Equipment & Software for Geophysical Surveys: Design, Manufacture, Support, Supply
Software for seismic data modelling Tesseral Engineering
Tesseral Engineering is customized for near-surface, much more affordable version of the World's most popular oil & gas full-wave modelling software package Tesseral. The program allows one to simulate the initial seismic data for media of any complexity in order to test the capabilities of the selected acquisition system for geological problems solution. Modelling at the work planning step enables to determine the optimal acquisition system, and at the interpretation stage − to make sure that it is adequate and reliable for particular problem solution. The engineering version of the software package works with 2D models of any length, depth up to 300 m and a maximum number of channels in the active spread equal to 101, which more than enough covers almost the entire range of shallow seismic tasks.
Tesseral Engineering implements accurate and fast calculations of 2D synthetics using a variety of methods (more than 10), ranging from ray tracing to viscoelastic modelling, taking into account 3D TTI anisotropy and several 3D fracture systems, which enables performing modelling of arbitrarily complex geological media in the shortest possible time, including a combination of solids and liquids, with any number of boundaries of any geometry. Flexible toolkit for building a studied medium allows one to use drilling data or well logs, create continuous layers and closed-loop configurations with a fixed or complex distribution of physical properties, such as P- and S-wave velocities, density, damping parameters, porosity with fluid properties, fractures, and Thomsen anisotropic parameters. The software supports importing a model from txt or SEG-Y files and using raster images as a background for drawing model polygons. The modelling method is selected automatically based on the properties of the model, the problem and the expected results.
The user has access to various options for acquisition systems - sources and receivers can be located on the surface of a model, in a water column, at the bottom of water area or in boreholes of any geometry. Each receiver can be defined as a 1/2/3C geophone or hydrophone. Users can set the frequency and signature of the source, assign it as omnidirectional, directional dipole / monopole, or in the form of symmetric oscillations of lateral stresses of a small volume. It is also possible to simulate a solid extended source to imitate the propagation of plane waves or exploding horizons, resulting in a time section t0.
When using Tesseral Engineering at the interpretation stage, the user can upload the section obtained as a result of processing real data, add physical properties and targets (karsts, faults, fracture zones, taliks, etc.) into it, perform modelling and compare the calculated seismic gathers with real ones. Subsequent processing of synthetic gathers allows determining the reliability of interpretation and the limits of capabilities of the given acquisition system on a specific section when solving the geological or geotechnical problem.
Tesseral Engineering allows users to flexibly customize the visualization of calculated synthetic gathers, adjust the palette and gain in different ways, add noise, random time shifts of traces, or simulate receiver grouping. Built-in tools enable to evaluate the dynamics of wave propagation in the geological model and perform detailed analysis of the seismic record components as well as to determine the features of wanted waves and interference waves on synthetic and real seismic gathers. It is also possible to sort traces, convert from times to depths and backwards, split or combine seismic gathers and calculate their differences. The calculated synthetic data is saved in SEG-Y format. The user can also visualize the wave fronts propagation in the model’s body, as well as save it in the form of snapshots or videos.
