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Modeling Design And Life Performance Prediction For Energy Production From Geothermal Reservoirs Quarterly Report January March 1998
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Book Synopsis Modeling, Design, and Life Performance Prediction for Energy Production from Geothermal Reservoirs. Quarterly Report, January--March 1998 by :
Download or read book Modeling, Design, and Life Performance Prediction for Energy Production from Geothermal Reservoirs. Quarterly Report, January--March 1998 written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project is to maintain and transfer existing Hot Dry Rock two-dimensional fractured reservoir analysis capability to the geothermal industry and to extend the analysis concepts to three dimensions. The project start date was May 22, 1997 and it runs through May 21, 1998. This is the quarterly progress report for January through March of 1998. In this quarter, the primary focus has been on development of the Geocrack3D model, presenting initial results to the industry, and maintenance of Geocrack2D. It is important to emphasize that the modeling is complementary to current industry modeling, in that they focus on the user interface, flow in fractured rock, and the coupled effect of thermal cooling changing fracture aperture.
Book Synopsis Action of Anthocyanin and Related Compounds on Bacterial Cells by : John Joseph Powers
Download or read book Action of Anthocyanin and Related Compounds on Bacterial Cells written by John Joseph Powers and published by . This book was released on 1964 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling, Design, and Life Performance Prediction for Energy Production from Geothermal Reservoirs. Final Report by :
Download or read book Modeling, Design, and Life Performance Prediction for Energy Production from Geothermal Reservoirs. Final Report written by and published by . This book was released on 1998 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: System modeling supports the design and long-term, commercially successful operation of geothermal reservoirs. Modeling guides in the placement of the injection and production wells, in the stimulation of the reservoir, and in the operational strategies used to ensure continuing production. Without an understanding of the reservoir, it is possible to harm the reservoir by inappropriate operation (especially break-through of cold injection fluid) and the desired profitable lifetimes will not be reached. In this project the authors have continued to develop models for predicting the life of geothermal reservoirs. One of the goals has been to maintain and transfer existing Hot Dry Rock two-dimensional fractured reservoir analysis capability to the geothermal industry and to begin the extension of the analysis concepts to three dimensions. Primary focus has been on interaction with industry, maintenance of Geocrack2D, and development of the Geocrack3D model. It is important to emphasize that the modeling is complementary to current industry modeling, in that they focus on flow in fractured rock and on the coupled effect of thermal cooling. In the following sections the authors document activities as part of this research project: industry interaction; national and international collaboration; and model development.
Book Synopsis Modeling, Design, and Life Performance Prediction for Energy Production from Geothermal Reservoirs. First Quarter Progress Report by :
Download or read book Modeling, Design, and Life Performance Prediction for Energy Production from Geothermal Reservoirs. First Quarter Progress Report written by and published by . This book was released on 1997 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project is to both transfer existing Hot Dry Rock two-dimensional fractured reservoir analysis capability to the geothermal industry and to extend the analysis concepts to three dimensions. In this quarter, the primary focus has been on interaction with industry, development of the Geocrack3D model, and maintenance of Geocrack2D. It is important to emphasize that the modeling is complementary to current industry modeling, in that they focus on flow in fractured rock and on the coupled effect of thermal cooling, while a primary focus of current modeling technology is multi-phase flow.
