Obinna Emmanuel Okeke

Results-driven geologist with over 15 years of progressive experience in geotechnical investigation, borehole drilling, geophysical surveys, and subsurface characterisation across Nigeria. Currently serving as Principal Geologist at the Nigerian Geological Survey Agency (NGSA), with deep expertise in XRD-based mineral analysis, groundwater assessment, and subsurface geological mapping. Proven ability to design and execute field surveys, manage multidisciplinary projects, and deliver high-quality technical reports.

Motivated to contribute expertise in geotechnical and subsurface investigation to geoenergy research in a geological context comparable to crystalline basement terrains.

Principal Geologist - Nigerian Geological Survey Agency (NGSA) - Abuja

(2017-01)

• Lead mineral identification and characterisation using X-Ray Diffraction (XRD) — analysing over 200 samples weekly — directly relevant to geoenergy reservoir and bedrock characterisation.
• Design and execute geotechnical investigations employing sieve analysis, Atterberg limit testing, and consolidation tests to assess subsurface properties relevant to geoenergy installations.
• Conduct groundwater investigations and supervise borehole drilling integrated with geophysical surveys to determine groundwater viability and subsurface thermal gradients.
• Lead mineral exploration campaigns to determine compositional profiles of geological units — informing assessments of geothermal production potential.
• Prepare geochemical sample data and conduct lithological, structural, and geochemical mapping across field sites in Nigeria.
• Engage with national and international scientific training on geochemical analysis and field methodology.

Manager – Geotechnical Division - Hando Services Limited

(2013-01 - 2017-12)

• Oversaw borehole drilling, geotechnical investigations, and geophysical surveys for civil and infrastructure projects.
• Managed client assignments, project timelines, and technical deliverables for geoscience service contracts.
• Coordinated multidisciplinary field teams across geophysical survey, drilling, and laboratory functions.

Principal Geologist - Haykal Piling Limited (HPL)

(2010-01 - 2013-12)

• Served as primary technical interface between clients and the company for geotechnical project delivery.
• Developed and implemented business and technical plans; ensured quality assurance for all subsurface investigations.
• Evaluated subcontractor performance against safety and service quality standards.
• Authored final technical reports with pre-construction geotechnical recommendations.

Exploration Geologist - Società Generale Fondazioni (SGF) Nigeria Limited

(2008-01 - 2010-12)

• Conducted reconnaissance surveys and supervised borehole drilling and soil investigation programs.
• Designed stratigraphic columns integrating field and laboratory soil and water sample data.
• Bridged drilling and geosciences teams to ensure data quality and operational safety.
• Produced detailed technical reports with geotechnical findings and pre-construction recommendations.

B.Tech - Geology - Federal University of Technology, Minna, Nigeria (2005-12)