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Features |
Version of Tesseral |
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|
2D |
Engineering |
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|
Depth model building |
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Building a new model |
+ |
+ |
+ |
|
Creation of a
simple 2D model |
+ |
+ |
+ |
|
Creation of a
model from a seismic file |
2D |
+ |
2D |
|
Creation of a
model from maps |
- |
+ |
- |
|
Creation of a
model from well data |
- |
+ |
- |
|
Creation of a simple flat layered model from LAS file |
+ |
+ |
+ |
|
Creation of a
model from SPS-file |
- |
+ |
- |
|
Creation of a model from underlying picture |
+ |
+ |
+ |
|
Hybrid method
for model creation |
- |
+ |
- |
|
Loading model
from other formats |
+ |
+ |
+ |
|
3D Model
building from maps |
- |
+ |
- |
|
Introducing
vertical gradients in 3D cubes |
2D |
+ |
2D |
|
Introducing
horizontal gradients in 3D cubes |
2D |
+ |
2D |
|
Introducing cylindrical bodies and tetrahedrons
in 3D SEG-Y cubes |
- |
+ |
- |
|
3D model building from well data |
2D |
+ |
2D |
|
Building a thin
layered 3D model |
2D |
+ |
2D |
|
Polygon
creation and editing |
|||
|
Polygons of different
types: top & bottom, top, bottom, closed loop (object), line (deep break) |
- |
+ |
- |
|
Manual creation of
polygon |
+ |
+ |
+ |
|
Changing polygon’s shape |
+ |
+ |
+ |
|
Moving / copyong a polygon |
+ |
+ |
+ |
|
Deleting a polygon |
+ |
+ |
+ |
|
Editing polygon’s
properties |
+ |
+ |
+ |
|
Anisotropic / fracture / absorption parameters |
+ |
+ |
+ |
|
Order of polygon overlapping |
+ |
+ |
+ |
|
Base points (interpolation
of properties) |
+ |
+ |
+ |
|
Base points (interpolation of properties taking into
account the shape of the reservoir boundaries) |
- |
+ |
- |
|
Building
polygons from
well strata intersection data (tops) |
- |
+ |
- |
|
Building polygons from well logs (thin layering) |
+ |
+ |
+ |
|
Thin layering in
raster model from well logs |
+ |
+ |
+ |
|
Building model from 2D / 3D gather |
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|
Building model
from seismic gathers |
+ |
- |
- |
|
Specify the polygon’s
components by underlying depth velocity model SEG-Y |
- |
+ |
- |
|
Thomson-Tsvankin’s Anisotropy
Parameters |
- |
+ |
- |
|
Porous Medium Parameters |
+ |
+ |
+ |
|
Creation
of acquisition geometry |
|||
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Receivers move with source |
+ |
+ |
+ |
|
Receivers at fixed position |
+ |
+ |
+ |
|
Zero offset |
+ |
+ |
+ |
|
VSP |
+ |
+ |
+ |
|
VSP with ascending receivers |
- |
+ |
- |
|
VSP dipole |
- |
+ |
- |
|
Load acquisition
geometry from gathers |
- |
+ |
- |
|
Load acquisition scheme from SPS files |
- |
+ |
- |
|
Standard dialogue box for acquisition geometry |
- |
+ |
- |
|
Synthetic gather calculation |
|||
|
2D Vertical Incidence |
+ |
+ |
+ |
|
2D Scalar |
+ |
+ |
+ |
|
2D Acoustic |
+ |
+ |
+ |
|
Acoustic without multiples |
+ |
+ |
+ |
|
2D Elastic |
+ |
+ |
+ |
|
2D Elastic Anisotropic |
+ |
+ |
+ |
|
2D Visco-Elastic |
+ |
+ |
+ |
|
2D Eikonal Ray Tracing |
+ |
+ |
+ |
|
2.5D Elastic/Elastic Anisotropic + Visco-Elastic |
+ |
+ |
+ |
|
3D Vertical Incidence |
- |
+ |
- |
|
3D-3C Acoustic, Elastic |
- |
+ |
- |
|
3D-3C elastic method for VTI/HTI mediums |
- |
+ |
- |
|
Haskel-Tomson |
- |
+ |
+ |
|
3D-3C visco elastic method |
- |
+ |
- |
|
2D and 3D AVO-modelling |
+ |
- |
- |
|
Source wavelet |
+ |
+ |
+ |
|
2D ray tracing |
|||
|
Ray path display in Frame Model |
- |
+ |
- |
|
Ray path display in gathers |
- |
+ |
- |
|
Creation of first-arrival
curve |
- |
- |
- |
|