Download or read book Соль жизни written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synerjy written by and published by . This book was released on 1996 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Hydraulic Modeling of Discretely Fractured Geothermal Reservoirs by : Don Bruce Fox
Download or read book Thermal Hydraulic Modeling of Discretely Fractured Geothermal Reservoirs written by Don Bruce Fox and published by . This book was released on 2016 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhanced/Engineered Geothermal Systems (EGS) have the potential to provide a significant amount of base load electricity and heat and to displace fossil fuel consumption globally. To determine the potential for the expansion of direct use geothermal energy, a detailed analysis of U.S. energy consumption was performed to estimate the amount of primary energy consumed as a function of its utilization temperature from 0 to 260? C. The analysis revealed that about 34 EJ annually, more than 30% of the U.S. annual energy demand is used for direct thermal use applications in the temperature range of 0 to 260? C. Both analytical and numerical models of discretely fractured reservoirs were developed to probe the thermal hydraulic behavior of model EGS reservoirs and quantify factors controlling performance. An analytical model for discrete, fixed aperture, rectangular fractures with specified uniform flow was used to illustrate the renew ability of EGS reservoirs with a ratio of production to renewal times of about 0.2 to 0.33. Fracture structure and connectivity were also shown to affect reservoir performance in modeling studies. In general, fracture connectivity is more important than aperture variations within the fractures. Flow channeling in fractures with spatially varying aperture fields were simulated using a developed numerical model. An ensemble of fracture realizations were used to illustrate how the magnitude of aperture variations lead to flow structures that often inhibit rather than enhance subsurface heat exchange. Finally, both conservative and reactive tracers were used to determine the spatially varying thermal field during heat extraction in a discrete fracture with variable aperture. Reduced order modeling of the fracture was used to create a tractable framework for inferring reservoir structure. Tracers revealed the capability to predict a reservoir's production temperature versus time, with reactive tracers providing better results. However, difficulties in accurately predicting the aperture field led to a non-unique outcome where more than one reservoir realization matched both the tracer curve and production temperature.
Download or read book The Greenhouse Gas Protocol written by and published by World Business Pub.. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The GHG Protocol Corporate Accounting and Reporting Standard helps companies and other organizations to identify, calculate, and report GHG emissions. It is designed to set the standard for accurate, complete, consistent, relevant and transparent accounting and reporting of GHG emissions.
Book Synopsis A Semi-analytical Model to Calculate Energy Production in Single Fracture Geothermal Reservoirs by : G. M. Shook
Download or read book A Semi-analytical Model to Calculate Energy Production in Single Fracture Geothermal Reservoirs written by G. M. Shook and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate goal of geothermal reservoir management is to mine as much energy as possible from the reservoir. Since most of geothermal reservoirs are fractured, the development of improved techniques for monitoring, prediction and control of two-phase mass and energy transport in the fractures are needed. Tracer testing is a powerful tool for characterizing fractures properties such as swept pore volume. By incorporating the pore volume of the fracture estimated from tracer data with a semi-anaytical model of mass and energy transport in the fracture and matrix, the energy production rate can be calculated. Previous models to predict energey production assumed single-phase flow and semi-infinite matrix blocks and thus overestimate the energy that can be usufully produced from the reservoir. In this paper, a semi-analytical solution to the mass and energy balance equations is derived for two-phase flow in a fracture with heat conduction from a finite matrix. Calculations using the semi-analytical model are shown to be in good agreement with numerical simulations using the TETRAD simulator.
Book Synopsis A Physical Model of a Geothermal System by : Stanford Geothermal Program
Download or read book A Physical Model of a Geothermal System written by Stanford Geothermal Program and published by . This book was released on 1975 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of Geothermal Reservoirs by :
Download or read book Modeling of Geothermal Reservoirs written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This article attempts to critically evaluate the present state of the art of geothermal reservoir simulation. Methodological aspects of geothermal reservoir modeling are briefly reviewed, with special emphasis on flow in fractured media. Then we examine applications of numerical simulation to studies of reservoir dynamics, well test design and analysis, and modeling of specific fields. Tangible impacts of reservoir simulation technology on geothermal energy development are pointed out. We conclude with considerations on possible future developments in the mathematical modeling of geothermal fields. 45 refs., 4 figs., 2 tabs.
