In line with its Headquarter's commitment to sustainable environmental practices and Global Gas Flaring Reduction (GGFR) Partnership initiative, Total Exploration and Production in Nigeria (TEPNG) identified the Ofon field as a major contributor to its gas flaring volumes and responded by initiating the Ofon Phase 2 Project. This was also a key step toward realizing the Company's plan, at Group level, to reduce the flaring of associated gas and greenhouse-gas emissions, on operated sites.Ofon is an offshore field that came on stream in 1997, and is located some 180 kilometers from Port Harcourt (about 65 kilometers from shoreline), South of Nigeria, in 40 meters of water depth. It is operated by Total E&P Nigeria Limited in a Joint Venture agreement with NNPC having 60% ownership and Total 40%. In its first phase, all associated gas was flared with minor fuel gas usage. Main objectives of OFON 2 projects are: y Stop routine flaring by the end of 2014, y Increase oil reserves and production from 25 to 65 kbopd, y Monetize gas through the Nigeria LNG plant and Domgas via Amenam facility, y Inject water to repressurize the reservoirs to ensure good sweep efficiency and increase oil recovery.The Company's flare down objective in Ofon field was achieved on 15th December 2014, accounting for an immediate 10% cut in the overall volume of gas flared by the Group's Exploration & Production activities. The start-up of Ofon Phase 2 had made it possible to avoid the flaring of one million standard cubic meters of gas per day under normal operating conditions. This reduction in gas flaring is estimated to have led to reduction of greenhouse gas emissions from 80ktCO 2 equivalent to less than 8ktCO 2 equivalent in the Ofon field.The project has also complied with Nigerian law of zero-flaring in oil and gas facilities. The Company is by this singular effort actively implementing the World Bank's initiative to eliminate all routine flaring of associated gas by 2030.As part of the Ofon phase 2 project, the new 70 kilometers pipeline had made it possible to pipe the gas to the OML 99 Amenam offshore gas hub, from where it is exported to the Nigeria LNG Plant at Bonny.A further 24 new wells scheduled to be drilled on Ofon field will make possible to market 3 million cubic meters of gas per day.Other significant achievements by this project include improved waste heat recovery and produced water management as well as the high level of local content in engineering and fabrication of the facilities including the Living Quarters built almost exclusively by local contractors for the first time ever in Nigeria.All activities have been conducted with the highest demand on safety and respect for the environment. Project achieved outstanding performances with more than 4.1 millions man-hours offshore without LTI including 1.5 million man-hours in SIMOPS.

This paper describes an approach adopted in monitoring Safety Critical Barriers (SCBs) associated with oil and gas production in Total's AKPO Floating Production and Storage Offloading (FPSO) facility located in OML 130 offshore Nigeria. The scenario-based Technological Risk Assessment study of AKPO FPSO provides a catalogue of major risks, with risk reduction measures developed into standard safety barriers and in some cases incorporated into existing barriers to improve their reliability. There are a total number of 366 SCBs being monitored using the approach described in this paper. The status of SCBs described as"Very Good", "Good", "Fair"or "Poor"is determined by systematically aggregating the test and maintenance results of relevant equipment items (functional locations), as well as results from audit checks of operational and management activities of the SCBs. The status of SCBs, so determined, is quantified and used to determine the risk portrait of the installation. Over 8,500 functional locations are linked to barriers based on their potential to contribute towards the control of one or more of the fourteen major accident scenarios identified from the major risk study. Test and maintenance records from UNISUP (Unified Information System for Upstream) are exported to a visual risk assessment tool for aggregation, based on a pre-set logic, to determine the status of SCBs that are dependent on equipment items. The application of this methodology enables the timely identification of barrier defects at the level of functional locations for a given safety critical equipment. The visual risk management tool deployed for the implementation of this process has proven to be of great benefit: i) diagrammatic view of potential accident path; ii) quick identification of failing barriers; iii) estimation of extent of failures in barriers; iv) understanding of the criticality of barriers in relation to a potential accident path; v) dynamic profiling of risks based on changes in barrier status. The implementation of this methodology contribute to savings in resources spent on safety inspections and audits by leveraging the information provided on the status of the barriers to determine the best approach and areas to assess during such exercises. In addition, records such as number of unavailable barriers per period, frequency of barrier failures etc can be obtained and used as metrics to determine Integrity Management performance on an operating facility.

The outcome of the Technological Risk Assessment is the major risk register that contains all the major incident scenarios including the top ten scenarios and their corresponding barriers towards prevention, control & mitigation of potential consequences. The expected result of an effective Barrier Risk Management is to reduce and or minimize the possibility of a major process safety incident happening due to weaknesses developed in these barriers and ensuring that all the necessary mitigation and mechanisms are robust enough and in place should an incident happen. Are our Barrier risk assessment for process safety accidents properly assessed with adequate barriers defined to prevent the occurrence of major incidents? This means that, the assurance of Process Safety is defined on the basics that all our Safety Critical Barriers (SCBs) are clearly understood, by knowing what our critical controls are, assessing and monitoring their health status in our day-to-day operations towards ensuring that they are functionally available on demand to prevent, mitigate and control process safety incidents. This Paper in detail, will describe the operationalization of the Bow Tie Barrier Risk management, beginning with the Identification of Safety Critical Barriers for operating plants in an integrated approach, defining potential threats from major accident scenarios, its effects and their barriers in one holistic view with the BowTie, act as a line of sight for individual barrier performance management, action plans and improvement. Converting the BowTie from a static to a dynamic barrier management tool by identifying any missing or possible degraded barriers and manage corrective actions implementation, plug in other operational elements such as incidents, audits, inspections, change management and safety and inspections information to create relationship between the barriers and any operational disturbances.