,名是,ONGC,员工（,5,名管理人员和,1,名工人）；,1,名来自,SCI,（与,ONGC,服务的船舶承包商），,1,名是,Charlie Yester,平台的人员4,,事故图片,,Some photos taken from,Transocean,'s,jackup,drilling rig "Randolph Yost" that was jacked up very close to the Bombay High North (BHN) platform and the Noble "Charlie Yester",jackup,.,,一些来自,Transocean,钻井平台拍摄的、离,Bombay High North (BHN) platform and the Noble “Charlie Yester”,非常近距离的照片,,,Both the BHN and the "Charlie Yester" were completely destroyed and melted into the water.,,BHN,和,“Charlie Yester”,完全被毁坏并熔化入水中,5,,事故图片,,The dive support / multi use vessel ",Sagar Surakshas," that is on fire is the vessel that started the whole chain of,diasterous,events by making contact in heavy seas with the BHN production and processing platform,,具有潜水和多用途功能的,Sagar Surakshas,在火海中，正是这艘船引致后面,BHN,的生产和作业平台一连串的灾难事件。

6,,案例分析,,Location:,Mumbai,offshore, India,,,位置：印度孟买外海,,Fire Event: 27 July 2005,,,火灾事件：2005年7月27日,,A vessel collided with the offshore,Mumbai,High North platform, 160 km west of the,Mumbai,coast, causing a major fire, completely destroying the platform and resulting in 11 deaths and 11 others missing.,,Fire duration = 2 hours,,,一艘船与位于孟买以西160,km,处的,BHN,平台发生碰撞，引发大火，火灾彻底摧毁了平台并导致11人死亡和11人失踪火灾持续了两小时,7,,案例分析,,Fire Damage: Complete collapse of the platform,,,火灾损失：平台完全倒塌,,Construction Type:Steel,,,结构类型：钢,,Fire Resistance:No information available,,,消防措施：未得到有关信息,,Function:Oil and natural gas processing platform,,,功能：原油和天然气处理平台,,Dimensions: 7,storeys,,,平台层数：7层,,8,,案例分析,,The Platform,,The,Mumbai,(or Bombay) High field is India's largest offshore oil and gas field. The,Mumbai,High Basin is 75 km long and 25 km wide, located in the Arabian Sea about 160 km west of the,Mumbai,coast. The oil and gas field is divided into the north and south blocks and has been operating by the Oil and Natural Gas Corporation (ONGC) since 1974.,,The,Mumbai,High North (MHN) platform, a 30 years old 7-,storey,steel structure, was an oil and natural gas processing complex which had a capacity of 80,000 barrels per day of crude production (see Figure 1). It was connected to an unmanned NA drilling platform, the BHF platform with residential quarters and the WIN platform also with residential quarters. All these were interconnected by bridges. The MHN facility separated oil and gas carried by risers from the nearby wells, below the NA and BHF platforms, and sent them onshore by separate undersea pipelines.,9,,案例分析,,平台简介,,,,Mumbai,High,油田是印度最大的海上油气田。

Mumbai,High Basin,盆地长,75,公里，宽,25,公里，位于孟买沿海,160,公里的阿拉伯海油气田分为南北两个区块，从,1974,年开始一直被石油和天然气公司,(,ONGC),运营Mumbai,High North(MHN,或,BHN),平台是一个已经使用了,30,年的,7,层钢结构的平台，油气处理能力每天八千桶原油它与一个无人钻井平台，以及有生活区的,BHF,、,WIN,平台通过栈桥相连BHN,平台的作用是分离来自,NA,和,BHF,平台的油气，然后将它们分别用海底管道送至陆上10,,案例分析,,,,The,Mumbai,High North platform is at the middle of the photo (Photo: ONGC),,位于图中间的平台就是,BHN,平台,,11,,案例分析,,The Fire,,On 27 July 2005, a multi-purpose support (MPS) vessel collided into the MHN and ruptured a riser carrying oil from the undersea wells to the MHN facility at 04:05 India time, resulting in the break out of a major fire. At that time, the MPS was engaged in a medical evacuation operation in which an injured cook aboard was being transferred to the MHN for medical treatment.,,However, in heavy wind and high tide, the MSV reportedly lost control and collided with a riser. The riser broke and crude oil started leaking. The oil caught fire and gas, under high pressure, began to escape. It was reported that a ball of flame fell on the MHN and there was explosion on the platform.,,,12,,案例分析,,,The fire was so intense that the MHN was abandoned in accordance with the disaster,mangement,plan of offshore operators. Within two hours, the whole platform collapsed into the sea with a few foundation piers left (see Figure 2). A,Pawan,helicopter positioned on it was also lost.,,The MPS also caught fire and was towed away by another multi-purpose support vessel but sank on 1 August 2005, about 12 nautical miles from the,Mumbai,coastline.,,A total of 384 personnel were on the MHN complex, the two MPS vessels and an offshore oil rig Noble Charlie Yester at that time. Among them, 11 people died and 11 others were reported missing. The rest were rescued by a combined force of offshore supply vessels, helicopters, and vessels of Indian Navy and Coast guards.,,The flow of oil and gas from the affected wells was shut down through the sub-surface safety valves, preventing a large area of pollution.,13,,案例分析,,2005,年,7,月,27,日，一艘多用工作船,(,MPS),运送一名受伤随船厨师到,BHN,进行治疗;,,在大风、大浪的环境条件下，印度时间,4,点,15,分，,MPS,据说失去了控制与,BHN,平台发生碰撞。

导致一根从水下井口输送原油到平台设施的立管破裂，破裂处引发火灾;,,原油着火并散发出有毒气体，并在高压下溢出据报道一个火球落在,BHN,上，进而引发平台爆炸14,,,由于火势剧烈，根据海上作业者事故管理计划，作业人员撤离平台2,个小时内，整个平台坍塌到海里，仅留下一些基础管架在海面一架停留在平台上的,Pawan,直升机也在事故中被毁MPS,也被引起大火，并被另外一条多用工作船拖走，但最终于,2005,年,8,月,1,日沉没在距离孟买海岸线,12,海里处15,,,当时共有,384,人在,BHN,及周围的两条多用工作船、一个海上钻井平台,Noble Charlie Yester,上其中,11,人死亡，,11,人失踪，其余人被海上供应船、直升机和印度海军、海岸警备队的船只救起受影响的井口已经通过井下安全阀关闭，阻止了更大的污染16,,案例分析,,The Damage,,,The MHN was completely destroyed in the 2005 fire, along with a helicopter positioned in it. The multi-purpose support vessel causing the fire sank few days later.,,Analysis,,The incident shows the catastrophic consequence of an oil rig fire. The unlimited supply of fuel and oxygen normally contribute to the extremely rapid growth and spread of the fire.,,Under normal practice, a multi purpose support vessel can only engage an oil rig under normal weather conditions. In addition, the incident vessel was a dynamically positioned vessel with computer-controlled thrusters which could remain in one position on the sea. It was still not clear why the vessel went so close to the MHN, went out of control and hit the riser.,,17,,案例分析,,BHN,被完全毁坏，以及一架停留在平台上的直升机，引起火灾的多用工作船几天以后沉没,,事故显示了石油平台火灾可怕的后果，不受限制的燃料和氧气市的火灾迅速发展和蔓延。

在正常作业情况下，一条多用工作船仅能在正常天气条件下为一个石油平台服务，事故传播是一条有动力的，并由计算机控制的能够在海上及定位只停留该船过于靠近,BHN,，,并失去控制桩基立管的原因目前尚未清楚18,,案例分析,,,19,,谢谢,20,,。