Abstract
Abstract ADNOC Sour Gas has experienced plant trips in the past, production loss as a result of avoidable actions resulting from component failures. These trips, in many instances were a result of a single point of failure. Single point of failures (SPoF) are specific common sections of piping and equipment which if failed or leaked in service can immediately shutdown the entire operating unit or the production facility as a direct impact or cascaded effect without giving the operator adequate time to respond and control the situation. Large size gas processing plants such as ADNOC Sour Gas Facility with two gas trains operating simultaneously are designed to run uninterrupted for 4 to 5 years between 2 planned major turnaround cycles. By design and per specification, there are number of sections in the plant that have no stand by or any redundancy available in design. Due to this design of common sections or often defined as single components, it is not feasible to repair equipment, piping or instrumentation due to integrity issues while they are in operation. Any rectification work on these common systems (mechanical, electrical, instrumentation or structural) can lead to shutting down the entire gas plant & facilities. This planned or unplanned shutdown can lead to enormous production loss. To alleviate or minimize the consequences from these single common plant section events and improve the reliability and availability of the overall facility, management of these common sections is paramount for the business. ADNOC Sour Gas has successfully utilized the lesson learnt and identified all potential SPoF in the facility and developed SPoF management plan. In order to ensure higher reliability of Operations, it is important that SPoFs are minimized or managed to avoid downtime. The concept of SPoF is very effectively utilized in IT industries, Networking and supply chain. Sour gas has successfully applied the concept for Oil & Gas Operations.
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