Equipment & Software for Geophysical Surveys: Design, Manufacture, Support, Supply
Tesseral Pro
Tesseral Pro is designed for 2D, 2.5D and 3D full-wave modeling of seismic data by finite-difference methods, planning system of observations and data processing. The program allows you to set any observation systems, build complex depth models of the geological environment using GIS data, maps of geological surfaces or 2D and 3D seismic velocity models. Tesseral Pro offers an ingenious approach to thin-layered model development that delivers high accuracy and validity of the model while being simple and fast to build. For this, well log data, spatial position and inclination of boreholes, stratigraphic columns, horizon maps, etc. are used.
Tesseral Pro features:
- Design of 2D or 3D surveys with the calculation of maps of multiplicity and illumination of the section
- Evaluation of seismic resolution for complex geology and observation geometry
- Identification of processing artifacts that lead to interpretation errors
- Checking the robustness of any seismic interpretation
- Synthesizing seismic data for software development and testing
- Providing a clear understanding of converted-wave elements in the seismic section
- Modeling AVO-dependence for anisotropic, porous, fluid-saturated, elastic and thin-layered media, as well as for curved boundaries complicated by changes in physical properties
- Modeling seismic records for surface, microseismic, VSP, and high frequency borehole observations
- Building a geological and geophysical model by arbitrary drawing them or from a scanned image, as well as obtaining complex multi-parameter models from available geophysical and geological data, such as velocity cubes, horizon maps, faults, well trajectories and breaks, well logs
- Seismogram calculation and data processing for various types of active and passive sources using a wide range of methods for approximating the wave equation
- Visualization and investigation of wave propagation and ray trajectories
Tesseral Pro allows the user to quickly create a model of any level of complexity by specifying the distribution of P and S wave propagation velocities, rock density, porosity, fluid properties, frequency dependent absorption and Thomsen parameters for transversely isotropic media. Fractures are taken into account by using the effective Schoenberg model. For clearer creation of thin-layered models, various auxiliary data can be used, such as well log data, spatial position and inclination of boreholes, stratigraphic columns, horizon maps, etc.
The available modeling tools allows quickly and accurately calculate the propagation of vibrations in an inhomogeneous medium and obtain 1D / 2D / 3D multicomponent (1C / 2C / 3C) data for various types of active and passive sources based on scalar, acoustic, elastic or elastic anisotropic wave equations. Each computational scheme can additionally include three additional modes:
- Generation of the field of first-arrival times, maximum signal energy, divergence, or rotor of the wavefield, which provide additional information used to calculate the Green's function for Kirchhoff depth migration
- Suppression of SV-waves in the source area, allowing to include / exclude surface waves generated by the source
- Accounting for frequency-independent absorption (quality factor)
Setting Observation Geometry
Arrangement of sources and receivers in orthogonal, diagonal, etc. directions, geometry of 2D and 3D VSP observations, SPS files, site map, satellite images or Google map - can form the basis of an observing system. At the same time, calculations of overlap and illumination maps for target horizons are available.
Mesh model transformations
There are 8 ways to transform data into a grid format, incl. splines, kriging and natural neighborhood.
Wave propagation visualization
Tesseral Pro provides simulated data analysis tools including ray tracing and waveform visualization. Ray-tracing methods complement finite-difference methods by allowing the identification of P-waves or converted waves reflected from targets on synthetic seismograms. Ray paths are rendered and can be grouped by reflective horizon, common shot point, common receiver, or common reflection point.
Processing procedures
Tesseral Pro contains a variety of processing routines, including various trace sorting, NMO / STACK, 2D pre- and post-stack time and depth migrations, VSP migrations, time / depth conversion, DWM duplex and DSWM scattered duplex migrations, and others.
Wave equation solution
3D-3C acoustic and elastic modeling methods provide an approximation of wave propagation in a realistic heterogeneous environment in all directions. This type of modeling can be applied in the study of geological objects such as reefs, salt domes, various types of faults, crevices, steeply dipping faults, etc. in areas where it is necessary to restore accurate 3D reservoir characteristics.
Probing pulse
The user can select the type of the probing pulse and its frequency. Available both as a set of standard impulses (Rikker, Puzyrev, zero-phase, symmetric, minimum phase impulse, etc.), or setting your own, allowing to set complex source signatures and obtain seismograms as close as possible to real data.
Parallel computing
Tesseral Pro allows to perform parallel calculations on multiple computers or cluster processors using a special add-on ("network" version - for Windows or "cluster" - for Linux-clusters), as well as using GPU graphics accelerators.
Tesseral Pro allows you to understand the strengths and weaknesses of the technology used and significantly reduce the time to adapt to new technologies.
