Summary
Overview
Work history
Education
Skills
Certification
Languages
Affiliations
References
Timeline
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Sunday Chujor

Sunday Chujor

Port Harcourt,Portharcourt

Summary

Professional with 8 years of experience in well intervention and coiled tubing operations. Specialises in engineering analyses, risk assessment, and operational troubleshooting. Skilled in developing tailored job programmes and delivering effective presentations. Committed to safety and innovation in the energy industry.

Overview

8
8
years of professional experience
1
1
Certification

Work history

Service Engineer-Coiled Tubing

Hydroserve Group
Rivers, Portharcourt
06.2025 - Current
  • Conduct technical calculations and simulations to optimize coiled tubing interventions.
  • Developed job programs and contingency plans based on well data and clients objective.
  • Ensure safety and efficiency in operations, supervising daily activities and reporting challenges encountered.
  • Generate and maintained accurate daily operational reports such as; daily well services activity, report on challenges encountered in the course of project execution.
  • Supervise the execution of well services operations to ensure its performed in a safe, cost effective and timely manner.
  • Analyze operational risks and ensure that mitigation factors are in place including the provision of HSE Controls and mitigation measures in place (PTW, JSA, Pre-Job Meetings).
  • Champion pre-mobilization/de-mob activities, including equipment selection, pre-trip checks, QA/QC on equipment and processes, pipe management, fatigue tracking of CT string.

Projects Executed

  • Sahara Energy World-Isimiri well 4, 6T& 9SS, N2 Lift, acidization, fishing, zonal isolation, perforation.
  • Aradel Holdings-Ogbele 4ST3, Fishing, Zonal Isolation, perforation.
  • Eyrie Energy-Koakama well 3T, Nitrogen Lift services.
  • Renaissance Energy-Kanbo/Tunu well 4ST, sand cleanout, milling, zonal isolation, perforation and N2 lift.
  • Energia, Ebendo 4SS-Water shut off, zonal isolation, perforation, acid treatment and N2 Lift.

Senior Operator-CT/HP Pumps/N2

Halliburton
Dammam, Udhailiyah Saudi Arabia
05.2024 - 06.2025

Projects Executed

  • DNAN unconventional site 403, Milling Operation.
  • Hamyn 1002 unconventional site, Milling Operation.
  • ADM 681 offshore rig, Nitrogen lift services.
  • Hamyn 1003 unconventional site, Milling Operation.
  • Harath Gazzl Site 44, Nitogen Lift Operation.
  • Hamym site 1002 unconventional wells, Milling, Hydra-jetting, Acid Treatment.
  • Zamil Offshore field Campaign, well 1400, 1404,1405,1406, 1407,1408,1409 continues.
  • HarathSite 45, wellbore displacement/Nitrogen Lift Operation.
  • Shedgum Site 25, Nitrogen Lift Operation.

Service Operator-CT/HP Pumps

Halliburton
Dammam, Udhailyah Saudi Arabia
08.2023 - 12.2024

Projects Executed

  • BERRI Offshore Field Campaign; Well 86, 81, 31, 100, 89,
    62Acid Treatment, WBD, N2 Lift, Slick-line.
  • UTMN 2338, Well bore displacement.

Senior Operator-CT/HP Pumps

Baker Hughes
Dammam, Udhailiyah Saudi Arabia
01.2024 - 04.2024

Projects Executed

  • Harath Site 41- Milling, Clean-out and N2 Lift.
  • Harath Site 25- Milling, Acid treatment, Clean-out and N2Lift.
  • DQ site 49- Acid Treatment and N2 Lift

Service Supervisor-Coiled Tubing

Kegoz Oilsystems Limited
Port Harcourt, Rivers State
03.2023 - 08.2023

Job Roles;

  • Plan and coordinate all coiled tubing operations, ensuring safe and efficient execution.
  • Interface with clients and other service lines, ensuring job objectives are met, reports are accurate and operations align with clients objective.
  • Troubleshoot and resolve downhole and surface issues; hydraulic failures, pressure anomalies, CT contingencies and well control challenges.
  • Ensure full compliance with HSE standards, conduct risk assessments, toolbox talks and enforce safe work practices.
  • Monitor real time operational parameters-pump rates, pressures, CT weight, fatigue limits.
  • Coordinate equipment pre and post trip maintenance.
  • Reinforced company policies amongst team members, ensuring consistent compliance.

Projects Executed

  • First Hydrocarbon Nigeria Ltd. Ozoro-Well 9SS&LS. Sand cleanout, N2 Lift.
  • Heritage Energy/NPDC Ughelli Afiesere Well 37LS-sand cleanout, fishing and N2 lift.
  • Heritage Energy/NPDCUghelli Olomoro Well 11LS, 27LS- Sand Cleanout, Acidization, N2 Lift.
  • Energia-Ebendo 5LS and 6SS, Acid treatment and N2 lift.

