Geophysical

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3DPSTM: 3-D Kirchhoff Prestack Time Migration 3DGeo's 3-D Kirchhoff prestack time migration (3DPSTM) package is based on a state-of-the-art implementation of the algorithm designed to achieve maximum efficiency on parallel-vector and cache-based supercomputers. The algorithm includes several choices of anti-aliasing and an amplitude equalization operator to preserve the amplitude information in the final image even when the spatial sampling of the input data is irregular. Through scaling of the input and output data 3DPSDM can be run on workstations as well as supercomputers, though the best efficiency is obtained on larger computing platforms. The 3DPSTM implementation handles both straight and curved rays.

Geophysical Aspects Kirchhoff migration is recognized as the most flexible method of imaging prestack 3-D seismic data. 3-D prestack migration of surface seismic data is the ultimate tool for imaging the Earth's subsurface in areas of complicated geological structure and velocity. Kirchhoff migration is particularly appropriate for 3-D prestack data, because of its flexibility in imaging irregularly sampled data and because of its relative computational efficiency.

 

http://www.pdgm.com/geodepth/products.aspx

 

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This robust implementation of the Kirchhoff Method provides excellent solutions for imaging complex faults, intrusives and overthrusts. The enhanced imaging and ability to produce preserved amplitude offset-dependent data for AVO plays a significant role in improving exploration success.

 

http://www.vector-seismic.com/software_products.php

 

 

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AspenTech HYSYS is a market-leading process modeling tool for conceptual design, optimization, business planning, asset management, and performance monitoring for oil & gas production, gas processing, petroleum refining, and air separation industries. AspenTech HYSYS is a core element of AspenTech’s aspenONE™ Process Engineering applications.

• AspenTech HYSYS Dynamics™ provides dynamic simulation capability fully integrated within Aspen HYSYS and is used for safety and controllability studies, pressure relief studies, and optimizing transition, startup and shutdown policies.
• AspenTech HYSYS Crude™ enables the simulation of crude oil assays and crude columns. It characterizes the hydrocarbon fluid by determining the hypothetical components that make up the oil and predicts their thermophysical and transport properties.
• AspenTech HYSYS Amines™ simulates and optimizes gas and liquid sweetening processes involving single or blended amines. An advanced thermodynamic Li-Mather electrolyte model achieves more reliable results than empirical models, especially for blended amines.
• AspenTech HYSYS Pipeline Hydraulics—OLGAS 2 -Phase incorporates industry-standard multiphase pipeline flow correlations within AspenTech HYSYS to calculate pressure gradients, liquid holdups, and flow regimes.
• AspenTech HYSYS Pipeline Hydraulics—PIPESYS enables the accurate modeling of single and multiphase flows to design, debottleneck, and optimize pipeline systems. It can account for pipeline elevation profiles, inline equipment, pipe composition and roughness, and fluid properties.
• AspenTech HYSYS Upstream™ provides the E&P industry standard methods and techniques for handling petroleum fluids and brings together the disciplines of petroleum and process engineering. Production field data can be input in an easy to use environment to create an asset-wide model from the reservoir to the back end of the facility.
• AspenTech HYSYS Petroleum Refining provides the refining industry with a multi-unit modeling tool with an AspenTech HYSYS look and feel. It enables users to integrate crude assay libraries, conversion reactor models, and links to LP planning tools for better crude selection, planning and scheduling of operations.

 

http://www.aspentech.com/core/aspen-hysys.cfm

 

 

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 The CIG Model Analyzer (Cigma) is a program designed to compare general numerical models. In particular, Cigma will calculate the L2-norm of the difference between finite element models, resulting in approximate global and local error metrics that may be used for both code verification and benchmarking purposes. CIG developed Cigma in response to demand from the short-term tectonics community for an automated tool that can perform rigorous error analysis on their finite element codes

 

http://www.geodynamics.org/cig/software/packages/cs/cigma/

 

 

 

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CitcomS is a finite element code designed to solve thermal convection problems relevant to earth’s mantle released under the GNU General Public License. Written in C, the code runs on a variety of parallel processing computers, including shared and distributed memory platforms. In an effort to increase the functionality of CitcomS to include greater control during simulations on large parallel systems, the software has been reengineered from previous versions of CitcomS to work with a Python-based modeling framework called Pyre. With Pyre, CitcomS can be dynamically coupled with other CitcomS simulations or with other codes such as SNAC, which solves crustal and lithospheric problems.