An example of a geological model built in Tesseral Pro
Geological model and simulation result in Tesseral Pro
An example of a geological model with superimposed simulated wavefield
An example of a complex geological model
An example of a full-wave simulation result in Tesseral Pro
Example of geological model with listric faults
The result of the full-wave simulation in the Tesseral Pro
An example of visualization of a 3D model with boreholes and well logs
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Features |
Version of Tesseral |
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2D |
Pro |
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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 |
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Polygons of different types: top & bottom, top, bottom, closed loop (object), line (deep break) |
- |
+ |
- |
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Manual creation of polygon |
+ |
+ |
+ |
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Changing polygon’s shape |
+ |
+ |
+ |
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Moving / copyong a polygon |
+ |
+ |
+ |
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Deleting a polygon |
+ |
+ |
+ |
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Editing polygon’s properties |
+ |
+ |
+ |
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Anisotropic / fracture / absorption parameters |
+ |
+ |
+ |
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Order of polygon overlapping |
+ |
+ |
+ |
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Base points (interpolation of properties) |
+ |
+ |
+ |
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Base points (interpolation of properties taking into account the shape of the reservoir boundaries) |
- |
+ |
- |
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Building polygons from well strata intersection data (tops) |
- |
+ |
- |
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Building polygons from well logs (thin layering) |
+ |
+ |
+ |
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Thin layering in raster model from well logs |
+ |
+ |
+ |
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Building model from 2D / 3D gather |
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Building model from seismic gathers |
+ |
- |
- |
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Specify the polygon’s components by underlying depth velocity model SEG-Y |
- |
+ |
- |
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Thomson-Tsvankin’s Anisotropy Parameters |
- |
+ |
- |
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Porous Medium Parameters |
+ |
+ |
+ |
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Creation of acquisition geometry |
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Receivers move with source |
+ |
+ |
+ |
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Receivers at fixed position |
+ |
+ |
+ |
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Zero offset |
+ |
+ |
+ |
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VSP |
+ |
+ |
+ |
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VSP with ascending receivers |
- |
+ |
- |
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VSP dipole |
- |
+ |
- |
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Load acquisition geometry from gathers |
- |
+ |
- |
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Load acquisition scheme from SPS files |
- |
+ |
- |
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Standard dialogue box for acquisition geometry |
- |
+ |
- |
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Synthetic gather calculation |
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2D Vertical Incidence |
+ |
+ |
+ |
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2D Scalar |
+ |
+ |
+ |
|
2D Acoustic |
+ |
+ |
+ |
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Acoustic without multiples |
+ |
+ |
+ |
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2D Elastic |
+ |
+ |
+ |
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2D Elastic Anisotropic |
+ |
+ |
+ |
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2D Visco-Elastic |
+ |
+ |
+ |
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2D Eikonal Ray Tracing |
+ |
+ |
+ |
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2.5D Elastic/Elastic Anisotropic + Visco-Elastic |
+ |
+ |
+ |
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3D Vertical Incidence |
- |
+ |
- |
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3D-3C Acoustic, Elastic |
- |
+ |
- |
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3D-3C elastic method for VTI/HTI mediums |
- |
+ |
- |
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Haskel-Tomson |
- |
+ |
+ |
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3D-3C visco elastic method |
- |
+ |
- |
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2D and 3D AVO-modelling |
+ |
- |
- |
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Source wavelet |
+ |
+ |
+ |
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2D ray tracing |
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Ray path display in Frame Model |
- |
+ |
- |
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Ray path display in gathers |
- |
+ |
- |
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Creation of first-arrival curve |
- |
- |
- |
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3D seismic survey design and planning |
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Creation of 3D survey design |
- |
+ |
- |
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Loading map using backgroud picture |
- |
+ |
- |
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Choosing 3D survey design |
- |
+ |
- |
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Marine surveys |
- |
+ |
- |
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Moving and rotating 3D survey |
- |
+ |
- |
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Editing shot and receiver stations |
- |
+ |
- |
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Change direction for shot and receiver lines |
- |
+ |
- |
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3D recording patch design |
- |
+ |
- |
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Load survey from SPS-file |
- |
+ |
- |
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Load survey from SEG-Y file |
- |
+ |
- |
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3D survey export to SPS-file |
- |
+ |
- |
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3D survey export to KML-file |
- |
+ |
- |
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Survey planning |
- |
+ |
- |
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Dialog “Fold Calculation Properties” |
- |
+ |
- |
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Dialog “Fold display options” |
- |
+ |
- |
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Bin grid statistics |
- |
+ |
- |
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Selected bin informartion |
- |
+ |
- |
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Plot statistics |
- |
+ |
- |
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Manipulation with acquisiyion geometry |
- |
+ |
- |
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Changing position of inline/crossline axes |
- |
+ |
- |
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Changing coordinates of the shot/receiver |
- |
+ |
- |
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Changing the depth of shots/receivers |
- |
+ |
- |
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3D ray tracing modelling |
|||
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Previewing 3D velocity model |
- |
+ |
- |
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Loading the reflecting surface |
- |
+ |
- |
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3D ray tracing simulation |
- |
+ |
- |
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Viewing the illumination map |
- |
+ |
- |
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Viewing the rays |
- |
+ |
- |
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Source grouping for 3D modelling |
- |
+ |
- |
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Double couple sources in 3D modelling |
- |
+ |
- |
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Using the same moment tensor for all sources |
- |
+ |
- |
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Using 2D double couple sources for 3D modelling |
- |
+ |
- |
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3D full wave modelling |
|||
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3D model as a seismic cube |
- |
+ |
- |
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Design 3D acquisition geometry |
- |
+ |
- |
|
Setup modelling procedure and boundaries |
- |
+ |
- |
|
Run 3D simulation on Windows PC |
- |
+ |
- |
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Run 3D simulation on Linux Cluster |
- |
+ |
- |
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Processing of seismic gather |
|||
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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 |
+ |
+ |
+ |
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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 |
|||
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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 |
- |
+ |
- |