Sr. Lead Hydrogeologist UCG

Posted Date :

19 Sep 2025

Function/Business Area :

Exploration & Production

Location :

Navi Mumbai

Job Responsibilities :

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The Development Geologist cum Modeller will lead the integration of geological, geophysical, petrophysical, and engineering data to develop robust static models for field development and reservoir management. The incumbent will be a key player in multidisciplinary teams, contributing to strategic decision-making through technical excellence and cross-functional collaboration.

Key Responsibilities:

1. Geological Interpretation & Subsurface Understanding:

• Proficient in interpreting depositional environments across clastic, carbonate, mixed, deepwater, and shallow-marine systems.
• Conduct seismic facies analysis and generate detailed depositional models.

2. Static Modelling Expertise:

• Develop complex structure models, apply both stochastic and deterministic approaches to facies/property modelling.
• Perform volumetric analysis, uncertainty quantification, and multi-scenario evaluations.

3. Reservoir Engineering Collaboration:

• Collaborate closely with REs on dynamic modelling, upscaling, and history matching.
• Provide static input for material balance (MBAL) and production forecasts using deterministic and probabilistic approaches.

4. Development & Appraisal Planning:

• Contribute to Field Development Plans (FDPs), full field reviews, and brownfield/greenfield development.
• Evaluate near-field exploration and behind casing opportunities.

5. Well Planning & Operations:

• Guide well planning, geo-steering, and real-time subsurface decision-making.
• Define and supervise data acquisition strategies in exploration, appraisal, and development wells.

6. Integration with Other Disciplines:

• Provide geological input into drilling, facilities, and economic models.
• Participate in risk and uncertainty analyses, decision trees, and support full-cycle E&P workflows from exploration to rejuvenation.

7. Leadership & Mentoring:

• Lead and mentor junior geoscientists, foster technical development within the team.
• Work effectively in integrated teams including geophysicists, petrophysicists, REs, PE, and drilling engineers.

About the Role

We are seeking an experienced and results-driven Senior Lead Hydrogeologist to lead groundwater investigation, modeling, and field coordination across various project sites. The role focuses on acquiring and analyzing hydrogeological data, conducting pumping tests, and building numerical models using software such as MODFLOW, GMS, or equivalent. The candidate should have strong command over flow analysis, hydraulic conductivity, and practical field operations.

Key Responsibilities

• Lead acquisition of groundwater data, including borehole logging, water level monitoring, and aquifer testing

• Develop and run groundwater models using MODFLOW, GMS, or other industry-standard tools

• Conduct hydraulic conductivity assessments and flow net analyses for aquifer characterization

• Design, supervise, and interpret pumping tests for aquifer evaluation and recharge potential

• Coordinate day-to-day field activities related to groundwater exploration and monitoring

• Analyze hydrogeological data to assess aquifer behavior, flow patterns, and groundwater availability

• Prepare hydrogeological reports, models, maps, cross-sections, and technical presentations

• Liaise with multidisciplinary teams and external consultants to support project development

• Ensure quality control and adherence to regulatory and environmental standards

Requirements

• Bachelor's or Master's degree in Hydrogeology, Geology, Environmental Science, or related field

• 15–20 years of experience in hydrogeological studies, groundwater modeling, and field exploration

• Proficiency in MODFLOW, GMS, or similar groundwater modeling software

• Strong understanding of hydraulic properties, aquifer systems, and flow modeling principles

• Hands-on experience with pumping tests, aquifer characterization, and field instrumentation

• Proven ability to coordinate multiple exploration activities across different project blocks

• Excellent analytical, reporting, and communication skills

• Strong leadership and project management capabilities

Education Requirement :

Post graduate in Geology/Applied Geology from a recognized university

Experience Requirement :

12-15 yrs Experience with very good modelling skill is required

Skills & Competencies :

• Advanced level expertise in sedimentology, sequence stratigraphy, structural geology, and basin development.
• Expert user of industry tools - e.g., Petrel.
• Strong skills in structural and facies mapping, petrophysical property mapping using geostatistical methods.
• Experience with seismic inversion, AVO analysis, and seismic attribute interpretation for facies and fluid characterization.
• Adequate understanding of petrophysical interpretation, RCA, SCAL, core sedimentology, image log, and NMR analysis.
• Ability to integrate rock and log data into geomodelling workflows.

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