Development Geologist

Key Responsibilities:
Geological Data Interpretation & Reservoir Mapping

Contribute to geological and reservoir models.
Generate reservoir maps showing gross and net sand thickness, net-to-gross ratio, porosity, and water saturation (SW).
Collect and interpret geological data from development wells.
Perform geological correlations between exploration and development wells.

Prospect Generation & Evaluation

Identify hydrocarbon plays, leads, and prospects within designated field areas.
Interpret geological and geophysical data to support appraisal strategies, field development plans, bypassed pay identification, infill drilling, and enhanced hydrocarbon recovery.
Calculate hydrocarbons in place using volumetric methods and contribute to reserve reporting and certification.
Evaluate prospects and development well targets and support the preparation of exploration and development drilling portfolios.
Assess geological risks, rank prospects, and recommend drilling priorities.
Present drilling proposals to management and partners.
Identify additional data requirements to improve prospect evaluation and maturity.

Well Intervention, Workover & Drilling Operations

Provide geological support to Petroleum and Reservoir Engineers (PE/RE) for well intervention and workover recommendations.
Collaborate with geophysicists on well planning deliverables, including BfWD, DSP, and well proposals.
Monitor drilling operations as the asset team's project geologist and provide technical recommendations to the Asset Manager or Geoscience Manager when required.

Government Relations

Support the geology and geophysics team in preparing block commitment reports.
Present prospect evaluations and post-well reviews to the Department of Mineral Fuels (DMF).
Assist in preparing well proposals and compiling supporting documentation.
Coordinate with the HSSE team on Environmental Impact Assessment (EIA) reports and presentations to the DMF.
Ensure required EIA data and presentations are prepared and submitted when necessary.

Business Planning, Economics & Forecasting

Support PE/RE in project economic evaluations using tools such as PEEP and Excel.
Provide geological input for annual business plans and Latest Estimate (LE) submissions.
Plan geological and geophysical (G&G) data acquisition programs to support business planning.

New Opportunities & Technologies

Keep up to date with new technologies and techniques in well logging, formation evaluation, prospect assessment, and related disciplines.
Identify opportunities to increase reserves and resources and support PE/RE in bringing non-producing and undeveloped reserves into production.

Qualifications & Requirements:
Education & Technical Knowledge

Bachelor's degree in Geology or Geophysics; an advanced degree is preferred.
Strong understanding of geological principles, physical sciences, interdisciplinary geosciences, and seismic interpretation.
Good mathematical and quantitative skills.

Experience

Minimum 8 years’ experience in hydrocarbon exploration, appraisal, and field development within the Oil & Gas industry.
Proven experience in development geology, reservoir characterization, seismic interpretation, prospect generation, reserve assessment, and well planning.
Experience supporting drilling operations and working within multidisciplinary asset teams.

Skills & Competencies:

Strong analytical, observational, pattern recognition, visualization, and data interpretation skills.
Good IT and project management skills.
Strong teamwork, flexibility, and adaptability.
Effective written and verbal communication skills for technical and stakeholder engagement.
Thai proficiency required for regulatory and local stakeholder communication; English proficiency required for technical documentation, multidisciplinary coordination, and partner communication.