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Equipment & Software for Geophysical Surveys: Design, Manufacture, Support, Supply

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Software for seismic data modelling Tesseral Engineering

Main features:

Modelling of all types of waves: converted, surface, tube, multiple
Frequency, shape, character, direction of the source signal is flexibly adjustable
Any geometry of boundaries, thin layering, fracturing, gradient media
Various source-receiver configurations

Price : $4,900

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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.

Overview
Specification
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Features	Version of Tesseral
Features	2D	Pro	Engineering
Depth model building
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
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
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	-	+	-

Overview
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