WELAPTEGA operates globally with clients and projects in just about every region of the offshore oil and gas industry.

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4 WELAPTEGA operates globally with clients and projects in just about every region of the offshore oil and gas industry. Our Valued Clients:

5 OPERATING WORLDWIDE 20 Years experience in the United Kingdom, Norway, Canada, Gulf of Mexico, West Africa, Australia, South East Asia, and India.

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7 FITNESS FOR PURPOSE RISK-BASED ENGINEERING 1. IDENTIFY & 2. PROGRESSIVE 3. ASSESS RISKS: INSPECTION: RISK-BASED ENGINEERING ANALYSIS: Review of design, operations and maintenance records. Identification of most probable mooring failure mode(s). Visual and quantitative inspection of mooring components. Fatigue assessment for aged mooring components. Present day operational status. Assess the remaining life of mooring system.

8 Identify and assess risks

9 IDENTIFY AND ASSESS RISKS ORIGINAL DESIGN DOCUMENTATION: Safety factors and corrosion allowances. Metocean conditions. OPERATIONS RECORDS: Severe weather events experienced. Excursions, Line Tensions. MAINTENANCE AND INSPECTION RECORDS

10 IDENTIFY AND ASSESS RISKS TRAINED MOORING INSPECTORS, WORLDWIDE EXPERIENCE Risk = Consequence of Failure/Deterioration and Likelihood of Occurrence (Oil & Gas UK, Mooring Integrity Guidance). Experience observing degradation in all types of mooring systems in wide variety of regions. Involvement in industry groups, including FPS Mooring Integrity JIP and FPSO Research Forum Mooring Integrity User Group. APPLY PAST EXPERIENCE WITH SIMILAR ASSESTS AND MOORING. IDENTIFY RIS KS TO FOCUS THE INS PECTION.

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12 PRINCIPLES OF PROGRESSIVE INSPECTION INSPECTION FREQUENCY SET AT INTERVALS BASED ON RISK ANALYSIS. Or annual inspections focusing on 20-25% of mooring lines. IDENTIFY DEGRADATION MECHANISMS AND EFFECTS AS EARLY AS POSSIBLE IN LIFE. MOST FAILURES OCCUR EARLY OR LATER IN LIFE SPAN OF AGING MOORING SYSTEMS. Focus ongoing inspection accordingly.

13 MOORING FAILURES vs PERCENT OF DESIGN LIFE Based on WELAPTEGA database of all currently in-service floating production units that have experienced mooring failures.

14 AGE vs AGING AGING IS NOT ABOUT TIME IN SERVICE. Aging is a process change over time. AS SYSTEMS AGE WE MONITOR CHANGES OVER TIME. BASE-LINE INSPECTIONS PROVIDE AN EARLY LIFE CHECK-UP: Identify manufacturing defects. Identify installation damage. Identify how/ when damage occurred and inform warranty issues. Determine Year 0 manufactured chain dimensions to measure future corrosion and wear rates

15 PROGRESSIVE INSPECTION High Definition 3D Video Cleaning Systems High Definition 3D Video Chain Measurement Rope Measurement 3D Modeling Photogrammetry

16 GENERAL VISUAL INSPECTION HD3D VISUAL INSPECTION OF ENTIRE MOORING SYSTEM TO IDENTIFY OBVIOUS PHYSICAL DAMAGE.

17 2D GENERAL VISUAL INSPECTION OF MOORING LINES

18 FOCUSED VISUAL INSPECTION FOCUSED VISUAL INSPECTION OF HIGH RISK AREAS USING HD3D VIDEO TO IDENTIFY DEGRADATION OF COMPONENTS (WEAR, CORROSION, BENDING, PITTING, MICROBIAL CORROSION, ETC.) Turret Interfaces Mooring Connectors Seabed Touchdown Zone REQUIRES REMOVAL OF MARINE GROWTH AND OTHER VISUAL OBSTRUCTIONS FROM HIGH RISK COMPONENTS.

19 3D HIGH DEFINITION VISUAL INSPECTIONS Fairlead pocket abrasion Pitting corrosion Preferential corrosion at flash butt weld Heavy Microbial Corrosion

20 MEASUREMENT DEPLOYMENT OF SPECIALISED INSPECTION SYSTEMS TO QUANTIFY DEGRADATION OF COMPONENTS. Chain Measurement Systems (Optical/ Mechanical) Wire Rope Inspection Systems (Optical/ Magnetic) Fibre Rope Inspection Systems (Optical)

21 CHAIN MEASUREMENT CHAIN MEASUREMENTS TO DETERMINE CORROSION/ WEAR RATES. FOCUS ON HIGHEST RISK AREAS: Turret Region (highest mooring tension) Touchdown zone (highest relative motion between chain links, microbial corrosion/erosion)

22 CHAIN MEASUREMENT: TOOLS Optical measuring tools Mechanical measuring tool

23 3D HIGH DEFINITION VISUAL INSPECTIONS: VIDEOS

24 WIRE/ FIBRE ROPE INSPECTION 360- DEGREE VISUAL INSPECTION Removal of marine growth (HP Jetting, rollers, brushes) Abrasion and cracking of rope sheathing. Broken Strands and separation of strands. DIAMETER MEASUREMENT Identify changes in rope diameter for both sheathed and unsheathed wire. Common Failure Region - Adjacent to bend restrictors. MAGNETIC INSPECTION (WIRE ROPE) Identity location of broken strands and quantify corrosion levels.

