Sofien El Ahmadi

Responsible of the following activities in the joint venture formed by Doris Group, Caspy Engineering and ILF Consulting Engineers (for the client North Caspian Operating Company): • Coordinated with technical team members in multiple regions (Kazakhstan, France, UK, UAE) • Assisted with project planning and scheduling across different time zones. • Monitored and tracked technical progress. • Communicated technical status to project stakeholders. • Performed the troubleshooting of technical issues. • Supported technical team members with problem resolution. • Facilitated technical meetings and presentations. • Ensured deliverables are completed on time and to quality standards in a global context. • Managed technical documentation and project artifacts.

Enhanced Doris Group capabilities in production availability assessments (“RAMS studies”) Responsible of the following activities: • Determination of functional diagrams (using Reliability Block Diagrams) • Elaboration of the failure modes, effects and criticality analysis (FMECA) • Selection of reliability and operational data • System modelling and prediction/evaluation of availability performances using Petri nets and Monte-Carlo simulation • Comparison of alternatives/configurations and optimization of production performances Also involved in different safety reviews (HAZOP, HAZID, PHA)

Part of the team dedicated to support and advise the Senegalese Ministry of Petroleum and Energy in offshore Oil & Gas on-going developments (Sangomar, Grand Tortue Ahmeyim, Yakaar Teranga): • Project execution follow-up (schedule, progress, interfaces review between main contractors) • Technical third-party review and alternatives proposal, project economics analysis • Local content development opportunities (with several surveys performed in Senegal) • Basic engineering subsea studies: EPCI cost estimate, call for tender preparation, offshore works description, interface definition studies

Involved as Functional safety expert at Doris (IEC61508/IEC61511) in High Integrity Pressure Protection System (HIPPS) design for Total E&P, Perenco, Shell. In charge of the following activities: • Risk Assessment (using LOPA, Risk Graph, Event Tree) ------- Evaluation of consequences based on Company criteria (Safety, Environment, Asset, Reputation, etc) ------- Evaluation of unwanted event frequency (Blocked Outlets, Depacking Scenarios, Overfills,etc..) ------- Determination of additional prevention barriers and/or mitigation measures ------- SIL allocation (i.e. definition of the risk reduction performance to be achieved by additional measures to make the risk acceptable) • Reliability Analysis ------- Modelling of Safety Instrumented Systems (SIS, HIPPS) on GRIF Fault Tree ------- Reliability calculation ------- Determination of the redundancy requirements to match the SIL target ------- Definition and optimisation of the test policy to match the SIL target • Participation to the HIPPS Design Finalisation ------- Specifications and datasheets for the HIPS components ------- Test procedures preparation Took part of the following projects at different phases since January 2011 (Conceptual, pre-FEED, FEED, Detail Engineering): • ZAWTICA (TotalEnergies E&P, Myanmar) • IKIKE (TotalEnergies E&P, Nigeria) • ZINIA Phase 2 (TotalEnergies E&P, Angola) • BULIISA (TotalEnergies E&P, Uganda) • ICHTYS (TotalEnergies E&P, Australia) • MOHO NORD (TotalEnergies E&P, Congo) • SANAGA (Perenco, Cameroon) • BONGA (Shell, Nigeria) • BLOCK 20/21 (TotalEnergies, Angola) • TILENGA (TotalEnergies, Uganda) • FSRU Le Havre (TotalEnergies, France)

In charge of the following activities for SURF Department: • Screening studies for subsea field development • Subsea Control System & Umbilicals design ------- Definition of the umbilical and control system architecture ------- Screening and selection of the different possible configurations ------- Umbilical and control system philosophy ------- Umbilical sizing (line sizing and cross-section arrangement) ------- Block diagrams and distribution schematics • Spools / Jumpers Design ------- Definition of the structures geometry based on in-place analyses and seabed profiles ------- Outline handling procedures for loadout and offshore installation of subsea structures ------- Lifting calculation notes for subsea structures on ORCAFLEX software • Flow assurance ------- Steady state analyses using OLGA software ------- Dead oil circulation and Preservation Sequence studies ------- Subsea methanol and chemical injection line sizing • Definition of interface battery limits and data between packages • Preparation of risk assessments (using risk graph, HAZID or FMECA methods) Took part of the following projects at different phases since January 2011 (Conceptual, pre-FEED, FEED, Detail Engineering): • Moho Nord and Moho Phase 1Bis (Total E&P, Congo) • Kaombo (Total E&P, Angola) • Zinia Phase 2 (TOTAL E&P, Angola) • West Hub (ENI E&P, Angola) • East Hub (ENI E&P, Angola) • Dalia Ph.3 and Ph.4 (Total E&P, Angola) • CLOV (Total E&P, Angola) • Malange (Total E&P, Angola)

In charge of Block 17 engineering services for Installation, Transportation and Retrieval of Subsea Equipment for Total E&P Angola: • Elaborated lifting calculation notes considering the envelope dimensions (using ORCAFLEX) • Demonstrated the feasibility from the load-out to the subsea deployment/connection (i.e. outline handling procedures for loadout and offshore installation) • Produced the construction drawings for each well jumpers (isometric, general arrangement, rigging, seafastening, lifting procedure for subsea deployment and installation) • Verified on the yard that the jumpers are fabricated as per our drawings • Supervised the preparation of loadouts on the fabrication yard (rigging / seafastening checks) • Handled all management tasks (activity reports, cost, timesheets, etc…) Also took part of the subsidiary development dedicated to the Oil & Gas Angolan market: • Enhanced and developed further the capabilities of local engineers and draftsmen. • Managed the engineering team involving local engineers and the drafting office on various projects (Total E&P Angola, Heerema, Chevron, Eni E&P,...) • Coordinated activities with Doris Engineering project teams (Paris/Houston). • Implemented quality management system (QMS) within the subsidiary.