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Introduction

In order to calculate HCPV (i.e. hydrocarbon pore volume) for the reservoir there has to be a reservoir model. This is a folder with reservoir horizons in a layer model and folders with petrophysical parameter grids.

The parameter grids are connected to the zone between two horizons and the zones in the layer model start with the first horizon. There are seven horizons and six zones; therefore the last horizon will have no petrophysical parameter grids associated. The parameter grids can be found in the folder 09_Petrophysical parameters.

 

The petrophysical parameter grids in the volumetric model are random generated between 0.1 and 0.6 approximately. That corresponds to realistic value domains. In real cases the petrophysical parameter grids are gridded from well data, f.inst. using the gridding panel Simple points and lines gridding

Exercises


 Layer model and cross sections illustrating a zone


Exercise

Calculate hydrocarbon pore volume within a license.

  1. Right click on Depth data > Grids interpretation and activate Volume layer model calculation.
  2. Set Type of volume to be calculated to Between plane1 and plane2.
  3. Check in 1: contact and write in the level value 2700 (suitable for this project). Also called top contact.

  4. Check in 2: contact and write in the level value 3800 (suitable for this project). Also called bottom contact.

    • If there is only one contact plane you just check in 1: contact.
    • There are two types of calculation:
    1. From top reservoir to Top contact.
    2. Between Top contact and Bottom contact.
  5. Check in Apply folder or single area grid or outline for licenses or sub areas.
  6. Browse in 01_Cultural Licenses > License 07-18.
  7. Go to page Parameters.
  8. Check in boxes for petrophysical parameters and browse in the corresponding folders.
  9. Check in Expansion oil and set the value to 1.2.
  10. Check in Recovery factor oil and set the value to 0.4.
  11. Click Execute to start calculation.
  12. Go to Result page.

  13. Click on Volume report.

    • Goes default to your home area on disk and is placed in folder. The names are made of parameters set and a time stamp.
    • The folder has a typical name: Volumetric reports_Grids Interpretation_Wed Nov 16 2011.
    • The report has a typical name: VR_Grids Interpretation_2700_3800_Licens 07-18_b_p_n_w_Wed Nov 16 08_55_46 2011.
  14. Take the volume report into a editor and read it.


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