Senior Reservoir Engineer
AI summary
Heritage Energy Operational Services Limited is hiring a Senior Reservoir Engineer on a full-time hybrid basis in Ikoyi, Lagos. The role focuses on developing and maturing OML 30 field plans, leading reservoir simulation and surveillance, and optimizing production and recovery. Candidates need a BSc in Petroleum Engineering or related field and at least 12 years of relevant oil and gas experience.
- Senior technical reservoir engineering role in Nigeria's Niger Delta flagship asset
- Full-time hybrid position based in Ikoyi, Lagos
- Leads reservoir simulation, reserves estimation, and field development planning
- Requires BSc in Petroleum Engineering and minimum 12 years industry experience
- Reports to Subsurface Manager and supervises Lead and Reservoir Engineers
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- Required12+ years of relevant experienceThe job post includes a minimum experience signal.
- PreferredPractical evidence in internship, technology, Reservoir EngineerThe tags and summary point to skills connected with this role.
- RequiredAvailability to work in Not specifiedThe vacancy is associated with this location.
- UnclearComfort with the Full Time contract termsConfirm hours, duration, probation and benefits at the original source.
Documents to prepare
- Likely requiredUpdated CV
- Role specificCover letter or short employer message
- OptionalProfessional references
- VerifyID or passport only after verifying the employer
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- Place your strongest Senior Reservoir Engineer evidence in the first half of your CV.
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- Add concrete examples related to internship, technology, Reservoir Engineer, ideally with measurable outcomes or clear responsibilities.
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Interview preparation
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Original source description
Job Title: Senior Reservoir Engineer
Senior Reservoir Engineer (Hybrid) at Heritage Energy Operational Services Limited
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Sep 17, 2026, 11:11 AM
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Established in 2016, Heritage Energy Operational Services Limited (Heritage Energy) is an affiliate of Heritage Oil Limited (HOIL) a Jersey-headquartered international Oil and Gas company. Heritage Energy is also the Operator of the flagship Asset, OML 30 in the Niger Delta, which is a Joint Venture Partnership between NNPC Exploration and Production Limited (NEPL) and Shoreline Natural Resources Limited (SNRL).
Our focus is to explore underappreciated basins and assets to create value for all stakeholders – the host communities, host governments, and ultimately our shareholders, in a sustainable and responsible way.
We are recruiting to fill the position below:
Location: Ikoyi, Lagos
Employment Type: Full-Time (Hybrid)
Department: Reservoir Development & Strategic Integration
Directly Reports to: Subsurface Manager
Supervises: Lead Reservoir Engineers and Reservoir Engineers
Job Summary
To develop and mature OML 30 field development plans with the aim of growing asset production to at least 100Kbopd.
He / she will mainly work in the Subsurface team and with the Petroleum Engineering Functions to address technical deliverables as assigned by the team leadership.
The successful candidate will join a competent team of reservoir engineers responsible for championing reservoir management strategies to maximize the value of our oil and gas assets to both enhance hydrocarbon production and optimize field development (plans).
Key Accountabilities
- Continuously monitor reservoir production and behavior, its decline and the evolution of key parameters such as the Gas-Oil Ratio (GOR) and Water-Oil Ratio (WOR): with the aim of taking actions for the optimization of the exploitation plan.
- Lead and collaborate on calculating reserves and prepare supporting information for closing Reserves for the annual economic valuation of the project/asset.
- Contributing to reservoir surveillance and monitoring programs to ensure optimal production and recovery rates.
- Plan the number of development wells, their type and characteristics, in accordance with the project's geological, logistical and technical complexity.
- Analyzing well performance and proposing reservoir management strategies to maximize recovery. Identify opportunities for increasing the recovery factor of the reservoirs. Define and carry out actions aimed at improving the well's productivity.
- Lead reservoir simulation studies to evaluate reservoir performance and develop production enhancement strategies.
- Evaluate opportunities and consider development scenarios to support exploration and new business processes.
- Performing advanced reservoir modelling and characterization, integrating geological, petrophysical, and production data to identify reservoir potential.
- Leading subsurface workflows, assurance processes and iterative methods to move from opportunity ID to execution.
- Utilizing advanced software and tools to simulate, monitor, and predict reservoir behaviour.
- Collaborating with multidisciplinary teams, including geologists, geophysicists, and production engineers, to optimize reservoir performance.
- This include participating in the production of the reservoir's Static Model and make the reservoir's Dynamic Model, taking into consideration any contributions from other disciplines, with the aim of forecasting the production, its behavior and identifying appropriate improvement actions.
- Providing technical expertise and guidance to junior engineers and colleagues.
Requirements
Qualifications
- BSc. in Petroleum Engineering or other related engineering degrees. Advanced degrees will be an added advantage.
- Good Knowledge of IPM, Prosper, OFM will be added advantage.
- Minimum of 12 years of relevant industry
Experience
in reservoir management, reserves estimation and Reservoir Simulation Modelling, preferably in oil & gas operating company.
Requisite Technical Competence & Behavioural Skill:
Reservoir Fluid (Pressure - Volume - Temperature [PVT]) Analysis and Characteristics.
Reservoir Development Concepts and Plans.
Pressure and Rate Transient Analysis (Pressure Transient Analysis [PTA]/Rate Transient Analysis [RTA]).
Uncertainty Analysis & Production Forecasting.
Strong communication with people and presentation skills.
Special Core Analysis (SCAL) Measurement and Evaluation Reservoir Performance Evaluation Using Analytical Techniques.
Strong capacity for multi-tasking, Good collaboration, relationship management, and interpersonal skills.
Resource Volume Estimation, Booking and Reporting.
Joint Venture (JV) Relations and engagement skills.
Willingness to learn and take on challenges outside comfort zone.
Excellent organizational and project management skills.
Expertise at Skills level of PetrelRE, Eclipse (or tNavigator), Sapphire, and Mbal engineering tools.
Good technical, analytical and conceptual skills. Flexibility and innovative thinking.
Good work ethic, integrity, and commitment.
Construct and Execute Well, Reservoir and Facility Management (WRFM) Reservoir Dynamic Simulation.
Identification and Evaluation of Various Recovery Processes.
Demonstrated intelligence and quick learning potential.
How to Apply
Interested and qualified candidates should:
Click here to apply online
Note
No relocation support is available for this position.
By submitting an application, candidates confirm that they are based in the advertised work location or will relocate at their own expense if selected.
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