Senior Development Geologist

Requirements

• Bachelor's degree or higher in Geology, Geological Sciences, Geoscience, or a closely related discipline.

• Minimum 15 years of relevant oil and gas industry experience, with substantial experience in development and/or production geology.

• Strong experience working with producing fields and field development projects.

• Demonstrated experience in well planning, well correlation, structural and stratigraphic interpretation, reservoir mapping, and geological modeling.

• Experience identifying and maturing development drilling, infill, sidetrack, recompletion, and workover opportunities.

• Strong understanding of reservoir characterization and integration of geological, petrophysical, production, pressure, and reservoir engineering information.

• Experience supporting drilling operations and conducting post-well evaluation.

• Experience contributing to FOP/POD, reserves assessment, annual work programs, or similar field development activities.

• Experience with mature-field redevelopment and production optimization is strongly preferred.

• Experience with both elastic and carbonate reservoirs would be an advantage.

• Experience with Indonesian oil and gas assets and the Indonesian regulatory/PSC environment would be a strong advantage.

Job Descriptions

• Perform integrated geological evaluation of producing oil and gas fields using well, log, seismic, production, pressure, surveillance, and other available subsurface data.

• Develop and maintain a detailed understanding of reservoir structure, stratigraphy, depositional environment, facies distribution, reservoir quality, fluid contacts, and compartmentalization.

• Build, update, and quality-control geological frameworks and static reservoir models to support development decisions.

• Perform well correlation, structural interpretation, reservoir mapping, thickness mapping, property distribution, and volumetric assessment.

• Integrate geological interpretation with reservoir engineering and production data to identify remaining hydrocarbon potential and development opportunities.

• Generate and mature new well, infill drilling, sidetrack, recompletion, and workover opportunities.

• Provide geological justification and risk assessment for proposed development wells and intervention activities.

• Participate in well planning, including target definition, well trajectory evaluation, landing-point selection, reservoir penetration strategy, and geological prognosis preparation.

• Provide geological support during drilling operations and participate in real-time well evaluation and geosteering activities where required.

• Conduct post-well evaluation and integrate drilling results into geological models and future development plans.

• Work closely with reservoir engineers to ensure consistency between geological and dynamic reservoir models.

• Support preparation and updating of Field Development Plans (FDP), Plan of Development (POD), annual work programs, reserves/resource evaluations, and subsurface development strategies.

• Identify subsurface uncertainties and risks and recommend appropriate data acquisition or surveillance programs to reduce uncertainty.

• Evaluate historical well performance and subsurface information to identify bypassed or remaining hydrocarbon potential, particularly in mature fields.

• Participate in technical reviews, peer reviews, reserves evaluations, and internal assurance processes.

• Prepare clear technical reports, maps, presentations, and recommendations for management and other stakeholders.

• Provide technical guidance and mentoring to junior and mid-level geologists and contribute to strengthening the overall subsurface capability of the organization.

• Work effectively with multidisciplinary teams and external consultants, contractors, partners, and government/regulatory stakeholders when required.