Extract PdCum Item To Zone

The Extract PdCum Data to Zone Tool extracts production cum data to a zone data item.  As a zone data item, these values can be used in other calculations or mapped.  

To open the Extract PdCum Item to Zone Tool, select Compute>From Production>Extract PdCum Data to Zone from the menu bar at the top of the Main Module.

Data tab

Depth Selection Method

This section determines how the tool finds pd cums for the zone data item.  

Extract Within Zone Depths - This option finds pd cums that are within the interval definition for the zone selected on the "Zone" dropdown.

Extract Matching Formation Name - This option finds pd cums that match the formation name or names selected on the "Formation Names(s)" list to the right.

Extract Within Zone Depths and Matching Fm Name - This option finds pd cums that both match the formation name or names selected on the "Formation Names(s)" list AND are within the interval definition for the zone selected on the "Zone" dropdown.

Formation Name(s)

When either the "Extract Matching Formation Name" or  "Extract Within Zone Depths and Matching Fm Name" depth selection methods are used, this tool will use the prod cums that match the names selected on this list.

Zone

This dropdown sets the zone that will contain the data item extracted from the production cum.  When either the "Extract Within Zone Depths" or  "Extract Within Zone Depths and Matching Fm Name" depth selection methods are used, this tool will use the zone interval definition set on the Zone Maintenance Tool.

Select Variables to Extract

This list selects the variables to write to the selected zone.  

Options tab

This section determines how the tool handles multiple production cums that match the criteria set on the Data tab.

 
Choosing the First PdCum Record (not by date) - This option only uses the first pd cum in the database.  This won't necessarily be the earliest record or even the best record - only the first in the database.

Summing CUMS fom Multiple Matching Records - When this option is selected, Petra will sum the cumulative values together.

Storing Each matching Record in a Different Zone Item - This option will store multiple PdCum records in multiple data items.  Petra will automatically append "_1", "_2", and on to the multiple zone data items.

Choosing PdCum With most Recent Date - This option will only store the data from the production cum with the most recent date.

Use FmName (AltName) for Zone Item Name - 

Substitute TD if Missing Zone Base - This option forces Petra to use the total depth (TD) as a substitute for missing zone base values.  This can have a significant effect on calculations that use zone boundaries, including isopach and log calculations.