Geoscience - Operations / Wellsite Geologist III at ABNL Limited

ABNL Limited was incorporated in 1992 as an Oil and Gas servicing company with a vision to provide professional engineering and technical services to the Oil and Gas exploration and production companies in Nigeria and the West African sub-region. Since its incorporation, the company has grown in leaps and bounds, expanding its business horizon, but still within the Oil and Gas sector.

ABNL is a 100% owned indigenous firm, with a shareholding in excess of 100 million Naira. Its' directors are individuals of proven integrity, who over the years have acquired the requisite experience in the Oil and Gas business, as well as in the banking and finance sector. The integrity of the directors and the staff of the company have been a priceless contributive factor in the growth and wellbeing of the company.

We are recruiting to fill the position below:

Job Title: Geoscience - Operations / Wellsite Geologist III

Location: Seplat House, Lagos
Employment Type: Contract

Main Function

• Interpret and Integrate geological data and provide well-site geological support for drilling wells in oil fields.
• This Includes delivering optimized horizontal well bore placement, final well reports, updated horizontal well cross-sections, maps and formation evaluation logs for recent and previously drilled wells.
• Provide geological support for interdisciplinary reservoir study and field development plans. Develop and mentor less experience staff.

Task and Responsibilities

• The primary responsibilities of the Wellsite Geologist is supervision of all well site geological personnel and operations (e.g. mudlogging, Logging While Drilling (LWD), Wireline services, core handling/processing) and quality assurance of all geological data acquisition and reporting.

Wellsite Geological Services:

• Geological monitoring.
• Monitoring and supervision of wireline and LWD logging operations.
• Monitoring of coring operation.
• Monitoring and supervision of mudlogging operations.

Reporting Responsibilities:

• Auditing geological services when appropriate.
• Well Completion Report Compilation and Distribution
• Coordination of Wellsite Geological Activities ("Operations Geologist"): Coordinate, monitor, and administer Company operated wellsite geotechnical activities.

Pre-drill Planning:

• Point of contact for third party geological services vendors.
• Monitor and coordinate wellsite geologic data acquisition and analysis activities; disseminate information to stakeholders; participate in regular teleconferences and meetings; review/verify invoices for geological services.

Post-drill Responsibilities include:

• Coordinating shipments of samples, logs, and reports as well as completing special/ad-hoc projects.

Abnormal Pressure Surveillance:

• Ensure all abnormal pressure parameters are monitored, captured on a pressure evaluation log, and reviewed with Company Operations Geologist and Drilling Supervisors as required 
• Generate and distribute detailed reports compiling parameters, observations, and interpretation

Skills and qualifications

• BS / MS in Geology from a recognized institution
• Experience as a Wellsite Geologist
• Fluent in both written and spoken English, have good organizational and coordination skills, and be able to work well with others.
• Offshore experience including platform/deviated well drilling with associated technologies (e.g. LWD, WL).
• Must be in good physical condition and shall comply with all project health and safety requirements (including any rig or country-specific certifications required to work offshore).
• Have successfully passed a recognized (OPITO) course in Helicopter Underwater Escape Training (HUET), Sea Survival, and H2S within the previous two years. Certifications must be current and not due to expire for the anticipated duration of the project.
• Experience with mud logging; cuttings description; real-time image logs; and correlating them to determine lithology and well path.
• Experience with directional drilling, well planning, depth control measurements; and understanding of BHA's (Bottom Hole Assembly).
• Experience with coring operations.
• Experience of working in integrated asset team environment.
• Experience in applying structural geology concepts and methods to assess compartmentalization/communication.
• Experience of having worked with geologic modelers to incorporate maps and their interpretations into 3D geologic models.

Application Closing Date
30th March, 2026.

How to Apply
Interested and qualified candidates should send their CV in MS word format to: jobs@abnl.net using the Job Title as the subject of the email.