25 ROPE MEASUREMENT SYSTEM (RMS) Four cameras viewing 360 degrees of rope surface. HP Jetting Rollers Brushes Magnetic Flux Leakage (MFL) + Laser Scanner

26 ROPE MEASUREMENT SYSTEM (RMS): VIDEO

27 SHEATHED WIRE ROPE DAMAGE IDENTIFIED

28 ROPE MEASUREMENT SYSTEM (RMS): VIDEO

29 3D MODELING DETAILED GEOMETRIC ANALYSIS AND FINITE ELEMENT ANALYSIS OF DAMAGED OR DEGRADED COMPONENTS: Installation damage. Impact damage Wear and abrasion. Accelerated Corrosion, pitting corrosion

30 DAMAGED WELLHEAD MODEL

31 CORROSION UNDER RISER INSULATION

32 PIPELINE DAMAGE

33 PHOTOGRAMMETRIC 3D MODELING DUAL HIGH RESOLUTION DIGITAL STILLS CAMERA VARIABLE LED LIGHTING PHOTOS ARE PROCESSED INTO 3D MODELS Photogrammetric system: Camera and Viable LED Lighting

34 ACCELERATED CHAIN CORROSION Microbiologically Influenced Corrosion (MIC) at the touchdown zone.

35 3D MODEL GENERATION Camera position and 3D point cloud of corroded chain.

36 GEOMETRIC ANALYSIS Cross-Section 8 Area = 7828 mm 2 Cross-Section Locations Nominal Cross-Section Area of 108mm Chain = 9159mm 2

37 CHAIN LINK DEGRADED CAPACITY Analysis of material integrity and residual capacity of critical components. Based on WELAPTEGA inspection results and FEA. Finite Element Analysis (FEA) for chain components. In-house analysis of damaged wire rope.

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39 MFPA MOORING FITNESS FOR PURPOSE ASSESSMENT Mooring Fitness for Purpose Assessment (MFPA) is a risk-based engineering process to determine the current physical condition and the residual capacity of offshore mooring systems. The MFPA process requires the review and integration of historical physical, operational and environmental data with detailed physical inspection results to evaluate the expected future performance of mooring systems. 1. IDENTIFY & ASSESS RISKS 2. PROGRESSIVE INSPECTION 3. RISK-BASED ENGINEERING ANALYSIS

40 MFPA METHODS AND TOOLS ASSESSMENT OF DESIGN VS EXPERIENCED METOCEAN CONDITIONS. ASSESSMENT OF MOORING PERFORMANCE STANDARDS. IDENTIFICATION OF MOORING RISKS. ANALYSIS OF VESSEL/ MOORING DYNAMICS AND CAPACITY USING: Orcaflex - dynamic analysis of mooring motions and tensions. Wadam vessel wave response modeling. Abaqus linear and non-linear Finite Element Analysis (FEA). BPP-SoftCore structural response of multi-layer wire ropes.

41 MFPA OUTCOMES MOST LIKELY FAILURE MODES FATIGUE ANALYSIS MAXIMUM OPERATIONAL CONDITIONS (ULS) MAXIMUM SURVIVAL CONDITIONS (ALS) ESTIMATION OF REMAINING LIFE MAINTENANCE AND MONITORING FREQUENCY AND RECOMMENDATIONS

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43 WE FOCUS ON A VARIETY OF CLIENT NEEDS INCLUDING: PRESENT CONDITION OF MOORING FUTURE PERFORMANCE ASSESSMENT IN SUPPORT OF FIELD LIFE EXTENSION. RECOMMENDATIONS TO OPTIMIZE MOORING INTEGRITY MANAGEMENT PROGRAMS. CLASS/ REGULATORY COMPLIANCE ALIGNMENT WITH OIL & GAS UK MOORING INTEGRITY GUIDELINES AND FUMA INSURANCE GUIDANCE.

44 CONTACT Visit Our Website at Anthony Hall CEO, Founder Welaptega Marine Limited T. +1 (902) Hisham Sheriteh Director of Business Development Welaptega Marine Limited T

45 SUPPORTING SLIDES

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47 PRE-INSTALLATION (IN AIR) BASELINE Focus on chain and connecting components of higher-risk Use same technology that will be used to measure components in service Chain 1 Chain 2 Chain 3 Chain 5 Chain 5

48 PRE-INSTALLATION (IN AIR) BASELINE 3D MODELING OF CONNECTORS/ COMPONENTS Photographs can be taken and processed later if required CHAIN MEASUREMENT Can be done while loading chain onto anchor handler (loader providing tension on opposite end for links to seat properly). Measure links in the same regions that will be measured while in service

49 POST-INSTALLATION (IN WATER) BASELINE GVI OF FULL MOORING SYSTEM DETAILED INSPECTION OF: Components often damaged during installation. Components needing to be at operating tension for baseline measurement. FIBRE AND WIRE ROPE INSTALLATION DAMAGE.