 

http://www.geodynamics.org/cig/software/packages/cs/cigma/

 

 

 

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ECLIPSE reservoir simulators have been the benchmark for commercial reservoir simulation for over 25 years because of their breadth of capabilities, parallel scalability, utility computing, and unmatched platform coverage.
The difficulty in preparing input into and analyzing the results from reservoir simulation has historically been a lack of integration between the pre- and postprocessing tools and the need for many manual time-consuming data transfers and data-formatting steps. As a result, reservoir simulation has not been utilized in many business decisions where it would have added tremendous value. The answer is ECLIPSE + Petrel.

 

http://www.halliburton.com/ps/default.aspx?pageid=862&navid=221&prodid=MSE::1055450737429153

 

 

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GeoDepth is a fully integrated system for 2D/3D velocity model building and seismic imaging. It enables the construction of a variety of 3D velocity/depth model types, from preprocessed, prestack marine/land seismic data.

Running on the Epos™3 data management and interoperability integration framework, GeoDepth integrates interpretation, visualization, velocity analysis, model building, mapping, time-to-depth conversion, depth imaging, ray trace modeling and tomography inversion, in a 3D isotropic and anisotropic environment.
GeoDepth is run through the Velocity Navigator, an intuitive, Wizard-driven user interface that promotes a short learning curve. The Velocity Navigator combines horizon- and vertical-based velocity analysis workflows, in both interactive and automatic modes. This facilitates a highly productive model-building process, and helps users create more plausible geological models.

GeoDepth is supported by a rich suite of Earth Domain Imaging migrations, including all types of time/depth, ray-based Kirchhoff/wave equation, post-stack/pre-stack migrations.

GeoDepth supports both shared memory and distributed cluster (Linux) systems.

 

http://www.pdgm.com/geodepth/products.aspx

 

  

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Dynamo codes represent a powerful new tool for the quantitative study of a broad range of geophysical processes, ranging from short time-scale phenomena such as magnetic variations, rotational variations, and flow in the core, to long-term phenomena such as magnetic excursions, reversals, superchrons, and the evolution of the core and its thermal and chemical interaction with the mantle. The primary objective of CIG in this area is to provide the Earth Science community with robust, reliable, efficient, flexible, stateof- the-art numerical codes for modeling dynamo processes in the Earth’s core and in the interiors of other planets. Another CIG objective is to support graphical- and user-interfaces for these codes that allow Earth scientists to analyze, display, and interpret dynamo code results, and to compare results from the various codes that we support, as well as with geomagnetic, space magnetic, and paleomagnetic data. 

http://geodynamics.org/cig/software/packages/geodyn/mag/

 

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Simulation of the marine environment has become an important tool across a wide range of human activities, with applications in coastal engineering, offshore industries, fisheries management, marine pollution monitoring, weather forecasting and climate research to name but a few. Sustainable management of the ecological resources of coastal environments demands an ability to understand and predict the behavior of the marine ecosystem. Thus, it is highly desirable to extend the capabilities of existing hydrodynamic models to include chemical, bio-geo-chemical and biological processes within the marine ecosystem.

