STATIC RESERVOIR MODELS

Tasks
Oil and gas reserves calculations
Planning drilling campaigns (well design and placement)
Risk analysis and uncertainty quantification
Creating framework for fluid flow simulations
Main workflow stages
Gathering, analysis and preparation of the required data, uploading
Structure modeling (reservoir framework)
Creating a grid (3D grid), averaging well data for the grid
(assigning properties to grid cells)
Facies (lithology) modeling
Rock physics modeling
Hydrocarbon reserves calculations

DYNAMIC MODELING

Dynamic or fluid flow models are an integral part of field development project documentation which a license holder or operator company is required to submit to the designated approving authorities. These models are also used to monitor field depletion processes

Tasks
Plan production levels and optimize reservoir depletion rates
Detailed study of in-situ fluid flow dynamics
Study of well behavior and reservoir performance
Evaluation of field development investment risks
Main workflow stages
Gathering, analysis and input control of initial data
Selecting model types
Creating a reservoir model
History-matching including the results of completed geological and technical operations (workover, IOR/EOR, remedial cementing etc.)
Analysis of the current reservoir energy state for the modeled area based on current reservoir pressure maps created from the dynamic fluid flow model
Localization and feasibility studies for remaining recoverable reserves within the planned drilling location
Forecasting and analysis of results
Advantages
Reservoir simulations are a cost efficient tool for increasing the success rate of new wells including the following:
On-the-spot analysis of depletion state for the target reservoir
Identification of remaining reserves, by-passed oil and high-yield sweet spots not drained by nearby wells with the existing depletion pattern
Selection of best well placement strategy and optimum well trajectory based on historic production from offset wells and current areal and vertical sweep
Selection of best net pay intervals for completion
Forecasting well production