Place Drillholes

This command generates drillholes in the drawing one at a time with a series of command line prompts. If the drillhole data is available in digital format, it is quicker to import the information with the Drillhole Import command. When the command is executed, the below dialog will appear.

Method to Locate Strata: This option determines which prompt you will receive to define the limits of each strata.

Prompt for: When these options are enabled, you will receive additional prompts when entering drillhole information.

Non-Key Strata: When this option is disabled, you will be prompted to enter information only for key strata. In this scenario, you will be prompted to enter the thickness and bottom depth/elevation of the key strata, with non-key strata filling in the gaps between the key strata. The non-key strata will be named automatically. For example, a key strata named "Strata A" will be overlain by a non-key strata named "Strata A_OB". When this option is enabled, you will be prompted to enter information for both key and non-key strata, and you will be able to assign a specific name to the non-key layers.

Bed Name: When this option is enabled, you will be prompted to enter a Bed Name for each strata. Bed names are used to group strata together.

Drillhole Type: When this option is enabled, you will be prompted to set a drillhole type. This controls appearance of the drillhole symbol, which can be configured in the Define Lookup Database command.

Enter Values in: This option sets the units of the length values being entered.
After clicking OB, you will receive a series of command line prompt. You will first specify the X and Y location of the drillhole followed by the surface elevation and drillhole description. If drillhole definition includes additional descriptions you will be prompted for values, these values are optional, so you may press Enter to continue. After entering this drillhole header information, a loop for entering the strata from top to bottom begins. If an undefined strata name is entered, there is an option to define that strata from there (see Define Strata for more on strata definitions). When all the strata are entered, press Enter to exit the loop. This draws the drillhole in the drawing as an INSERT entity in the current DRILLHOLE layer with all the data attached. From there, another drillhole can be entered or the routine can be exited by pressing Enter. At any time in this routine, entering 'Undo' backs up the prompting sequence.

Prompts

File Selection Dialog
Choose a drillhole configuration file.
Enter or Pick Drillhole x,y location (Enter to End): 5000,5000
Enter Drillhole surface elevation ('U' to Undo): 890.3
Enter Drillhole description ('Undo' to Undo): CH-11 This field is optional.
From here begins a loop to enter the strata in top to bottom order.
Enter strata name (Enter to End, 'Undo' to Undo): OV
Strata OV is a Non-Key strata. OV was found in the strata definitions as a Non-Key strata.
Enter bottom elevation of OV ('U' to Undo): 883.7
Now enter the Non-Key attribute values for the attributes defined by Define Drillhole.
Enter value for OV attribute ACID ('U' to Undo): 1
Enter value for OV attribute BASE ('U' to Undo): 2
Enter strata name (Enter to End, 'Undo' to Undo): C
Strata C is undefined? Define now (<Yes>/No)? No Defining strata C is optional.
Is C a Key or Non-Key strata (Key/<Non-Key>/Undo)? Key All must be set as either Key or Non-Key.
Enter bottom elevation of C ('U' to Undo): 879.7
Now enter the Key attribute values.
Enter value for C attribute BTU ('U' to Undo): 10000
Enter strata name (Enter to End, 'Undo' to Undo): press Enter if C is the last strata in the drillhole. Otherwise enter the next strata name.
Enter or Pick Drillhole x,y location (Enter to End): press Enter to exit Or specify another location for the next drillhole.

Pulldown Menu Location: Drillhole
Keyboard Command: chplace