DHAVALKUMAR KHALASI
Mechanical Engineer
Surat
Summary
Results-driven Mechanical Commissioning and Maintenance Engineer with 9+ years in oil and gas. Experienced in pre-commissioning, commissioning, start-up, and maintenance of rotating and static equipment. Skilled in project planning, troubleshooting, and team coordination in onshore and offshore environments. Committed to safety, quality, and achieving operational excellence within deadlines and budget.
Overview
7
7
years of professional experience
Work History
Mechanical Commissioning Specialist
FGP 3GP Tengiz Chevron (Novus-Bolashak)
Atyrau,Tengiz
05.2022 - 01.2025
- Led and coordinated commissioning, start-up, and troubleshooting of pumps, compressors, turbines, fin fan coolers, RO plants, UF filters, separation columns, and utility systems for oil & gas and process plants.
- Managed dynamic commissioning and pre-commissioning activities to ensure compliance with design and operational requirements.
- Conducted comprehensive system checks, pressure tests, and line walkdown to ensure readiness and operational alignment with manufacturer specifications.
- Supervised start-up of compressors and process equipment, ensuring safe and efficient operations.
- Oversaw permit-to-work coordination for all commissioning activities, ensuring safety compliance.
- Managed punch lists and ITR close-out documentation for timely project delivery.
- Collaborated with multidisciplinary teams and participated in daily client meetings to address project concerns and ensure alignment.
- Supported operations teams in transitioning to steady-state operation, providing troubleshooting and technical assistance as needed.
Mechanical Engineer
Reliance Industries (Aarvi Encon Limited)
Surat,Hazira
01.2022 - 06.2022
- Conducted overhauls and preventive/corrective maintenance (PM/CM) of compressors, turbines, pumps, heat exchangers, and associated mechanical systems, ensuring equipment reliability and performance.
- Coordinated closely with operations teams to optimize equipment availability and minimize downtime.
- Adhered to HSE guidelines, prioritizing safety during all maintenance and installation activities.
- Reviewed P&ID and isometric drawings to plan and execute maintenance tasks with accuracy.
- Supervised the installation and commissioning of new pipelines and mechanical equipment in compliance with project specifications and safety standards.
- Participated in daily planning meetings to align maintenance activities with project schedules and address safety and operational concerns.
- Supported troubleshooting and root cause analysis efforts to drive continuous improvement and maintain asset integrity.
Mechanical Supervisor
Shapoorji Palonji FPSO Armada Sterling 5
Mumbai
05.2021 - 11.2021
- Supervised maintenance of critical rotating and static equipment in FPSO facilities, including pumps, compressors, turbines, heat exchangers, and valves.
- Led a team in preventive maintenance, inspections, and emergency repairs, ensuring high equipment uptime.
- Directed installation, alignment, and testing of rotating equipment in line with industry standards.
- Conducted root cause analysis and corrective actions for mechanical failures.
- Managed overhauls and supported commissioning and start-up activities.
- Coordinated with engineering and operations teams to optimize performance.
- Led daily safety briefings and ensured strict adherence to HSE guidelines.
Mechanical Supervisor
ADNOC Bu Hasa Field – LNG (Liquefied Natural Gas)
Abu Dhabi
01.2021 - 04.2021
- Supervised installation of a new turbine and connected Siemens compressor, ensuring accurate laser alignment and commissioning.
- Conducted overhaul of compressors, including gas seal installation, bearing replacement, and precision laser alignment.
- Collaborated with operations and engineering teams to ensure seamless equipment integration and reliable performance.
Mechanical Supervisor
Qatar Energy (Heman Oil and Gas Services)
Raslaffan
08.2020 - 11.2020
- Handled routine preventive maintenance (PM) tasks and emergency repairs for rotating and static equipment.
- Conducted maintenance of pumps, firewater diesel pumps, and emergency diesel generators.
- Performed rotating equipment seal and bearing replacements, ensuring equipment reliability and performance.