Book Synopsis Eigendtlicher Bericht, wie die Kgl. Majestättin in Schweden die Krone abgeleget ... by :
Download or read book Eigendtlicher Bericht, wie die Kgl. Majestättin in Schweden die Krone abgeleget ... written by and published by . This book was released on 1654 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Research Council (U.S.). Committee on Nuclear and Alternative Energy Systems. Synthesis Panel. Modeling Resource Group Publisher : ISBN 13 : Total Pages :258 pages Book Rating :4.1/5 (148 download)
Book Synopsis Energy Modeling for an Uncertain Future by : National Research Council (U.S.). Committee on Nuclear and Alternative Energy Systems. Synthesis Panel. Modeling Resource Group
Download or read book Energy Modeling for an Uncertain Future written by National Research Council (U.S.). Committee on Nuclear and Alternative Energy Systems. Synthesis Panel. Modeling Resource Group and published by . This book was released on 1978 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1979 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Application of Inverse Modeling to Geothermal Reservoir Simulation by :
Download or read book Application of Inverse Modeling to Geothermal Reservoir Simulation written by and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have developed inverse modeling capabilities for the non-isothermal, multiphase, multicomponent numerical simulator TOUGH2 to facilitate automatic history matching and parameter estimation based on data obtained during testing and exploitation of geothermal fields. The ITOUGH2 code allows one to estimate TOUGH2 input parameters based on any type of observation for which a corresponding simulation output can be calculated. Furthermore, a detailed residual and error analysis is performed, and the uncertainty of model predictions can be evaluated. Automatic history matching using ITOUGH2 is robust and efficient so that model parameters affecting geothermal field performance can reliably be estimated based on a variety of field measurements such as pressures, temperatures, flow rates, and enthalpies. The paper describes the methodology of inverse modeling and provides a detailed discussion of sample problems to demonstrate the application of the method to data from geothermal reservoirs.
Book Synopsis Life Cycle Analysis Data and Results for Geothermal and Other Electricity Generation Technologies by :
Download or read book Life Cycle Analysis Data and Results for Geothermal and Other Electricity Generation Technologies written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Life cycle analysis (LCA) is an environmental assessment method that quantifies the environmental performance of a product system over its entire lifetime, from cradle to grave. Based on a set of relevant metrics, the method is aptly suited for comparing the environmental performance of competing products systems. This file contains LCA data and results for electric power production including geothermal power. The LCA for electric power has been broken down into two life cycle stages, namely plant and fuel cycles. Relevant metrics include the energy ratio and greenhouse gas (GHG) ratios, where the former is the ratio of system input energy to total lifetime electrical energy out and the latter is the ratio of the sum of all incurred greenhouse gases (in CO2 equivalents) divided by the same energy output. Specific information included herein are material to power (MPR) ratios for a range of power technologies for conventional thermoelectric, renewables (including three geothermal power technologies), and coproduced natural gas/geothermal power. For the geothermal power scenarios, the MPRs include the casing, cement, diesel, and water requirements for drilling wells and topside piping. Also included herein are energy and GHG ratios for plant and fuel cycle stages for the range of considered electricity generating technologies. Some of this information are MPR data extracted directly from the literature or from models (eg. ICARUS - a subset of ASPEN models) and others (energy and GHG ratios) are results calculated using GREET models and MPR data. MPR data for wells included herein were based on the Argonne well materials model and GETEM well count results.
Book Synopsis Renewable Energy Sources and Climate Change Mitigation by : Ottmar Edenhofer
Download or read book Renewable Energy Sources and Climate Change Mitigation written by Ottmar Edenhofer and published by Cambridge University Press. This book was released on 2011-11-21 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Intergovernmental Panel on Climate Change Special Report (IPCC-SRREN) assesses the potential role of renewable energy in the mitigation of climate change. It covers the six most important renewable energy sources - bioenergy, solar, geothermal, hydropower, ocean and wind energy - as well as their integration into present and future energy systems. It considers the environmental and social consequences associated with the deployment of these technologies, and presents strategies to overcome technical as well as non-technical obstacles to their application and diffusion. SRREN brings a broad spectrum of technology-specific experts together with scientists studying energy systems as a whole. Prepared following strict IPCC procedures, it presents an impartial assessment of the current state of knowledge: it is policy relevant but not policy prescriptive. SRREN is an invaluable assessment of the potential role of renewable energy for the mitigation of climate change for policymakers, the private sector, and academic researchers.
