Senior Geomodeller — Offshore & Deepwater Reservoirs

Ian Martin Group; Spring (TX); On-site; USD 170,000 - 260,000; Full time

Job summary

Ian Martin Group is seeking a Senior Geomodeler (Conventional / Deepwater) to build and maintain integrated 3D geological models for offshore reservoirs. The role combines seismic, well, petrophysical, and production data to support appraisal, planning, and development optimization.

The candidate will advance structural and stratigraphic modelling and generate hydrocarbon volumes with uncertainty analysis, enabling accurate reservoir simulation and field development decisions.

Qualifications

• Master’s degree or higher in geology, geophysics, petroleum geoscience, geological engineering, or related field.
• 10+ years oil and gas experience with conventional geomodelling and offshore/deepwater development.
• Strong capabilities in structural modelling, stratigraphy, facies modelling, and uncertainty analysis.

Responsibilities

• Build structural, stratigraphic, facies, and petrophysical models for offshore and deepwater reservoirs.
• Integrate seismic interpretation, well logs, core, pressure, and production data into reservoir models.
• Characterize deepwater depositional systems and reservoir connectivity.
• Generate deterministic and probabilistic hydrocarbon volumes and realizations.
• Support reservoir simulation, production forecasting, and development planning.
• Assist appraisal and development-well planning, including location and trajectory selection.
• Update models with new data; maintain quality, docs, version control, and transparency of uncertainties.

Skills

Geomodelling

Oil & gas analytics

Seismic-well data integration

Data analytics

Communication/collaboration

Education

Master’s degree in Geology/Geophysics or related field

Tools

Petrel

Python

Job description

Ian Martin Group is seeking a Senior Geomodeler (Conventional / Deepwater) to build and maintain integrated 3D geological models for offshore reservoirs. The role combines seismic, well, petrophysical, and production data to support appraisal, planning, and development optimization.

The candidate will advance structural and stratigraphic modelling and generate hydrocarbon volumes with uncertainty analysis, enabling accurate reservoir simulation and field development decisions.