Abstract
The process of petroleum exploration and exploitation is a crucial activity in the fulfillment of energy needs in the world. The process of petroleum exploration and exploitation is currently centred on shallow water regions in the continental shelf. In the process of petroleum exploration and exploitation in shallow waters, the structure of which is commonly used is the jacket structure. In Southeast Asia there are about 1300 platforms, of which 80% is over 20 years old. When the platform has reached its operational limit, according to the ministerial regulation of ESDM number 1 year 2011 The platform must be decommissioning in accordance with existing technical standards. In the process of demolition, there are certainly risks and hazards that can interfere with the process of decommissioning. It is necessary to do a risk analysis to map the risks that can occur while preparing the mitigation steps. In this study, risk analysis arel conducted by determining the activity that has a significant degree of hazard where it is concluded that activities that have a significant risk level are activities related to construction, lifting, maintenance, well service, and maintenance. From each activity that has a significant hazard level, there was a process of determining the cause of risk using the Fault Tree Analysis (FTA) method while determining the barrier that serves to prevent a risk occurring. The next is to determine the impact that can be inflicted from risk by using the Event Tree Analyis (ETA) method while determining the barrier that serves to prevent and reduce the impact that occurs when there is a peril. These two FTA and ETA diagrams are combined to create a Bowtie diagram to explain in detail the risk management performed at each stage of the decommisiioning process.
Highlights
The process of exploration and exploitation of oil and gas is a very important process when the world's energy needs are at a very high level
There are more than 7500 installations of oil and gas where most of these installations are in the shallow waters surrounding the continental shelf of 53 countries where 40 of them produce significant amounts of oil and gas [1]
Other Data obtained from SKK MIGAS in 2019 is that Indonesia itself has 613 offshore reservoir, which 54.65% of them are over 20 years old and 24.65% are in the age between 16-20 years, besides there are six platforms around the sea of Java that is ready to be disabled [2]
Summary
The process of exploration and exploitation of oil and gas is a very important process when the world's energy needs are at a very high level. The process of decommisioning or platform removal process is a procedure that is currently required to all companies that have been celery passed the most common working step is to comply with the platform in Indonesia through the Ministerial regulation of ESDM number 1 year 2011. The demolition of structures that are in the area of shallow water, the reproduction of existing structures is Jacket. The process of project work in the offshore area is certainly vulnerable to the risk of accidents that could harm the safety of work. A work accident can be interpreted as an activity that can cause harm during the ethical process. Limacompressor (LCOM) Wellhead Platform is an offshore structure with jacket structure type. The jacket structure that supports the platform has four legs and consists of three decks This structure is functioning as an oil and gas production facility where the platform has been installed since 1973-1974. LCOM Well Platform has a period of operation until the year 2026. [6]
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