Senior Mechanical Technician
Qatar Petroleum Company (QAPCO) Shutdown
Raslaffan
02.2020 - 06.2020
- Obtained proper work permits for shutdown activities, ensuring safety compliance.
- Conducted checks for suction, discharge, vent drain, and foundation bolts, addressing any leaks.
- Performed preventive and emergency maintenance for rotating and static equipment.
- Verified correct motor rotation, PSV function, and gauge performance during operations.
- Performed hot alignment checks after running hours and monitored temperature, pressure, and vibration of equipment and piping.
Mechanical Technician
Arabian Construction Engineering Co. (ACEC)
Raslaffan
05.2019 - 12.2019
- Extensive experience in overhauling, troubleshooting, and maintaining centrifugal (single/multi-stage), reciprocating, and rotary pumps and compressors.
- Proficient in repairing mechanical seals, dry gas seals, and gland packing systems.
- Skilled in maintenance and overhaul of steam turbines (Dresser Rand, Triveni) and gas turbines (Solar, MAN), including bearing, seal, and alignment tasks.
- Conducted diesel engine overhauls (CAT, Hyundai) and ensured reliable operation of fin fan coolers, cooling towers, blowers, and heat exchangers.
- Experienced in pipeline and static equipment maintenance, including valves, separators, and process columns.
- Performed precision alignments (dial gauge, laser), bearing clearance measurements, and equipment integrity checks.
- Participated in commissioning and startup: leak tests, flushing, interlock system checks, and P&ID verification.
- Prioritized HSE compliance and collaborated with multidisciplinary teams to ensure safe, efficient, and reliable operations.
Trainee Engineer
Oil and Natural Gas Corporation Limited (ONGC)
Surat,Gujarat
04.2018 - 03.2019
- Assisted in preventive and corrective maintenance activities for rotating and static equipment.
- Supported senior engineers in equipment inspections, troubleshooting, and repairs.
- Gained hands-on experience in alignment, bearing replacement, and seal installations.
- Conducted equipment performance checks and contributed to maintenance record-keeping.
- Developed familiarity with P&ID drawings, safety standards, and commissioning practices.
Education
Bachelor of Mechanical Engineering - Mechanical
Gujarat Technological University
Surat,Gujarat 04.2001 -
High School Diploma -
Gujarat Secondary And Higher Secondary Education
Surat,Gujarat 04.2001 -
Skills
Rotating and static equipment maintenance
Troubleshooting and repairs
P&ID and isometric drawing interpretation
Preventive and predictive maintenance (PM, CM)
Permit-to-work system (PTW)
Shutdown and turnaround management
MS Office (Word, Excel, PowerPoint)
CMMS (like SAP PM or Maximo)
Problem-solving and decision-making
Communication and reporting
Timeline
Mechanical Commissioning Specialist
FGP 3GP Tengiz Chevron (Novus-Bolashak)
05.2022 - 01.2025
Mechanical Engineer
Reliance Industries (Aarvi Encon Limited)
01.2022 - 06.2022
Mechanical Supervisor
Shapoorji Palonji FPSO Armada Sterling 5
05.2021 - 11.2021
Mechanical Supervisor
ADNOC Bu Hasa Field – LNG (Liquefied Natural Gas)
01.2021 - 04.2021
Mechanical Supervisor
Qatar Energy (Heman Oil and Gas Services)
08.2020 - 11.2020
Senior Mechanical Technician
Qatar Petroleum Company (QAPCO) Shutdown
02.2020 - 06.2020
Mechanical Technician
Arabian Construction Engineering Co. (ACEC)
05.2019 - 12.2019
Trainee Engineer
Oil and Natural Gas Corporation Limited (ONGC)
04.2018 - 03.2019
Bachelor of Mechanical Engineering - Mechanical
Gujarat Technological University
04.2001 -
High School Diploma -
Gujarat Secondary And Higher Secondary Education
04.2001 -
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