O&G Upstream Data Services

O&G Upstream

Sigma O&G Upstream data services

Sigma is sweeping a wide range of Geoscience and Engineering Services including Borehole Seismic (VSP) processing/interpretation, Surface Seismic processing/ interpretation, Geological Studies (Image log processing/interpretations, Fracture Modeling), Geomechanical analysis, etc.), Petrophysical Evaluations, Reservoir Engineering Services and Master Development Plan (MDP) preparation.

What makes us different from the others is the vast knowledge and experience in each discipline and also possessing the leading-edge software of the moment in the O&G industry, providing the best chance to extract the maximum value from any acquired data set.

Sigma will provide CLIENTS with unbiased quality check on the acquired data and highlight any subsequent data quality impact on the interpretation. The interpretation will be conducted on reliable data, and poor-quality data will be discussed with CLIENT team and recommendations for future acquisition improvement will be provided.

Our main areas of expertise in data services and consultancy of upstream oil and gas are:

Petrophysical Study and Modelling

Image log processing and Interpretation

Geomechanical Study and Modelling

Drilling and Completion study and analysis

Borehole Seismic Services

Surface Seismic Interpretation

Static Modelling

Dynamic Reservoir Simulation

Petrophysical Study and Modelling

  • Data base management
  • Petrophysics Modelling
  • Multi Well Interpretation
  • Rock Typing based on electrofacies
  • Flow unit determination and layering
  • Permeability Estimation
  • Saturation Height Function
  • Initial fluid contacts and pressure data analysis

Image log processing and Interpretation

  • Fracture Analysis
  • Porosity spectrum Analysis
  • Permeability Image log analysis
  • Lamination Analysis
  • PoroTex (Heterogeneity) Analysis
  • Vug Integrity Analysis

Geomechanical Study and Modelling

  • Pre-Drill/ Post-Drill Borehole Stability Assessment
  • Trajectory sensitivity analysis
  • Hydraulic Fracturing Feasibility Study and modeling
  • Sand Management/ Sand Control Program
  • Casing failure (collapse/shear) study and modelling
  • Reservoir compaction study and modeling
  • 3D/4D coupled reservoir geomechanical modeling

Drilling and Completion study and analysis

  • Feasibility studies
  • Technology review
  • Drilling/Completion program preparation
  • Workover Planning
  • Drilling Optimization
  • Project Tendering/Evaluation

Borehole Seismic Services & Surface Seismic Interpretation

  • Model-based / 3C VSP processing
  • Offset, Walk-above and Walkaway VSP processing
  • Walkaway VSP for anisotropy (VTI/TTI)
  • Walk-around VSP for HTI anisotropy
  • Seismic AVO Inversion
  • Seismic AVOAZ Inversion
  • Seismic Stochastic Inversion

Static Modelling

  • Depth Maps, zonation and layering
  • 3D Geocellular Building
  • Facies & Property Modeling
  • Data Analysis on Up-scaled Facies Logs
  • Model QC and Validation
  • Volume Calculation
  • Uncertainty and Sensitivity Analysis

Dynamic Reservoir Simulation

  • Model Construction
  • Model Initialization and Validation
  • Single Well and Cross Sectional Modeling
  • Full Field Model History Matching
  • Prediction Scenarios
  • Well Planning and Screening of Different Scenarios
  • Economic Analyses and Selection of Executive Scenario