Setting Default tables and Fields

  

Changing these default interval tables can be useful from an administrative perspective.  Changing these tables ensures that all new projects will be created with the same interval tables and fields, though these can always be changed inside Petra.  

When creating a new project, Petra looks at a file called INTDATA.DEF located in the Parms directory.  On most standalone installations, this will be located in C:\geoplus1\Parms. This file contains the default tables and fields that will be created in a new project.

Do not edit the default interval table file (INTDATA.DEF).  Instead, copy the INTDATA.DEF file to a new file called INTDATA.USR.  Make all changes to INTDATA.USR.  Petra looks first for INTDATA.USR before looking for INTDATA.DEF.

The default version of this file contains three tables:

  • LITH
  • CORE
  • PALEO.

Petra reads the INTDATA file and builds interval data based on comma delimited values.

TABLE

– This signifies that the entry is for a new table.

Table Name

– This is the name of the table.  It is a good idea to separate tables based on genetically related data, such as mudlogs, core descriptions.  Remember that tables, unlike zones, are completely independent of stratigraphy, so it is probably easier to lump all related data together rather than break out intervals based on specific formations.

Table Description

“” Sets a brief description of the table.  In the example, the LITH fields description is Lithology Data.  Remember to put quotation marks around the description.

FIELD

– This just signifies that the entry is for a new field.  Make sure all new field entries are prefaced by FIELD.

Kind Fields

Store three kinds of data: Real Values, Date Values, or String Values.  The letter here tells Petra what kind of data this field will store for Real values,D for Date values, and S for String values.  Real values simply store numbers, such as porosity or permeability.  Dates store calendar days as MM/DD/YYYY.  String values store text, like core descriptions.  

Name

Name of the field.

SRC

Sets the user source for the specific field.  User sources are useful for distinguishing between different users interval data in a multiuser environment.

Field Description

Sets a brief description of the field.  In the example, the Recov fields description is amount of core recovered. Remember to put quotation marks around the description.

UNITS

Sets the units of the field.

DECIMALS

Sets the number of decimals shown for real value (numerical) data.  Though it is a good idea to set this value to 0 for string and date fields, it is not necessary