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Principal Reservoir Engineer

WTS Energy · Lagos

WTS EnergyLagosPosted 4 November 2026

At a glance

Closing date
The listing does not give one. Employers often close early when they have enough applicants, so apply soon.
Where
Lagos, Nigeria
How to apply
On myjobmag.com, where the employer takes applications.
This employer
WTS Energy has 14 open roles on RezSync.

Job Description

A Principal Reservoir Engineer role is available in Lagos, Nigeria, for an experienced subsurface professional.

The purpose of the role is to provide reservoir engineering leadership and technical authority across the asset, ensuring that simulation, analytical modelling, well testing, reserves evaluation and field development planning are delivered to a consistently high standard.

The position carries responsibility for waterflood, gas injection and gas condensate systems, and for managing the contracts and interfaces that underpin sound subsurface decisions.

The successful candidate will combine deep technical expertise with clear communication in English to guide development decisions and support the wider subsurface team.

Main responsibilities

Lead the construction and delivery of reservoir simulation models and analytical reservoir modelling, including material balance, decline curve analysis, pressure transient analysis and bottomhole pressure interpretation.

Design and interpret well tests, and perform reserves calculation and classification.

Carry out well modelling and performance assessment to support development decisions.

Manage waterflood and gas injection activities and maintain well and reservoir surveillance.

Contribute to field development planning, including gas condensate reservoir systems and gas field development.

Manage contracts and interfaces with internal and external stakeholders.

Communicate technical work clearly and effectively in English.

Required qualifications

University degree in Engineering or equivalent

12-15 years relevant experience

Minimum 10 years reservoir engineering experience in an operating company

Reservoir simulation model construction experience

Analytical reservoir modelling experience (material balance, DCA, PTA, BHP)

Well test design and interpretation experience

Reserves calculation and classification experience

Well modelling and performance experience

Waterflood and gas injection management experience

Well and reservoir surveillance experience

Field development planning experience

Gas condensate reservoir systems and gas field development experience

Contract management and managing interfaces experience

Very good knowledge of the English language.

Minimum qualifications

BA/BSc/HND

How to apply

Use the link(s) below to apply on company website.

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https://www.myjobmag.com/apply-now/1379222

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