Summary
Overview
Work History
Education
Skills
Certification
Aerobic Exercises
Languages
Timeline
Generic

Mayindu Lumingu

Luanda,OFFSHORE

Summary

Professional with 19 years ongoing offshore Exposure working as Seismic Source Mechanic Specialist, Back Deck Mechanic and Linesman or Nodes Handler with extensive experience in 2D,3D,4D, seismic acquisition operations, utilizing advanced systems such as Solid Streamers, Barovanes, Monowings,DSC,PLC and Gunlink4000. Proficient in managing hydraulic and high-pressure air systems, alongside a strong performance in other seismic operations, including OBN and OBS. Demonstrated ability to handle complex equipment maintenance and repairs, ensuring operational efficiency and compliance with safety standards. Proven skills in technical troubleshooting, inventory management, and team collaboration contributing to effective project completion in challenging environments and in timely manner.

Overview

19
19
years of professional experience
1
1
Certification

Work History

Gun Mechanic Specialist

ShearwaterGeo Through LinkedOut AS
02.2025 - 04.2025
  • Inspected and tested equipments to locate worn and damaged parts.
  • Performed diagnostic and troubleshooting procedures to find and identify root causes of failures.
  • Maintained source equipments to high standards per PMS, supporting seismic datas acquisition.
  • Ensured adequate drying air service and maintained filters in optimal condition.
  • Updated preventative maintenance system to minimize downtime effectively, maintaining records and logs.
  • Reduced downtime by 20% through proactive promotion of the preventative maintenance system.
  • Built, tested, deployed, and recovered "HARMONY" Gun Arrays with 6,000 cubic inch capacity each.

Gun Mechanic Specialist

ShearwaterGeo Through LinkedOut AS
08.2023 - 08.2024
  • Conducted maintenance on Deflectors 412, ensuring operational readiness.
  • Deployed and recovered Solid Sentinel Streamers with effective storage procedures.
  • Maintained accurate records of work performed to adhere to company standards.
  • Ensured compliance with safety protocols during equipment's handling.
  • Managed dynamic source control system maintenance and operations efficiently.
  • Oversaw triple source operations to enhance productivity.
  • Analyzed and located malfunctions in Gun Reels brakes, Hydraulic motors, switches, and control systems.
  • Disassembled defective parts to make proper repairs.

Chief Mechanic | Ocean Bottom Nodes

ShearwaterGeo Through Linkedout AS
05.2022 - 07.2022
  • Converted NV3 tugboat into a laying OBN vessel at CAMMELLAIRD Shipyard.
  • Mounted OBN deployment and recovery hardwares on the back deck.
  • Collaborated with the EVOTEC team to install electro-hydraulic control systems.
  • Adjusted hydraulic valves according to operational requirements.
  • Conducted full functional tests on all equipment's for operational readiness.
  • Developed detailed repair plan for the project, ensuring efficient use of resources and timely completion.
  • Promoted a comprehensive preventative maintenance program, resulting in reduced equipment downtime.
  • Led project 7013 - NV3 - ENI Lenox East NOAR from inception to completion.
  • Executed demobilization and De-rig of nodes laying vessel.

Gun Mechanic | Back Mechanic Lead | Linesman

WesternGeco & BGP CNPC Via Channel Ship Services
05.2016 - 01.2020
  • Upgraded and commissioned vessel successfully, transitioning from cold stack to production.
  • Assisted in modifications and installation of OBN system onboard the vessel.
  • Tested newly installed OBN equipments and developed best practices for deployment and recovery.
  • Serviced spare deflectors and prepared cylinders' sets for operational readiness.
  • Conducted hydrostatic pressure tests on Umbilical and Gun reels Slip rings providing corresponding test certificates.
  • Overhauled 48 Bolt air guns.
  • Inspected and tested equipments to locate worn; and replaced defective parts with new and refurbished components.
  • Performed diagnostic and troubleshooting procedures to find and identify root causes of failures.
  • Installed Nodes charging and storage system.
  • Involved in Nodes deployment and recovery process, as Back Deck Mechanic and Nodes handler or Linesman.

