Process Safety Xodus Group provides world-leading consultancy support, ranging from individual studies to a fully integrated process safety assurance service. Process safety is a key area in the upstream and downstream oil and gas industries. Prevention of loss of containment or equipment damage is critical given the outage and capital costs, and the escalation consequences of loss of containment. There is no standard definition of process safety in the industry. Xodus sees process safety as being all of the elements of a process plant aimed at avoiding adverse deviations that could create equipment damage or loss of containment. We consider process safety to be a key element of the fault tree side of bow tie analysis. Working with mature assets we help to manage process integrity and process safety. For new field developments we provide assurance that process safety requirements are delivered. Overall process safety is achieved by having well designed plant, clearly defined procedures and competent people all working effectively. Process integrity information we deliver: Basis of designProcess safeguarding design philosophiesProcess safeguarding flow schemesAs-built Piping and Instrumentation Diagrams (P&IDs)As-built cause and effectsAlarm and trip schedulesLoop diagramsLine listsSafe operating envelopesOperating proceduresAlarm response proceduresProcess emergency response proceduresProcess modelsProcess calculationsHigh-Integrity Pressure Protection System (HIPPS) dossierRegister of safety related devicesLocked Open / Locked Closed (LO / LC) registersHazardous / non-hazardous systems reviewEquipment data sheetsRelief and blowdown reviewContainment performance standards and verification schemes.We undertake: Critical assurance activitiesHP / LP interface reviewHazard Operability (HAZOP) / process hazard analysisDesign review / variance analysisLayers of Protection Analysis (LOPA)Safety Integrity Level (SIL) assessmentTest interval analysisHIPPS formal safety assessmentsSafeguarding reliability analysis / Quantitative Risk Assessment (QRA)BS / EN / 61511 management of functional safetyVerification of process containment safety critical elementsAlarm prioritisation reviewHuman factors reviewProcess safety auditCommissioning and function testing / benchmarking.Critical support processes:Management of changeCompetence assuranceProcess simulator developmentOperator response training.