The Proudman Oceanographic Laboratory Coastal Ocean Modeling System (POLCOMS) has been developed to tackle multi-disciplinary studies in coastal/shelf environments. The central core is a sophisticated 3-dimensional hydrodynamic model that provides realistic physical forcing to interact with, and transport, environmental parameters. Integrating from ocean to coast, or vice versa, biological production and the fate of contaminants can be determined. Figure 1 shows the concept of the coupled model

 

http://www.pol.ac.uk/home/research/polcoms/

 

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ProMAX® is an interactive seismic data processing package that combines ease of use, effective analysis tools and flexibility with excellent algorithms, infrastructure and productivity tools. With ProMAX software, you can realize greater value from your investment in seismic data, increase productivity, reduce project cycle times and lower risk

 

http://www.halliburton.com/ps/default.aspx?pageid=862&navid=221&prodid=MSE::1055450737429153

 

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PyLith is a multi-scale simulation software package for earthquake physics. It is portable, scalable software for simulation of crustal deformation across spatial scales ranging from meters to hundreds of kilometers and temporal scales ranging from milliseconds to thousands of years.

 

http://www.halliburton.com/ps/default.aspx?pageid=862&navid=221&prodid=MSE::1055450737429153

 

 

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SNAC (StGermaiN Analysis of Continua) is an updated Lagrangian explicit nite dierence code for modeling a nitely deforming elasto-visco-plastic solid in 3D, released under the GNU General Public License. In this code, nodal velocities satisfying a weak-form of the momentum balance are obtained as the nodal solution. SNAC shares a mathematical foundation, and thus major advantages, with a standard finite element method (FEM). However, it departs from the FEM by not making explicit use of shape functions. A Cartesian mesh consisting of 4-node linear or constant-strain tetrahedral elements is used to represent a discretized domain, although a spherical domain can also be used. On top of the tetrahedral discretization, a coarser discretization is constructed by zones, which are defined by eight nodes like a hexhedral element in the standard FEM and subdivided into two layouts of five tetrahedral elements for symmetric response. To avoid the over-stiff response of tetrahedrons in the incompressible limit, mixed discretization is applied. The mixed discretization relieves over-stiness by replacing the first invariant of tetrahedral strain-rate tensor with the one averaged over a zone.

 

http://geodynamics.org/cig/software/packages/long/snac/

 

  

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The software package SPECFEM3D simulates southern California seismic wave propagation based upon the spectralelement method (SEM). Effects due to lateral variations in compressional-wave speed, shear-wave speed, density, a 3D crustal model, topography and bathymetry are included.

 

The package can accommodate full 21-parameter anisotropy as well as lateral variations in attenuation. Adjoint capabilities and finite-frequency kernel simulations are included.

All SPECFEM3D software is written in Fortran90, and conforms strictly to the Fortran95 standard. It uses no obsolete

or obsolescent features of Fortran77. The package uses parallel programming based upon the Message Passing

Interface (MPI).

 

http://www.geodynamics.org/cig/software/packages/seismo/specfem3d/

 

  

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Underworld is a 3D-parallel geodynamic modelling framework capable of deriving viscous / viscoplastic thermal, chemical and thermochemical models consistent with tectonic processes, such as mantle convection and lithospheric deformation over long time scales.

 

Underworld utilises a Lagrangian particle-in-cell finite element scheme (the prototype of which is the Ellipsis code), and is visualised using gLucifer.

 

The Underworld source code is written in C in an Object Oriented style, following the methodology of design for change applied to computational codes implemented in StGermain. It uses PETSc (optimised numerical solvers) and MPI (parallelism) libraries. The Underworld to StGermain software stack is released under a mixture of BSD and LGPL licenses.

 

The Underworld Modelling Capabilities details the core set of phenonema modelled and distributed with Underworld, including lithospheric deformation, slab subduction and mantle convection. Underworld can be obtained from Underworld Downloads, and user and developer documentation from Underworld Documentation.

 

A prevalent example of the application of the Underworld platform is the CIG GALE code, which solves problems related to orogenesis, rifting, and subduction with coupling to surface erosion models.

 

Underworld is under collaborative development by Monash University and VPAC, as part of the Victorian node of the NCRIS AuScope 'Simulation, Analysis, Modelling' capability.

 

http://www.underworldproject.org

 

  

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