Adam Firdaus Rayhan Email & Phone Number

Responsibilities:• Prepare installation analysis and documents prior to project execution:- Pipeline Installation/ Pipelay Analysis- Subsea Spool and Riser Installation Analysis- General Lifting Analysis• Prepare and review Detailed Engineering Design calculation and documents:- Pipeline Wall Thickness Verification Analysis- Pipeline On-Bottom Stability Analysis- Pipeline Route Selection Study- Pipeline Cathodic Protection Calculation- Existing Subsea Cable and Pipeline Integrity Check• Prepare material take-offs prior to project execution.• Assist drafter related to project technical drawings.• Cooperate and communicate with client and other project participants.Project Experience:• EPCI Contract for PHE ONWJ West Area Pipeline Project (FSO Arco Arjuna Phase-1) - Pertamina Hulu Energi ONWJ and PT. Hafar Daya Konstruksi - 2022• Pipeline Replacement Project 6" MOL UYA-UA and 10" MOL UA-UWJ - Pertamina Hulu Energi ONWJ and PT. Depriwangga Engineering - 2022• EPCI Contract For PHE ONWJ West Area Pipeline Project (8" MOL EC-EPRO) - Pertamina Hulu Energi ONWJ and PT. Hafar Daya Konstruksi - 2022• EPCI Contract For 16” MOL LPRO-NGLJ Pipeline Project - Pertamina Hulu Energi ONWJ and PT. Hafar Daya Konstruksi - 2023• EPCI Contract for Central Area Pipeline Replacement Project - Pertamina Hulu Energi OSES and PT. Hafar Daya Konstruksi - 2023• EPCI Contract for Titi Gas Development Project - Pertamina Hulu Energi OSES and PT. Hafar Daya Konstruksi - 2023• EPCI Contract for Full Replacement of 35KV Subsea Cable Pabelokan to Zelda-P - Pertamina Hulu Energi OSES and PT. Voksel Electric Tbk. - 2023• SPM-2 Replacement Project - Brunei Shell Petroleum Co. Sdn. Bhd. and PBJV Group Sdn. Bhd. - 2023-2024• Replacement Plan for 16" Riser RAMA-B - GITA-A - Pertamina Hulu Energi OSES and PT. LAPI ITB - 2024

Responsibilities:• Assisted Offshore Construction Superintendent to monitor the installation aids and project consumables.• Conducted thorough inspections of contractor and subcontractor equipment before mobilization and demobilization, ensuring compliance with safety standards and project requirements.• Coordinated with foreman rigger, welder and subcontractor crew to execute project on site.• Applied technical expertise to perform essential calculations supporting construction activities, including lifting analysis, rigging design calculations, and davit analysis for pipeline alignment and shifting operations.• Oversaw diving and ROV activities.• Monitored daily progress percentage and report.Project Experience:EPCI Contract for Central Area Pipeline Replacement Project - Pertamina Hulu Energi OSES• 16" Pipeline Subsea Spool Tie-In at Titi-A End Side.• 12" Pipeline Subsea Spool Tie-In at Yvonne-A End Side.

Jakarta, Indonesia

Responsibilities:Prepare and review engineering calculation and documents:• Pipeline Preliminary Design (Offshore and Onshore)• Pipeline On-Bottom Stability Analysis• Pipeline Free Span Analysis