Download or read book Permeability Distribution Estimation Based on Semi Analytical Reservoir Simulator written by Shuai Chen and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimation of rock permeability distribution can be realized by automatic history matching production data. The process of automatic history matching involves the minimization of an objective function which usually includes the sum of data mismatch part as well as the sum of prior model mismatch part. For our semi-analytical simulator, the choice of optimization algorithms to minimize the objective function becomes of vital importance. For our simulator, we considered both gradient based methods and non-gradient based methods. Gradient based algorithms have the big advantage of much faster convergence rate over non-gradient based algorithms. It is illustrated in this study that application of gradient based methods is not practical for this simulator. Among the non-gradient based methods, we choose particle swarm optimization. For this algorithm, reservoir simulator can be treated as a black box. It is easy to implement and be transferred to another simulator within just a few hours. However, for gradient based algorithms, a set of completely different gradient equations are required, whereas greatest advantage of particle swarm optimization is its fast convergence rate at the beginning stage. Three examples are presented to show application of particle swarm optimization in automatic history matching based on synthetic production data. The first example simulates a high permeability channel existing in a relatively lower permeability formation. The second example simulates a formation with gradual changing permeability distribution. The third example represents a formation with sweet spot. The permeability of central part is higher compared to neighbouring area. Estimated permeability distributions have shown that the general permeability trends of these three examples can be caught. At the same time, predictions using estimated permeability field have a very good match with synthetic production history. As such, particle swarm optimization has been introduced and successfully applied to do automatic history matching in our semi-analytical simulator. Uncertainties associated with permeability distribution estimations are reduced significantly.
Download or read book Semi analytical Estimates of Permeability Obtained from Capillary Pressure written by Caroline Cécile Huet and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to develop and test a new concept for predicting permeability from routine rock properties. First, we develop a model predicting permeability as a function of capillary pressure. Our model, which is based on the work by Purcell, Burdine and Wyllie and Gardner models, is given by: (Equation 1 - See PDF) Combining the previous equation and the Brooks and Corey model for capillary pressure, we obtain: (Equation 2 - See PDF). The correlation given by this equation could yield permeability from capillary pressure (and vice-versa). This model also has potential extensions to relative permeability (i.e., the Brooks and Corey relative permeability functions) - which should make correlations based on porosity, permeability, and irreducible saturation general tools for reservoir engineering problems where relative permeability data are not available. Our study is validated with a large range/variety of core samples in order to provide a representative data sample over several orders of magnitude in permeability. Rock permeabilities in our data set range from 0.04 to 8700 md, while porosities range from 0.3 to 34 percent. Our correlation appears to be valid for both sandstone and carbonate lithologies.
Download or read book An Introduction to Reservoir Simulation Using MATLAB GNU Octave written by Knut-Andreas Lie and published by Cambridge University Press. This book was released on 2019-08-08 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents numerical methods for reservoir simulation, with efficient implementation and examples using widely-used online open-source code, for researchers, professionals and advanced students. This title is also available as Open Access on Cambridge Core.
Download or read book Reservoir Simulation written by Calvin C. Mattax and published by Society of Petroleum Engineers. This book was released on 1990 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir Simulation, written by experienced simulation users, was designed to help demystify the what's and whys of designing, editing, and analyzing reservoir simulations.
Download or read book Well Testing in Heterogeneous Formations written by Tatiana D. Streltsova and published by . This book was released on 1988 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph emphasizes modifications in flow behavior that are caused by formation heterogeneity, making the exposition useful to both the novice looking for a general understanding and the experienced analyst looking to improve, or find alternatives to, existing methodology. Organizes a diverse body of information that is scattered throughout the international petroleum and groundwater literature. Illustrates the limitation of most current interpretational procedures, which are based upon theories developed for homogeneous rock, rather than formations, and presents the basic mathematical theories that have been advanced to describe pressure behavior in heterogeneous rock. Covers a wide variety of heterogeneities, including: lateral permeability variation, vertical stratification, and natural fractures. Also discusses sealing faults, interbedded shales, sand pinch-outs, and finite drainage areas. The influence of gas-oil and water-oil contacts within well drainage areas on the pressure performance. Actual text data are used to illustrate theoretical developments.
