基于卫星链路扩延海洋平台安全网的研究应用

海上油气田平台之间传输关停报警信号在采用公共协议转换的方式时，特别是基于卫星链路的情况下，信号传输环节多，可靠性差。为了提高可靠性，东海某项目采用安全网扩延方式。在发生油气泄露和火灾爆炸等危险状况时，存在上下游物流关系的平台之间进行关停连锁，将安全网络进行扩延，将各个平台的安全系统连接起来，减少中间环节，使各个平台之间实现具有相同安全等级的生产操作，可靠性得到了有效提升。通过卫星链路扩延安全网，能够确保在发生危险状况时，及时进行关断，确保危害不蔓延。结合限制开发成本的要求，需要通过卫星链路执行安全关停连锁的工况也逐渐增多，实例证明基于卫星链路扩展安全网的技术具有极高的可靠性，值得推广应用。

Research on Expanding Marine Platform Safety net Based on Satellite Link

When the shutdown alarm signal is transmitted between the offshore oil and gas field platforms by means of public protocol conversion, especially in the case of satellite links, there are many signal transmission links and poor reliability. In order to improve the reliability, a project in the East China Sea adopts the extension method of safety net. When dangerous situations such as oil and gas leakage and fire and explosion occur, platforms with upstream and downstream logistics relations are closed down. Extend the safety net, connect the security system between each platform, reduce the intermediate links, so that each platform has the same level of security between the production operations.The reliability has been effectively improved. By extending the safety net through satellite links, we can turn them off in time to ensure that the hazard does not spread when dangerous situations occur. Combined with the requirement of limiting development costs, the conditions for implementing the security shutdown chain through satellite links are also increasing. The example proves that the technology based on satellite link extended safety net has high reliability and is worthy of popularization and application.