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Simple Mechanistic Modeling Of Recovery From Unconventional Oil Reservoirs
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Book Synopsis Simple Mechanistic Modeling of Recovery from Unconventional Oil Reservoirs by : Babafemi Anthony Ogunyomi
Download or read book Simple Mechanistic Modeling of Recovery from Unconventional Oil Reservoirs written by Babafemi Anthony Ogunyomi and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decline curve analysis is the most widely used method of performance forecasting in the petroleum industry. However, when these techniques are applied to production data from unconventional reservoirs they yield model parameters that result in infinite (nonphysical) values of reserves. Because these methods were empirically derived the model parameters are not functions of reservoir/well properties. Therefore detailed numerical flow simulation is usually required to obtain accurate rate and expected ultimate recovery (EUR) forecast. But this approach is time consuming and the inputs in to the simulator are highly uncertain. This renders it impractical for use in integrated asset models or field development optimization studies. The main objective of this study is to develop new and "simple" models to mitigate some of these limitations. To achieve this object field production data from an unconventional oil reservoir was carefully analyzed to identify flow regimes and understand the overall decline behavior. Using the result from this analysis we use design of experiment (DoE), numerical reservoir simulation and multivariate regression analysis to develop a workflow to correlate empirical model parameters and reservoir/well properties. Another result from this analysis showed that there are at least two time scales in the production data (existing empirical and analytical model do not account for this fact). Double porosity models that account for the multiple time scales only have complete solutions in Laplace space and this make them difficult to use in optimization studies. A new approximate analytical solution to the double porosity model was developed and validated with synthetic data. It was shown that the model parameters are functions of reservoir/well properties. In addition, a new analytical model was developed based on the parallel flow conceptual model. A new method is also presented to predict the performance of fractured wells with complex fracture geometries that combines a fundamental solution to the diffusivity equation and line/surface/volume integral to develop solutions for complex fracture geometries. We also present new early and late time solutions to the double porosity model that provide explicit functions for skin and well/fracture storage, which can be used to improve the characterization of fractured horizontal wells from early-time production data
Book Synopsis Mechanistic and Probabilistic Rate-time Analysis of Unconventional Reservoirs by : Leopoldo Matías Ruiz Maraggi
Download or read book Mechanistic and Probabilistic Rate-time Analysis of Unconventional Reservoirs written by Leopoldo Matías Ruiz Maraggi and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rate-time analysis is a widely used technique to forecast production in oil and gas production. The geological complexity of shale formations and their ultra-low permeability creates significant uncertainty on the behavior of these wells and their production forecast. This work is divided into two parts. The first, develops simple physics-based models to further understand the underlaying mechanisms of unconventional production. The second, introduces a probability approach that attempts to address the uncertainty in the production forecasts. The first part of this work presents mechanistic modeling of unconventional resources to estimate the ultimate recovery (EUR), drainage volumes and recovery factors of wells. Using dimensional analysis, we cast the dimensionless groups of the one-dimensional compressible and slightly compressible single-phase and single porosity diffusivity equation (constant well pressure case). The solutions present the driving force for oil and gas production (drainage mechanism) and its parameters as two desired physical quantities: stimulated volume and characteristic time. Furthermore, we show that this equation is general for the three-dimensional case when there are no-flow boundaries in the other directions. Using this approach, we introduce a rigorous solution for two-phase flow of the slightly compressible diffusivity equation. Moreover, we propose an approximate solution of the single-phase and double-porosity cases of the slightly compressible diffusivity equation. In addition, we develop a modification of the Unconventional CRM equation reducing its parameters to the ones present in the solution of the diffusivity equation. Finally, we present application examples of the discussed models to wells from the Bakken/Three Forks, Wolfcamp/Spraberry and Haynesville Formations. The second part of this thesis displays the application of a probability approach to forecast the production of unconventional wells. The procedure involves sampling the production data, then matching these realizations with different rate-time relations to get EUR distributions for each model. Finally, the method assesses the performance of each rate-time relation with a probability to output a weighted EUR distribution for a given well. A weighted EUR distribution comes closer to acknowledging the uncertainty present in the production forecast. Finally, the procedure is applied to forecast production of wells of the Bakken, Wolfcamp and Haynesville Formations.
