see below.

SEG-2_SEG-Y (5).exe

If you have measured relative or absolute geophone elevations, you can incorporate these into your velocity model in Plotrefa to produce more geologically realistic results.

📄 Step 1: Prepare the Elevation File

Create an ASCII text file with two columns:

The left column contains geophone horizontal positions (in meters or feet).

The right column contains the corresponding elevation values.

Example:

0.0 100.0
5.0 101.2
10.0 101.5
...
100.0 89.0

✅ Tip: While it’s recommended to have an elevation for each geophone, it’s not strictly required. Plotrefa will interpolate missing elevations as needed.

📥 Step 2: Import the Elevation Data

1. Open Plotrefa.

2. From the top menu, go to:
   Velocity model > Import elevation data file

3. Navigate to your file and double-click it to import.
   📌 Note: There is no default file extension, so ensure your file is visible in the dialog.

4. The elevation profile will now display alongside your data.

🎯 Step 3: Interpret Your Data

Once your elevation profile is imported:

Proceed with your velocity modeling or time-term inversion.

The resulting velocity model will be drawn relative to the elevation profile, accounting for topography.

Example Outputs:

SeisImager/2D Software Packages

• Standard version: for use on seismograph with mouse or PC with mouse; allows up to 16K samples per trace, 128 traces per shot, 360 traces per interpretation, and 65 shots per interpretation.
• Professional version: for use on seismograph with mouse or PC with mouse; allows virtually unlimited input up to 2M samples per trace, 48K traces per shot, 48K traces per interpretation, and 48K shots per interpretation.
• Lite version: included with purchase of Geometrics Windows-based seismographs. For use on seismograph with mouse or PC with mouse; allows up to 16K samples per trace, 64 traces per shot, 51 traces per interpretation, and 12 shots per interpretation.
• Demonstration version: for use on PC with mouse, may be launched 15 times; same allowances as Lite version; no printing capability.
Note: The number of shots per spread and spreads per interpretation are dependent on the actual trace number used. The Standard and Professional versions are also available for rent.

SeisImager Software Suite* Refraction & Surface Wave Data Analysis Software 40 hr - $200 75 hr - $300 250 hr- $500.

See Rentals - Geometrics : Geometrics and email rentals@geometrics.com to set up an order.

I have attached the instructions that are sent with a new order acknowledgment. (Installation and Transfer)

The license is assigned to a specific Registration ID once fully purchased. This ID can be assigned to a person (we like to know for our own records) if possible but not required and can be transferred to other PC’s as needed. The ID works like a softkey dongle. The software can be active on only one machine at a time.

I attached a simplified “Steps with windows_SI Transfer procedure that shows how the software can be moved. The PC must connected to the internet to affect the first part of the transfer (which removes the ID from the PC, making available for the next). Then to place the Reg ID on the next computer is just following the original registration process.

Do not lose the ID. Make sure that the ID has been removed before a disc is reimaged or an employee leaves with the PC. If for some reason the Reg ID has to be reset, (computer dies before the ID can be removed) I will require a statement and an end user then for my records.

I am available to discuss if needed at the number below 0700-1500 PST.

Best,

RandL P Rivera
Customer Service Repair Supervisor
+1 (408) 428-4254 (direct)
+1 (408) 954-0522 (office)
support@geometrics.com

0.45 8
1.45 8
2.45 1
3.45 5
4.45 5
5.45 31
6.45 21
7.45 23
8.45 31
9.45 22
10.45 8
11.45 11
12.45 12
13.45 8
14.45 3
15.45 32
16.45 33
17.45 42
4.9 C Clay
17.45 G Gravel

Log files can be loaded with or without headers. To load a log file, navigate to the Drawing Tool menu. After loading, use the Select Tool (represented by the arrow icon in the top toolbar) to interact with the objects in the plot.

The Select Tool allows you to select and edit objects such as logs. To modify a log, double-click near the base of the comment line associated with the log. A configuration menu will appear, where you can specify the data type—N-value, Line, or Soil Column—and adjust axis settings and labels as needed.

Please see the attached instructions. Registration ID's are typically found on the customer invoice, but can also be found using your order number or seismograph SN and company name here.