| |
|
|
| VELMAP |
|
|
| |
|
|
 |
|
 |
|
VELMAP is a 2D/3D VSP data processing,
velocity model mapping, and imaging program. VELMAP
interactively creates a depth velocity model for prestack depth
migration. Initially it applies a nonlinear tomography
approach to invert a velocity model from the first breaks and
reflection traveltimes of VSP data. Users can then
interactively modify the model with the reference of migration
image and further refine the model with tomography. The
objective is to create an image-consistent velocity model.
VELMAP also includes a data preprocessing
workflow with over 40 functions that can be selected, wave-equation migration for PP and PS reflections, and
a post-processing workflow. The most recent version
includes the capability of the interferometric conversion that
converts down-going multiples of VSPs to surface seismic. The current features include
the following: |
| |
|
| |
|
VELMAP FAQ's |
| |
|
| VELMAP v2.0 Release |
|
06/28/2004 |
|
|
| VELMAP v2.1 Release |
| 07/23/2004 |
| |
|
| Other VSP Solutions: |
|
|
Building geometry and picking first
breaks and multiple reflections |
VECON |
|
Preprocessing for 3C or single
component of shot or receiver gathers |
|
|
First-arrival and reflection
traveltime tomography |
VISUS |
|
Constraining tomography using well
logs and/or geological structures |
|
|
2D prestack wave-equation migration
for PP reflections and PS conversions |
|
Interactive velocity model update
for migration |
|
|
Automated workflow for data
preprocessing and post-processing |
|
|
|
|
|
Other features that will be included in VELMAP in near future: |
|
|
|
|
|
Initial migration model building
from well logs and/or surface seismic images |
|
|
3D Kirchhoff depth migration for
common-shot gathers |
|
|
VSP CDP stacking for 2D/3D imaging |
|
|
|
|
|
For answers to some general questions, please view
VELMAP FAQ's.
VELMAP is designed for Windows and Linux. For any evaluation
request, please contact:
support@geotomo.com |
|
|