Book Synopsis Production Analysis and Forecasting of Shale Reservoirs Using Simple Mechanistic and Statistical Modeling by : Leopoldo Matias Ruiz Maraggi
Download or read book Production Analysis and Forecasting of Shale Reservoirs Using Simple Mechanistic and Statistical Modeling written by Leopoldo Matias Ruiz Maraggi and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate production analysis and forecasting of well’s performance is essential to estimate reserves and to develop strategies to optimize hydrocarbon recovery. In the case of shale resources, this task is particularly challenging for the following reasons. First, these reservoirs show long periods of transient linear flow in which the reservoir volume grows continuously over time acting without bounds. Second, variable operating conditions cause scatter and abrupt production changes. Finally, the presence of competing flow mechanisms, heterogeneities, and multi-phase flow effects make the production analysis more complex. Detailed numerical flow models can address the complexities present in unconventional reservoirs. However, these models suffer from the following limitations: (a) the uncertainty of many input parameters, (b) susceptibility to overfit the data, (c) lack of interpretability of their results, and (d) high computational expense. This dissertation provides new and simple mechanistic and statistical modeling tools suitable to improve the production analysis and forecasts of shale reservoirs. This work presents solutions to the following research problems. This study develops and applies a new two-phase (oil and gas) flow suitable to history-match and forecast production of tight-oil and gas-condensate reservoirs producing below bubble- and dew-point conditions, respectively. It solves flow equations in dimensionless form and uses only two scaling parameters (hydrocarbon in-place and characteristic time) to history-match production. For this reason, the model requires minimal time to run making it ideal for decline curve analysis on large numbers of wells. This research illustrates the development and application of a Bayesian framework that generates probabilistic production history matches and forecasts to address the uncertainty of model’s estimates. This work uses an adaptative Metropolis-Hastings Markov chain Monte Carlo (MCMC) algorithm to guarantee a fast convergence of the Markov chains by accounting for the correlation among model’s parameters. In addition, this study calibrates the model’s probabilistic estimates using hindcasting and evaluates the inferences robustness using posterior predictive checks. This dissertation examines the problem of evaluation, ranking and selection, and averaging of models for improved probabilistic production history-matching and forecasting. We illustrate the assessment of the predictive accuracy of four rate-time models using the expected log predictive density (elpd) accuracy metric along with cross-validation techniques (leave-one-out and leave-future-out). The elpd metric provides a measure of out-of-sample predictive accuracy of a model’s posterior distribution. The application of Pareto smoothed importance sampling (PSIS) allows to use cross-validation techniques without the need of refitting Bayesian models. Using the Bayesian Bootstrap, this work generates a model ensemble that weighs each individual model based on the accuracy of its predictions. Finally, this research applies a novel deconvolution technique to incorporate changing operating conditions into rate-time analysis of tight-oil and shale gas reservoirs. Furthermore, this work quantifies the errors and discusses the limitations of the standard rate-transient analysis technique used in production analysis of unconventional reservoirs: rate normalization and material balance time
Book Synopsis Advances in Enhancing Unconventional Oil/Gas Recovery by : Tao Zhang
Download or read book Advances in Enhancing Unconventional Oil/Gas Recovery written by Tao Zhang and published by . This book was released on 2024-07-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reprint aims to immerse readers in the latest advances in enhancing unconventional oil and gas recovery, focusing on reservoirs such as tight gas/oil, shale gas/oil, and coalbed methane. The contributions include new laboratory measurements, simulation studies, mathematical modeling, and field case studies, spanning topics such as reservoir characterization, fluids in porous media, productivity evaluation, enhanced oil recovery (EOR)/enhanced gas recovery (EGR), and machine learning and data science. The studies presented here provide new insights into the complex dynamics of unconventional reservoirs and propose innovative solutions to the challenges they present. Together, we embark on a journey to unlock the full potential of unconventional reservoirs, seeking solutions that balance our growing energy needs with the responsibility to achieve carbon neutrality goals. This reprint serves as a testament to the remarkable progress in the field, paving the way for a greener, more sustainable future where energy resources are utilized efficiently and responsibly.
