AFA Documentation
Breadcrumbs

MASLO autoFMB

Introduction

AFA requires at least 1 Project and 1 Group to perform any analyses or simulation. Please refer to Create a Project and sub-topics if required.

STEP 1: Select MASLO autoFMB

The oil FMB is part of the MASLO series of modules as shown below:

image-20250611-004209.png

STEP 2: Data View

Data View is the first tab in most modules. It shows all the major data sources imported for this well (pressures, rates, etc). Some specific items are:

  1. Options to select which axis a data set below (left or right)

    image-20250610-001525.png

STEP 3: Input Grid

The user must specify all the PVT and rock properties shown below to proceed to the analysis or “FMB Output“ tab. On this tab, there are:

  1. Defined Parameters

    1. These are generally parameters given by the user including

      1. Net Pay

      2. Porosity

      3. Fluid Saturations and

      4. https://predico.atlassian.net/wiki/pages/createpage.action?spaceKey=AFAUM&title=Rock%20%28Formation%29%20Compressibility&linkCreation=true&fromPageId=156827651

  2. PVT inputs and general PVT Correlations and Calculations including recombination calculations.

  3. Gas PVT Plots - viscosity, density, z-factor etc

  4. Water PVT Plots - viscosity, density, etc

  5. Oil PVT Plots - viscosity, density, solution GOR, etc.

  6. autoRTA: Langmuir Isotherm (not enabled for oil)

  7. autoRTA: Wellbore Model

STEP 4: Analysis Tab

The Analysis tab allows the user to perform the actual analysis. There are four (4) main components to autoFMB tab:

4.1 FMB Results

  1. Smart-Fit Option - Default status is on. Using data science three full FMB’s are performed to provide low, medium, and high estimates.

  2. Drainage Area and Permeability results from automaton

  3. OOIP and volumetric results from automation.

    1. Stabilization time is also displayed which represents the time to Boundary Dominated Flow.

  4. Plot of FMB results

  5. FMB: Productivity Index Plot

image-20250611-002704.png

Engineering Tips

4.2 Data Table of Results

Simply a tabulation of results for all three analyses. You can select to view any sensitivity low, medium or high.

image-20250611-003438.png

STEP 5: Forecast Tab

The forecast tab simply generates a forecast past the history match period.

The forecast tab simply generates a forecast past the history match period. It contains

  1. The Economic Cut-off

  2. Summary of results

  3. Display of history match and forecast sensitivities (see RTA Sensitivities )

image-20250611-003843.png


The advanced AFA analytics actually performs and produces three (3) independent forecasts!

See Also: