Subsurface Studies: From Geology to Reservoir Engineering
Integrated studies that turn geological, geophysical and well data into decision-ready models, volumes and forecasts.
GEOSIGMOID GROUP delivers subsurface studies across geology, geophysics, petrophysics, reservoir characterization and reservoir engineering. One team works through these disciplines in a single workflow, so every model, map and forecast rests on the same quality-checked data.
From exploration screening to field development plans and reserves evaluation, we turn subsurface data into decision-ready intelligence for national oil companies, independent operators and their partners.
Our studies
Studies by discipline
Each discipline opens on its detailed service page: scope, core features, deliverables and FAQ.
Structural and geological frameworks
Understand subsurface geology and build the structural and geological framework that every later study relies on.
From seismic to reservoir properties
Turn seismic data into structures, horizons and reservoir properties, from 2D surveys to time-lapse 4D.
Well-based reservoir properties
Log quality control, lithology interpretation, porosity, saturation, net pay and rock typing: the well input to every reservoir model.
Integrated static reservoir models
Define reservoir properties from geological, geophysical and petrophysical data, with facies, property models and volumetrics.
Performance, development and reserves
Predict reservoir behavior, plan field development and quantify what can be recovered.
Stress, pore pressure and well stability
Understand subsurface stresses to drill, complete and produce wells safely.
Our studies are supported by our own platforms, EraFlow™ and GeoScan™. Discover our software
How we work
From data to decision
Every study follows the same disciplined path, from data quality control to knowledge transfer.
What we deliver
Structural, geological and reservoir models
Interpretation maps and cross-sections
Volumes with low, base and high cases
Production forecasts and development scenarios
Technical report with methodology, assumptions and uncertainties
How we work
Data inventory and quality control
Project setup and standards
Interpretation, modeling or simulation
Technical report
Review and knowledge transfer with your team
Why it matters
Decisions grounded in integrated data
Uncertainty ranges made explicit
Resource and reserve evaluation aligned with SPE-PRMS
Support for exploration, development and investment decisions
Knowledge that stays with your team
Discuss your subsurface study
Tell us about your field, your data and your questions, and we will propose the right studies, a team and a schedule.