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GEOSIGMOID GROUP
  • Subsurface Studies

    Geological & Structural Modeling

    3D structural frameworks

    Reservoir Engineering & Simulation

    Performance and recovery

    Seismic Interpretation (2D, 3D & 4D)

    Imaging the subsurface

    Forecasting & Field Development Plans

    Scenarios and forecasts

    Rock Physics & Seismic Inversion 

    Seismic to reservoir properties

    Resource & Reserve Evaluation 

    Volumes, risks, economics

    Reservoir Characterization

    Petrophysics and reservoir quality

    Geomechanics & Well Stability

    Stresses and wellbore integrity

    Subsurface Studies

    Integrated subsurface studies, from geology to reservoir engineering.

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  • Field Operations

    Rig Inspection & Acceptance

    Compliance and readiness

    Logistics & Field Readiness

    Mobilization and logistics

    Rig Refurbishment & Recommissioning

    Back to safe operation

    Maintenance Planning & CMMS Setup

    Maintenance and CMMS

    Equipment Inspection & Certification

    Critical equipment checks

    HSE Management & Field Compliance

    Safety and compliance

    Drilling & Workover Operations Support

    Technical operations support

    Operational Audits & Troubleshooting

    Audits and performance

    Wellsite Supervision & Company Man

    On-site supervision

    Crew Training & On-the-Job Coaching

    Competent field crews

    Field Operations

    Independent supervision and practical field support, from rig acceptance to HSE.

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  • Software Development
    EraFlow

    EraFlow™

    17 modules, 54 plug-ins

    GeoScan™

    Geoscience data management

    AI & Advanced Subsurface Analytics

    AI/ML for E&P workflows

    Subsurface Digital Platforms & Engineering Software

    Custom platforms and digital twins

    Software Development

    Proprietary platforms and custom software for the subsurface.

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  • Training

    Geology

    Petroleum geology and interpretation

    Production Engineering

    Well and field performance

    Geophysics

    Seismic and inversion workflows

    Drilling

    Well design and performance

    Petrophysics & Reservoir Modeling

    Static modeling and properties

    Digital & AI Subsurface Geoscience

    AI-driven geoscience

    Reservoir Engineering

    Reserves, simulation, optimization

    Multi-Disciplinary Courses

    Customized programs

    Training

    Applied geoscience and engineering courses for industry professionals.

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GEOSIGMOID GROUP
      • Subsurface Studies
      • Field Operations
      • Software Development
      • Training
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    Subsurface Studies

    Resource & Reserve Evaluation

    Quantify resources and reserves with the uncertainty ranges that investors and regulators expect.

    Resource & Reserve Evaluation - illustration

    Resource Assessment

    Estimate in-place volumes and their uncertainty.

    Reserve Estimation

    Assess recoverable volumes by maturity class.

    Risk & Uncertainty

    Build probabilistic scenarios and ranges.

    Decision Support

    Inform investment and development decisions.

    Core Features

    Quantifying volumes and value with confidence.

    • Data Integration

      Integration of well logs, core data, seismic interpretation, inversion products, and geological inputs into a unified reservoir framework.

    • Volumetric Estimation

      STOIIP / GIIP estimation driven by structure, facies, and petrophysical properties.

    • Resource Classification

      Classification of resources (contingent, prospective) in line with industry standards.

    • Reserve Estimation

      Deterministic and probabilistic reserve estimation based on recovery mechanisms and development concepts.

    • Uncertainty & Risk Analysis

      Uncertainty quantification driven by geological, petrophysical, and dynamic parameters.

    • Economic Screening

      High-level economic evaluation to support development and investment decisions.

    • Development Scenario Comparison

      Evaluation of alternative development scenarios driven by reservoir performance and uncertainty.

    Foundation Package

    Everything required for a robust resource and reserve assessment.

    • Data Inventory & QC

      Review and quality control of geological, seismic, reservoir, and production inputs.

    • Volumetrics & Scenarios

      Deterministic and probabilistic volumetric calculations with low, base, and high cases.

    • Recovery Factor Assessment

      Recovery factor estimation driven by reservoir characteristics and development strategy.

    • Resource & Reserve Classification

      Classification of resources and reserves in line with SPE-PRMS and industry reporting standards.

    • Report & Knowledge Transfer

      Technical report documenting methodology, assumptions, results and uncertainties, reviewed with your team. How we work →

    FAQ

    Frequently asked questions

    Clear and concise answers to common questions about our resource and reserve evaluation services, supporting reliable volumetric estimates and informed investment decisions.

    Ask our team

    We provide hydrocarbon resource and reserve estimation, volumetric calculations, reserves classification, and uncertainty assessment for exploration, appraisal, and development projects. 

     Typical inputs include geological and reservoir models, well and production data, petrophysical parameters, fluid properties, and development assumptions. Data QC and validation are part of our process.

     Our evaluations are performed in accordance with internationally recognized standards such as PRMS, ensuring transparent and auditable results.

    Our evaluations provide robust estimates of volumes, risk, and uncertainty, supporting economic assessments, project sanction decisions, and regulatory reporting. 

    Deliverables include resource and reserve estimates (low, best, high cases), volumetric tables, uncertainty analysis, classification summaries, and a comprehensive technical report.

    12+ resource and reserve evaluations completed

    Probabilistic and deterministic volumetric assessments

    Support for internal decision-making, farm-outs, and audits

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    GEOSIGMOID GROUP

    We turn subsurface data into decision-ready intelligence - consulting, field operations, software and training for exploration, development and production.

    Talk to our team →

    Services

    • Subsurface studies
    • Field operations
    • Software development
    • Training

    Platforms

    • EraFlow™
    • GeoScan™

    Company

    • Our origins
    • Contact us

    Offices

    Registered office - Dubai

    GEOSIGMOID GROUP - FZCO

    • Premises DSO-IFZA, IFZA Properties, Dubai Silicon Oasis, Dubai, United Arab Emirates
    • +971 50 890 5982
    • contact@geosigmoid.group

    Office - Tunis

    • IQ Smart Building & Business Center, Space Offices 807, Tunis, Tunisia
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