Download or read book Estimation of Reservoir Permeability Using Gravity Change Measurements written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploitation of a liquid-dominated geothermal system generally results in a transfer of mass that causes measurable changes in gravity. When the rate of mass transfer is controlled by the permeability of the reservoir rocks then analysis of measured gravity changes, using numerical reservoir simulation models, can yield values for reservoir properties. One such case is during the early stages of exploitation, during the formation and expansion of a 2-phase zone. Calculations using MULKOM models show that for Wairakei field the gravity changes associated with permeabilities of 50 and 100 md would be clearly distinguishable (> 50 microgal) in less than 2 years. A measured gravity change of -415 microgal between 1950 and 1961 suggests a permeability of 100 md for rocks in the upper part of the 2-phase zone. This value is consistent with those obtained from well tests.
Download or read book Reservoir Characterization Procedures for Numerical Simulation written by Helge Hove Haldorsen and published by . This book was released on 1983 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Statistical Study of Reservoir Permeability Distributions written by Jerry Lee Jensen and published by . This book was released on 1987 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1977 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SPE Reservoir Engineering written by and published by . This book was released on 1993 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1977 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Verification of a Semi analytical Reservoir Simulator Using a Finite Difference Reservoir Simulator written by Hans Gerhardt Dube and published by . This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SPE Formation Evaluation written by and published by . This book was released on 1997 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimation of Relative Permeability and Capillary Pressure for Hydrocarbon Reservoirs Using Ensemble Based History Matching Techniques written by Yin Zhang and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CO2 Injection in the Network of Carbonate Fractures written by J. Carlos de Dios and published by Springer Nature. This book was released on 2020-12-17 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents guidelines for the design, operation and monitoring of CO2 injection in fractured carbonates, with low permeability in the rock matrix, for geological storage in permanent trapping. CO2 migration is dominated by fractures in formations where the hydrodynamic and geochemical effects induced by the injection play a key role influencing the reservoir behavior. CO2 injection in these rocks shows specific characteristics that are different to injection in porous media, as the results from several research studies worldwide reveal. All aspects of a project of this type are discussed in this text, from the drilling to the injection, as well as support works like well logging, laboratory and field tests, modeling, and risk assessment. Examples are provided, lesson learned is detailed, and conclusions are drawn. This work is derived from the experience of international research teams and particularly from that gained during the design, construction and operation of Hontomín Technology Development Plant. Hontomín research pilot is currently the only active onshore injection site in the European Union, operated by Fundación Ciudad de la Energía-CIUDEN F.S.P. and recognized by the European Parliament as a key test facility. The authors provide guidelines and tools to enable readers to find solutions to their problems. The book covers activities relevant to a wide range of practitioners involved in reservoir exploration, modeling, site operation and monitoring. Fluid injection in fractured media shows specific features that are different than injection in porous media, influencing the reservoir behavior and defining conditions for safe and efficient operation. Therefore, this book is also useful to professionals working on oil & gas, hydrogeology and geothermal projects, and in general for those whose work is related to activities using fluid injection in the ground.
Download or read book The Practice of Reservoir Engineering written by L.P. Dake and published by Elsevier. This book was released on 2013-10-22 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Practice of Reservoir Engineering has been written for those in the oil industry requiring a working knowledge of how the complex subject of hydrocarbon reservoir engineering can be applied in the field in a practical manner. The book is a simple statement of how to do the job and is particularly suitable for reservoir/production engineers and is illustrated with 27 examples and exercises based mainly on actual field developments. It will also be useful for those associated with the subject of hydrocarbon recovery. Geoscientists, petrophysicists and those involved in the management of oil and gas fields will also find it particularly relevant.The new http://www.elsevier.nl/locate/isbn/0444506705 Practice of Reservoir Engineering Revised Edition will be available soon.
Download or read book Data Analytics in Reservoir Engineering written by Sathish Sankaran and published by . This book was released on 2020-10-29 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Analytics in Reservoir Engineering describes the relevance of data analytics for the oil and gas industry, with particular emphasis on reservoir engineering.