Senior Service Operator- CT/HP Pump/Filtration,

Nymagx Energy Services Limited
Port Harcourt, Rivers State
10.2018 - 03.2023

Projects Executed

  • BRINE FILTRATION, Elcrest E&P. Sibiri 02. March 2023.
  • GRAVEL PACK OPERATION, Ohaji 7, January 2023.
  • MIDWESTERN, Ebendo 8ST, Surface Well testing, Nitrogen lift Operation. Dec 2022.
  • BHP/SWABBING OPERATION with Slickline. Igbolo 1 Kwale. November 2022.
  • CONOIL/BELBOP, Otuo North 19RD. Well Kill Operation, Bridge Plug Deployment, Well Abandonment with Cement. Aug-Sept 2022.
  • NECONDE/NPDC, Odidi 7T, 23LS, 9SS & 12LS Wells. Well Kill/Water Shut-off/Acid Treatment/Gun Deployment/Nitrogen Lift Services. Apr-May 2022.
  • WALTERSMITH PETROLEUM, Ibigwe 6ST well. Sand Cleanout/Acid Treatment/ N2 Lift. Mar 2022.
  • EROTON/MIDWESTERN, Umu 8LS & 10LS wells. Bridge Plug Deployment/ Perforation/Hammer Tool Deployment/ Fishing/Acid Treatment/N2 Lift. January 2022.
  • NPDC, Oredo 19LS, 9LS, 20LS&ST, 12T, 13LS & 4ST wells. Acid Treatment/Milling/Water Shut-Off/Nitrogen Lift. October-December 2021.
  • ENERGIA, Ebendo 4SS. Well Kill/Fishing/Acid Treatment/Nitrogen Lift Services. July 2021.
  • BRINE FILTRATION SERVICES, CONOIL/BELBOP Otuo South 8. May 2021.
  • SPDC, Forcados Yokiri 74LS & 86ST Wells. Nitrogen Services/Sand Consolidation Treatment/Wellbore Sand Clean Out. August-September. 2020.
  • NPDC, Oredo 2LS,4ST&5LS wells. Acid treatment/Water Shut-off/Zonal Isolation/Gun Deployment/Nitrogen Lift Campaign Services. June-July 2020.
  • CONOIL/BELBOP, Otuo North 8ST, Wellbore Cleanout/Nitrogen Lift Services. May 2020.
  • NPDC, Oredo 16LS&ST. Matrix Acidizing/Solvent Soak/Wellbore Cleanup/Nitrogen Lift Services.February 2020.
  • BRINE FILTRATION SERVICES, NPDC Oghareki 3. December 2018-January 2019.

Field Operator

WEAFRI
Port Harcourt, Rivers State
11.2017 - 09.2018

Projects Executed

  • SEPLAT, Oben 41T, Oben 48LS, Oben 28SS. Acid stimulation/Nitrogen Lift Service, flow back services.
    May- Jul 2018.
  • NIGER DELTA PETROLEUM RESOURCES, Ogbele 4ST. Nitrogen Lift Services, Surface well testing. Jan-Feb 2018.
  • SEPLAT, Ovhor 6T, Ovhor21LS. Pressure Pumping to Open SCSSV on well 6T/Nitrogen lift on well 21LS. Dec 2017.

Education

NYSC Cert - NYSC

National Youth Service Corps
Lagos
11.2017 -

B.Eng - Petroleum Engineering

University of Portharcourt
Port Harcourt, Rivers State
01.2011 -

Skills

  • Coiled tubing design, simulation, and calculation
  • Data analysis and acquisition
  • Project Coordination
  • Risk assessment
  • Well schematic interpretation
  • Effective communication and presentation
  • Microsoft Word, Excel and Power Point
  • Field service reporting

Certification

  • IWCF
  • IADC
  • HUET
  • H2S&FIRE FIGHTING
  • SCBA& FIRST AID
  • PST


Languages

English
Fluent

Affiliations

  • Travelling, Swimming, Singing, cooking

References

References available upon request.

Timeline

Service Engineer-Coiled Tubing

Hydroserve Group
06.2025 - Current

Senior Operator-CT/HP Pumps/N2

Halliburton
05.2024 - 06.2025

Senior Operator-CT/HP Pumps

Baker Hughes
01.2024 - 04.2024

Service Operator-CT/HP Pumps

Halliburton
08.2023 - 12.2024

Service Supervisor-Coiled Tubing

Kegoz Oilsystems Limited
03.2023 - 08.2023

Senior Service Operator- CT/HP Pump/Filtration,

Nymagx Energy Services Limited
10.2018 - 03.2023

Field Operator

WEAFRI
11.2017 - 09.2018

NYSC Cert - NYSC

National Youth Service Corps
11.2017 -

B.Eng - Petroleum Engineering

University of Portharcourt
01.2011 -
Sunday Chujor