Book Synopsis Low-Energy Processes for Unconventional Oil Recovery by : Mohammad Reza Fassihi
Download or read book Low-Energy Processes for Unconventional Oil Recovery written by Mohammad Reza Fassihi and published by . This book was released on 2017 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Multi-physics Model for Enhanced Oil Recovery in Liquid-rich Unconventional Reservoirs by : Bình Thanh Bùi
Download or read book A Multi-physics Model for Enhanced Oil Recovery in Liquid-rich Unconventional Reservoirs written by Bình Thanh Bùi and published by . This book was released on 2016 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow and Transport Properties of Unconventional Reservoirs 2018 by : Jianchao Cai
Download or read book Flow and Transport Properties of Unconventional Reservoirs 2018 written by Jianchao Cai and published by MDPI. This book was released on 2019-07-23 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconventional reservoirs are usually complex and highly heterogeneous, such as shale, coal, and tight sandstone reservoirs. The strong physical and chemical interactions between fluids and pore surfaces lead to the inapplicability of conventional approaches for characterizing fluid flow in these low-porosity and ultralow-permeability reservoir systems. Therefore, new theories and techniques are urgently needed to characterize petrophysical properties, fluid transport, and their relationships at multiple scales for improving production efficiency from unconventional reservoirs. This book presents fundamental innovations gathered from 21 recent works on novel applications of new techniques and theories in unconventional reservoirs, covering the fields of petrophysical characterization, hydraulic fracturing, fluid transport physics, enhanced oil recovery, and geothermal energy. Clearly, the research covered in this book is helpful to understand and master the latest techniques and theories for unconventional reservoirs, which have important practical significance for the economic and effective development of unconventional oil and gas resources.
Book Synopsis Compositional Modeling of Multiphase Flow and Enhanced Oil Recovery Prospects in Liquid-rich Unconventional Reservoirs by : Najeeb S. Alharthy
Download or read book Compositional Modeling of Multiphase Flow and Enhanced Oil Recovery Prospects in Liquid-rich Unconventional Reservoirs written by Najeeb S. Alharthy and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unconventional Reservoir Geomechanics by : Mark D. Zoback
Download or read book Unconventional Reservoir Geomechanics written by Mark D. Zoback and published by Cambridge University Press. This book was released on 2019-05-16 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the key geologic, geomechanical and engineering principles that govern the development of unconventional oil and gas reservoirs. Covering hydrocarbon-bearing formations, horizontal drilling, reservoir seismology and environmental impacts, this is an invaluable resource for geologists, geophysicists and reservoir engineers.
Book Synopsis Innovations in Enhanced and Improved Oil Recovery - New Advances by : Mansoor Zoveidavianpoor
Download or read book Innovations in Enhanced and Improved Oil Recovery - New Advances written by Mansoor Zoveidavianpoor and published by BoD – Books on Demand. This book was released on 2024-04-24 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book navigates the evolving landscape of Enhanced Oil Recovery (EOR) and Improved Oil Recovery (IOR), covering diverse topics such as lithological dynamics in CO2-EOR, the impact of asphaltene precipitation in WAG implementation, progress in CO2-EOR and storage technology, in situ foam generation for unconventional fractured reservoirs, electromagnetic radiation effects on heavy oil upgrading, advancements in hydraulic fracturing, in situ synthesis of nanoparticles, and operational insights in the Bakken Shale. This comprehensive volume serves as an indispensable resource for professionals and researchers in the ever-changing field of enhanced and improved oil recovery.
Book Synopsis Fundamentals of Enhanced Oil and Gas Recovery from Conventional and Unconventional Reservoirs by : Alireza Bahadori
Download or read book Fundamentals of Enhanced Oil and Gas Recovery from Conventional and Unconventional Reservoirs written by Alireza Bahadori and published by Gulf Professional Publishing. This book was released on 2018-08-18 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Enhanced Oil and Gas Recovery from Conventional and Unconventional Reservoirs delivers the proper foundation on all types of currently utilized and upcoming enhanced oil recovery, including methods used in emerging unconventional reservoirs. Going beyond traditional secondary methods, this reference includes advanced water-based EOR methods which are becoming more popular due to CO2 injection methods used in EOR and methods specific to target shale oil and gas activity. Rounding out with a chapter devoted to optimizing the application and economy of EOR methods, the book brings reservoir and petroleum engineers up-to-speed on the latest studies to apply. Enhanced oil recovery continues to grow in technology, and with ongoing unconventional reservoir activity underway, enhanced oil recovery methods of many kinds will continue to gain in studies and scientific advancements. Reservoir engineers currently have multiple outlets to gain knowledge and are in need of one product go-to reference. Explains enhanced oil recovery methods, focusing specifically on those used for unconventional reservoirs Includes real-world case studies and examples to further illustrate points Creates a practical and theoretical foundation with multiple contributors from various backgrounds Includes a full range of the latest and future methods for enhanced oil recovery, including chemical, waterflooding, CO2 injection and thermal