Seismic Source Mechanic Specialist

WesternGeco, Schlumberger
05.2006 - 06.2015
  • Executed critical undershoot, close pass and diverse survey types from single streamer to multi-streamers surveys.
  • Conducted maintenance and modifications on vessel seismic equipment's.
  • Streamlined inventory management for essential parts, minimizing delays during time-sensitive repairs.
  • Reduced downtime by 15% by promoting preventing maintenance.
  • Replaced faulty wiring harnesses to restore functionality of Gun Arrays electrical systems.
  • Adhered to safety protocols when operating machinery and handling hazardous materials.
  • Organized tools and supplies for efficient access during maintenance operations.
  • Tested components with precision instruments to ensure operational integrity.
  • Mentored junior employees on troubleshooting techniques leading to faster resolution times and increased job satisfaction.
  • Maintained comprehensive records of repairs, labor hours, and parts utilized.

Education

Certificate of Proficiency - Hand & Power Tools Level 2

ShearwaterGeo
SW Gallien
03-2025

Certificate of Proficiency - Lifting Equipments Inspector

ShearwaterGeo
SW Empress
09-2023

Certificate of Technical Studies - Advanced Seismic Operations & Hydraulic Systems

MEA Schlumberger Training School
Abu Dhabi
04-2014

Certificate of Technical Studies - HP Hoses Manufacturing,Testing & Certifications

MEA Schlumberger Training School
Abu Dhabi
04-2014

Bachelor of Science - Electro-Mechanical Engineering

Institut Superieur Des Techniques Appliquees ,ISTA
DRC
04-2002

Skills

  • Troubleshooting and Diagnosis
  • Maintenance and repairs
  • Hand and power tools usage
  • Bolt, Sleeve and G Air guns maintenance
  • GUNLINK4000, Gunlink2000 and Trisor troubleshooting
  • Barovane and monowing proficiency
  • DSC, WSS operation
  • PLC and HMI proficiency
  • HP hoses manufacturing and certification
  • PMS software user
  • Workboat operations
  • Inventory management
  • Team collaboration skills & Problem Solving
  • Hydraulic repair
  • Welding and fabrication skills
  • Documentation and reporting

Certification

  • FOET Training - Jan 2023
  • HUET Training - Jan 2023
  • Lifting Equipment Inspector - 2023
  • Hand & Power Tools Lev.2 - March 2025
  • Marine Horizon 2: Advanced Seismic operations & Hydraulic Sytems Training Course, WesternGeco, Apr.2014
  • Certified HP Hoses Manufacturing & Testing, WesternGeco, Apr.2014

Aerobic Exercises

Running, weight-lifting 

Languages

English
Advanced (C1)
French
Bilingual or Proficient (C2)
Portuguese
Bilingual or Proficient (C2)

Timeline

Gun Mechanic Specialist

ShearwaterGeo Through LinkedOut AS
02.2025 - 04.2025

Gun Mechanic Specialist

ShearwaterGeo Through LinkedOut AS
08.2023 - 08.2024

Chief Mechanic | Ocean Bottom Nodes

ShearwaterGeo Through Linkedout AS
05.2022 - 07.2022

Gun Mechanic | Back Mechanic Lead | Linesman

WesternGeco & BGP CNPC Via Channel Ship Services
05.2016 - 01.2020

Seismic Source Mechanic Specialist

WesternGeco, Schlumberger
05.2006 - 06.2015

Certificate of Proficiency - Hand & Power Tools Level 2

ShearwaterGeo

Certificate of Proficiency - Lifting Equipments Inspector

ShearwaterGeo

Certificate of Technical Studies - Advanced Seismic Operations & Hydraulic Systems

MEA Schlumberger Training School

Certificate of Technical Studies - HP Hoses Manufacturing,Testing & Certifications

MEA Schlumberger Training School

Bachelor of Science - Electro-Mechanical Engineering

Institut Superieur Des Techniques Appliquees ,ISTA

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Mayindu Lumingu