3D seismic survey design and planning |
|||
|
Creation of 3D
survey design |
- |
+ |
- |
|
Loading map using backgroud picture |
- |
+ |
- |
|
Choosing 3D survey design |
- |
+ |
- |
|
Marine surveys |
- |
+ |
- |
|
Moving and rotating
3D survey |
- |
+ |
- |
|
Editing shot and
receiver stations |
- |
+ |
- |
|
Change direction
for shot and receiver lines |
- |
+ |
- |
|
3D recording patch design |
- |
+ |
- |
|
Load survey from SPS-file |
- |
+ |
- |
|
Load survey from SEG-Y file |
- |
+ |
- |
|
3D survey export to SPS-file |
- |
+ |
- |
|
3D survey export
to KML-file |
- |
+ |
- |
|
Survey planning |
- |
+ |
- |
|
Dialog “Fold Calculation Properties” |
- |
+ |
- |
|
Dialog “Fold display
options” |
- |
+ |
- |
|
Bin grid statistics |
- |
+ |
- |
|
Selected bin informartion |
- |
+ |
- |
|
Plot statistics |
- |
+ |
- |
|
Manipulation with acquisiyion geometry |
- |
+ |
- |
|
Changing position of inline/crossline axes |
- |
+ |
- |
|
Changing
coordinates of the shot/receiver |
- |
+ |
- |
|
Changing the
depth of shots/receivers |
- |
+ |
- |
|
3D ray tracing modelling | |||
|
Previewing 3D velocity model |
- |
+ |
- |
|
Loading the reflecting surface |
- |
+ |
- |
|
3D ray tracing simulation |
- |
+ |
- |
|
Viewing the illumination map |
- |
+ |
- |
|
Viewing the rays |
- |
+ |
- |
|
Source grouping for
3D modelling |
- |
+ |
- |
|
Double couple sources in 3D modelling |
- |
+ |
- |
|
Using the same moment tensor for all sources |
- |
+ |
- |
|
Using 2D double couple sources for 3D modelling |
- |
+ |
- |
|
3D full wave modelling |
|||
|
3D model as a
seismic cube |
- |
+ |
- |
|
Design 3D acquisition
geometry |
- |
+ |
- |
|
Setup modelling procedure and boundaries |
- |
+ |
- |
|
Run 3D
simulation on Windows PC |
- |
+ |
- |
|
Run 3D simulation
on Linux Cluster |
- |
+ |
- |
|
Processing of seismic gather |
|||
|
Saving Model Frame
into a 2D grid of seismic format |
+ |
+ |
+ |
|
Copy gather to в SEG-Y format |
+ |
+ |
+ |
|
Split seismogram
by shot gathers |
+ |
+ |
+ |
|
Split seismic gather
into pieces of limited size |
- |
+ |
- |
|
Merge seismic gathers |
+ |
+ |
+ |
|
Cut out cube /
section |
- |
+ |
- |
|
3D replication |
- |
+ |
- |
|
SEG-Y file resampling |
- |
+ |
- |
|
Difference of 2 seismic
gathers |
+ |
+ |
+ |
|
Import / export traces coordinates |
- |
+ |
- |
|
Write visible coordinates
to trace headers |
- |
+ |
- |
|
Cut profile from
3D seismic gather |
- |
+ |
- |
|
Export profile
to 2D seismic file |
- |
+ |
- |
|
Band-pass filter |
- |
+ |
- |
|
Velocity model |
|||
|
Average velocities from model |
+ |
+ |
- |
|
Depth-to-Time / Time-to-Depth
conversion |
+ |
+ |
+ |
|
3D interpolation |
- |
+ |
- |
|
Processing of seismic gather |
|||
|
Gathering |
+ |
+ |
+ |
|
Stack (time domain) |
+ |
+ |
- |
|
Kinematic corrections
(normal moveout) |
+ |
+ |
- |
|
Stacking |
+ |
+ |
- |
|
CMP stack |
+ |
+ |
- |
|
Dip moveout stack |
+ |
+ |
- |
|
2D/3D migration |
+ |
+ |
- |
|
Time pre-stack
Kirchhoff migration |
+ |
+ |
- |
|
Depth pre-stack
Kirchhoff migration |
+ |
+ |
- |
|
2D converted
duplex wave migration |
+ |
- |
- |
|
Duplex wave
migration from scattered waves |
+ |
+ |
- |
|
Depth 3D VSP migration |
+ |
+ |
- |
|
Trace-wise procedures |
+ |
+ |
+ |
|
Manual (automated) muting |
+ |
- |
- |
|
Zero seismic cube
above surface |
- |
+ |
- |
|
Zero seismic cube
under surface |
- |
+ |
- |
|
Frames |
|||
|
Model Frame – depth
velocity model |
+ |
+ |
+ |
|
Frame Seismic – displaying
files with seismic data |
+ |
+ |
+ |
|
Map Frame – stratigraphic
surface maps |
- |
+ |
- |
|
3D View Frame –
3D objects visualization |
- |
+ |
- |
|
Geophysical database |
- |
+ |
- |
Other