TOUGH Training Courses
The TOUGH Steering Committee is preparing a set of TOUGH Short Courses to be offered September 15-19, 2014. Below are the descriptions for the potential courses. Number, topics, and contents of the short courses will be determined based on demand and your interests, which can be indicated by completing the survey form and subscribing to the TOUGH Short Courses and Symposium E-mail List.
This course will provide an introduction to TOUGH2, a simulation program for non-isothermal, multiphase flow of multicomponent fluids. The focus will be on enabling users to prepare input data for setting up and solving flow problems. Some of the sample problems presented in the TOUGH2 user's guide will be used, emphasizing their role as prototypes and templates for creating new applications. The course will also include a survey of the physical processes modeled, and of the mathematical and numerical approaches used. Participants are invited to present a suitable modeling problem of their own, which will then be discussed during the last section of the short course.
RealGasH2O/RealGasBrine is a new EOS addition to the TOUGH+ family of code. It describes the non-isothermal two- (for pure water) and three-phase (for brine) flow of water and a real gas mixture in any type of gas reservoir, with a particular focus in ultra-tight (such as tight-sand and shale gas) systems. The gas mixture is treated as either a single-pseudo-component having a fixed composition, or as a multicomponent system composed of up to 9 individual real gases, including CO2. The salt in the case of brine can precipitate as solid halite under appropriate conditions, leading to reductions in porosity and permeability. In addition to the standard capabilities of all members of the TOUGH+ family of codes (fully-implicit, compositional simulators using both structured and unstructured grids), the capabilities of the code include: coupled flow and thermal effects in porous and/or fractured media, real gas behavior, inertial (Klinkenberg) effects, full micro-flow treatment, Darcy and non-Darcy flow through the matrix and fractures of fractured media, single- and multi-component gas sorption onto the grains of the porous media following several isotherm options, discrete and fracture representation, complex matrix-fracture relationships, and porosity-permeability dependence on pressure changes. The code involves correct description of gas dissolution into water/brine, and the most updated thermodynamics describing the behavior of gaseous components (including CO2) and water. The code allows the study of flow and transport of fluids and heat over a wide range of time frames and spatial scales not only in gas reservoirs, but also in problems of geologic storage of greenhouse gas mixtures, and of geothermal reservoirs with multi-component condensable (H2O and CH4) and non-condensable gas mixtures.
The training course will cover in detail the capabilities of the T+H model in the description of hydrate behavior in geologic systems. The focus of the course is gas production from natural gas hydrate accumulations, but sufficient information and examples will be discussed to address other aspects of hydrate studies (e.g., hydrate formation and dissociation in response to changing environmental conditions, laboratory studies involving hydrates at very low temperatures, etc.).
The introductory lectures will discuss the process of parameter estimation by automatic calibration of numerical models, specifically TOUGH2. Parameterization of the forward model, selection of calibration data and their incorporation into an objective function are essential issues, as they determine whether a well-posed inverse problem can be formulated. Multiple optimization algorithms suitable to minimize the objective function will be presented. The need and usefulness of performing formal sensitivity, residual, error, and uncertainty analyses will be emphasized.
In addition to the lectures, which provide the theoretical background, computer exercises using the iTOUGH2 simulation-optimization code will offer hands-on experience in solving practical inverse problems.
The combination of lectures and computer exercises will provide the attendees with solid knowledge in inverse modeling and initial experience in the use of iTOUGH2 for solving a variety of parameter estimation and optimization problems.
This course will provide an introduction to TOUGHREACT, a simulation program for non-isothermal, chemically reactive flow of multiphase fluids. The focus will be on enabling users to prepare input data for setting up and solving flow problems. Some of the sample problems presented in the TOUGHREACT user's guide will be used, emphasizing their role as prototypes and templates for creating new applications. The course will also include a survey of the physical and chemical processes modeled, and of the mathematical and numerical approaches used. Participants are welcome during any time of the course to bring up their own topics.
Recent Training Courses
- Short Course, September 2013, at Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.:
- TOUGH2 Short Course, September 9-11, 2013
- Short Courses, September 2012, at Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.:
- TOUGH2 Short Course, September 12-14, 2012
- TOUGH+Hydrate Short Course: September 12-14, 2012
- TOUGHREACT Short Course: September 20/21, 2012
- iTOUGH2 Short Course: September 20/21, 2012
- Short Courses, September 2011, at Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.:
- TOUGH2 Short Course: September 12-14, 2011
- iTOUGH2 Short Course: September 15/16, 2011
The following is a collection of training material used in various short courses.
- Introduction to Multiphase Flow, by Karsten Pruess (pdf)
- TOUGH2 Overview, by Karsten Pruess (pdf)
- TOUGH2 Sample Problems, by Karsten Pruess and Mike Kowalsky (pdf)
- TOUGH2 Tutorial, by Stefan Finsterle (pdf)
- EOS7R Tutorial, by Mike Kowalsky (pdf)
- T2VOC Tutorial, by Mike Kowalsky (pdf)
- TOUGHREACT Overview, by Tianfu Xu (pdf)
- TOUGHREACT Geochemistry, by Nic Spycher (pdf)
- TOUGHREACT Sample Problems, by Tianfu Xu and Nic Spycher (pdf)