Simulation Planning

Reservoirs Models can be large and complex so it is wise to begin with simplest model and coarsest reservoir description (model refinements can be added later). Accuracy of the simulation depends upon input not the sophistication of model.

Important factors for a successful simulation include:

Major steps in the conduct of a simulation study:

Input Data Gathering

Data required can be classified into three groups:

  1. reservoir rock properties
  2. fluid properties
  3. field production history

Primary Data Required for a Reservoir Simulation Study

Laboratory Measurements

Layer & Cell Grid Data (Note: rock data within grid cell assumed uniform)

Production History Data

Source of Common Reservoir Data

1. Permeability - pressure transient testing, core analyses and permeability vs porosity crossplots

2. Porosity - core analyses and petrophysical analyses

3. Relative permeability - laboratory core flow tests and history matching by iterative simulation runs

4. Capillary pressures are determined from laboratory core flow tests

5. Saturations are determined by petrophysical analyses, conventional & pressured core analyses and single well tracer tests

6. PVT data sources are from laboratory analyses of recombined samples, analogs from similar reservoirs and standard correlation charts (SPE handbook)

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Updated January 1999
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