Book Synopsis Reservoir Engineering by : Abdus Satter
Download or read book Reservoir Engineering written by Abdus Satter and published by Gulf Professional Publishing. This book was released on 2015-09-22 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir Engineering focuses on the fundamental concepts related to the development of conventional and unconventional reservoirs and how these concepts are applied in the oil and gas industry to meet both economic and technical challenges. Written in easy to understand language, the book provides valuable information regarding present-day tools, techniques, and technologies and explains best practices on reservoir management and recovery approaches. Various reservoir workflow diagrams presented in the book provide a clear direction to meet the challenges of the profession. As most reservoir engineering decisions are based on reservoir simulation, a chapter is devoted to introduce the topic in lucid fashion. The addition of practical field case studies make Reservoir Engineering a valuable resource for reservoir engineers and other professionals in helping them implement a comprehensive plan to produce oil and gas based on reservoir modeling and economic analysis, execute a development plan, conduct reservoir surveillance on a continuous basis, evaluate reservoir performance, and apply corrective actions as necessary. Connects key reservoir fundamentals to modern engineering applications Bridges the conventional methods to the unconventional, showing the differences between the two processes Offers field case studies and workflow diagrams to help the reservoir professional and student develop and sharpen management skills for both conventional and unconventional reservoirs
Book Synopsis Reservoir Analysis of Blanket Sands Using a Numerical Multi-mechanistic Model by : Michael Bezilla
Download or read book Reservoir Analysis of Blanket Sands Using a Numerical Multi-mechanistic Model written by Michael Bezilla and published by . This book was released on 1989 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts written by and published by . This book was released on 1997 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Enhanced Oil Recovery by : Patrizio Raffa
Download or read book Chemical Enhanced Oil Recovery written by Patrizio Raffa and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-07-22 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at presenting, describing, and summarizing the latest advances in polymer flooding regarding the chemical synthesis of the EOR agents and the numerical simulation of compositional models in porous media, including a description of the possible applications of nanotechnology acting as a booster of traditional chemical EOR processes. A large part of the world economy depends nowadays on non-renewable energy sources, most of them of fossil origin. Though the search for and the development of newer, greener, and more sustainable sources have been going on for the last decades, humanity is still fossil-fuel dependent. Primary and secondary oil recovery techniques merely produce up to a half of the Original Oil In Place. Enhanced Oil Recovery (EOR) processes are aimed at further increasing this value. Among these, chemical EOR techniques (including polymer flooding) present a great potential in low- and medium-viscosity oilfields. • Describes recent advances in chemical enhanced oil recovery. • Contains detailed description of polymer flooding and nanotechnology as promising boosting tools for EOR. • Includes both experimental and theoretical studies. About the Authors Patrizio Raffa is Assistant Professor at the University of Groningen. He focuses on design and synthesis of new polymeric materials optimized for industrial applications such as EOR, coatings and smart materials. He (co)authored about 40 articles in peer reviewed journals. Pablo Druetta works as lecturer at the University of Groningen (RUG) and as engineering consultant. He received his Ph.D. from RUG in 2018 and has been teaching at a graduate level for 15 years. His research focus lies on computational fluid dynamics (CFD).
Book Synopsis Surface Chemistry of Surfactants and Polymers by : Bengt Kronberg
Download or read book Surface Chemistry of Surfactants and Polymers written by Bengt Kronberg and published by John Wiley & Sons. This book was released on 2014-12-31 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives the reader an introduction to the field of surfactants in solution as well as polymers in solution. Starting with an introduction to surfactants the book then discusses their environmental and health aspects. Chapter 3 looks at fundamental forces in surface and colloid chemistry. Chapter 4 covers self-assembly and 5 phase diagrams. Chapter 6 reviews advanced self-assembly while chapter 7 looks at complex behaviour. Chapters 8 to 10 cover polymer adsorption at solid surfaces, polymers in solution and surface active polymers, respectively. Chapters 11 and 12 discuss adsorption and surface and interfacial tension, while Chapters 13- 16 deal with mixed surfactant systems. Chapter 17, 18 and 19 address microemulsions, colloidal stability and the rheology of polymer and surfactant solutions. Wetting and wetting agents, hydrophobization and hydrophobizing agents, solid dispersions, surfactant assemblies, foaming, emulsions and emulsifiers and microemulsions for soil and oil removal complete the coverage in chapters 20-25.
Book Synopsis Basic Applied Reservoir Simulation by : Turgay Ertekin
Download or read book Basic Applied Reservoir Simulation written by Turgay Ertekin and published by . This book was released on 2001 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
