New Empty Drillhole Project

Use the DH-Data > New Project > New Empty Project menu option (geogxnet.dll(Geosoft.GX.DrillHole.DHNewPrj;Run)*) to create a new drillhole project and its associated Collar Database. This is the first step in loading drillhole data.

Drillhole - New Empty Project

Project	Name of the new drill hole project, the control can be used to browse to a specific directory to place the project in.
Maximum holes	Maximum number of holes (Default 1000)
Maximum data fields	Maximum number of data fields (Default 100)
Directory	Specify the directory in which to create the new collar table.

Application Notes

Each kind of drillhole data is stored in its own database. These databases are linked by a common project name, which appears at the start of the individual database names. For instance, in a project named "Prospect" the following databases could be created:

Prospect_Collar.gdb Collar information

Prospect_Survey.gdb Hole dip-azimuth survey information

Prospect_XYSurvey.gdb Hole XYZ survey information.

Prospect_Assay1 Assay information (the "Assay" label is user-specified)

Prospect_Assay2 Other assay information (etc.)

The maximum number of holes and data fields is a limit to reduce the size of the database index. Please choose reasonable values (200-500 holes, 25-200 fields) or the index could be very large and slow to load.

Reset the Maximum Number of Holes or Data Fields

If you find, after you have created a project, that the initial number of holes (database lines) or data fields (database channels) is insufficient, or that your data sets is so large that it fails to import due to size considerations, you can increase any of these parameters manually by creating and running a scipt (*.gs) file in the following format:

SETINI         DHPROJECT.HOLES="2000"
SETINI       DHPROJECT.CHANNELS="50"
SETINI       DHPROJECT.PAGE_SIZE="4096"

Valid "PAGE_SIZE" values are 64, 128, 256, 512, 1024, 2048 and 4096. By default, the PAGE_SIZE for assay databases is 1024, and for survey databases is 64.

Once you have run the script file (under the "GX" menu), you can re-import to a new database, and any new database will be created with the number of holes and data fields at least as large as the values specified above.