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Shale Gas and Tight Oil Reservoir Simulation

Shale Gas and Tight Oil Reservoir Simulation Book
Author : Wei Yu,Kamy Sepehrnoori
Publisher : Gulf Professional Publishing
Release : 2018-08-10
ISBN : 0128138696
Language : En, Es, Fr & De

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Book Description :

Shale Gas and Tight Oil Reservoir Simulation delivers the latest research and applications used to better manage and interpret simulating production from shale gas and tight oil reservoirs. Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve estimation, but also predict the effective range of reservoir and fracture properties through multiple history matching solutions. Also included are new insights into the numerical modelling of CO2 injection for enhanced oil recovery in tight oil reservoirs. This information is critical for a better understanding of the impacts of key reservoir properties and complex fractures. Models the well performance of shale gas and tight oil reservoirs with complex fracture geometries Teaches how to perform sensitivity studies, history matching, production forecasts, and economic optimization for shale-gas and tight-oil reservoirs Helps readers investigate data mining techniques, including the introduction of nonparametric smoothing models

Unconventional Gas and Tight Oil Exploitation

Unconventional Gas and Tight Oil Exploitation Book
Author : Roberto Aguilera
Publisher : Unknown
Release : 2020-09-15
ISBN : 9781613994580
Language : En, Es, Fr & De

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Book Description :

Unconventional Gas and Tight Oil Exploitation takes an in-depth look at unconventional low-permeability resource accumulations, the required technologies for specialized development, and the assessments currently being applied. With an author team of 14 subject-matter experts with specialization in different tight oil and unconventional-gas areas, this new book is an authoritative resource for those looking to increase recoverable resources. A must read for those wanting to make a significant positive impact on global energy markets while respecting the environment. Changes to global energy markets, shifts in international oil-supply projections, advancements in horizontal drilling and multistage hydraulic-fracturing technologies-these realities coalesce to potentially extend natural gas and oil supplies by several decades by current levels of consumption. In Unconventional Gas and Tight Oil Exploitation, the authors lend their expertise to offer an in-depth look at unconventional low-permeability resource accumulations, the required technologies for specialized development, and the assessments currently being applied. While percent recoveries from unconventional gas and tight oil accumulations have been very low compared with conventional reservoirs, these unconventional resources have been enough to dramatically change the slope of production decline in the United States from negative to positive in a very short period of time. This change of slope is "magic" and reflects the creativity of the oil and gas industry. The authors of this book seek to ascertain and explore the challenges and opportunities associated with the current commercial development techniques in an effort to fully understand the reservoirs, the mode of petroleum storage and transport within the reservoirs, the design of drilling and completion programs, and the physics behind formation analyses. Through this understanding, unconventional gas and tight oil exploitation techniques can be developed further, resulting in low production costs, improved economics, increase in technically recoverable resources while respecting the environment, and significant positive impact of gas and tight oil developments globally.

Petrophysical Characterization of Tight Oil Reservoirs Using Pressure controlled Porosimetry Combined with Rate controlled Porosimetry

Petrophysical Characterization of Tight Oil Reservoirs Using Pressure controlled Porosimetry Combined with Rate controlled Porosimetry Book
Author : Anonim
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Petrophysical Characterization of Tight Oil Reservoirs Using Pressure controlled Porosimetry Combined with Rate controlled Porosimetry book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Unconventional Reservoir Rate Transient Analysis

Unconventional Reservoir Rate Transient Analysis Book
Author : Christopher R. Clarkson
Publisher : Gulf Professional Publishing
Release : 2021-06-25
ISBN : 0323901174
Language : En, Es, Fr & De

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Book Description :

Unconventional Reservoir Rate-Transient Analysis: Volume One, Fundamentals, Analysis Methods and Workflow provides a comprehensive review of RTA methods, helping petroleum engineers and geoscientists understand how to confidently apply RTA to tight reservoirs exhibiting single-phase flow of oil and gas. The book provides practitioners with an overview of the basic concepts used in RTA, including flow-regime identification and application of straight-line analysis, type-curve analysis, and model history-matching approaches that are applicable to low-complexity, tight reservoirs exhibiting single-phase flow of oil and gas. Workflow steps are discussed and illustrated in detail for hydraulically fractured vertical wells and multi-fractured horizontal wells. Supported by many real-world field examples, this comprehensive resource supplies today’s petroleum engineers and geoscientists with an overview of RTA methods as applied to tight reservoirs. A companion text, Unconventional Reservoir Rate-Transient Analysis: Volume Two, Application to Complex Reservoirs, Exploration and Development bridges a critical knowledge gap to help practicing petroleum engineers and geoscientists understand how RTA methods can be adopted and applied to today’s unconventional reservoirs. Reviews key concepts and analysis methods used in modern rate-transient analysis (RTA) as applied to low-permeability ("tight") oil and gas reservoirs Provides a workflow for confident derivation of reservoir/hydraulic fracture properties and hydrocarbon-in-place estimates for wells completed in unconventional reservoirs Includes detailed discussions and illustrations of each step of the workflow using field examples

Capillary Pressure Curve and Liquid Permeability Estimation in Tight Oil Reservoirs Using Pressure Decline Versus Time Data

Capillary Pressure Curve and Liquid Permeability Estimation in Tight Oil Reservoirs Using Pressure Decline Versus Time Data Book
Author : Williams Osagie Ozowe
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Estimating oil recovery from shale is a difficult process because organic mudrocks have very low permeability (10nD – 100nD), high kerogen and clay content, a complex pore structure and low porosity (typically less than 10%). In addition, most of the pore sizes in organic mudrocks are within the nanometer range, thus making the process of oil intrusion very difficult to achieve and even harder to measure with certainty. Several methods have been proposed to estimate saturation profiles and capillary pressure curves in conventional rocks, but these methods fail in tight rocks because of the complexities inherent in these types of reservoirs. This report presents a new method that makes use of the pressure decline versus time data to estimate the capillary pressure drainage curve in tight rocks. The method was used to estimate the capillary drainage curve for an Eagle Ford shale and it was also used to determine the shale’s liquid permeability using the early time data of the pressure decline curve. The data obtained during the experiment could be used to estimate fluid saturations as a function of time which can be very useful in determining relative permeability curves in the shale. This new procedure is easy, fast and can be reversed to estimate imbibition curves as well. It can be applied to both conventional and unconventional rocks and it can be useful in EOR experiments to estimate oil recovery as a function of time. Furthermore, this report presents the use of NMR as a useful tool in examining fluid distributions and characterizing fluid types within tight rocks, via a combination of NMR T1 and T2 data

Multi frac Treatments in Tight Oil and Shale Gas Reservoirs

Multi frac Treatments in Tight Oil and Shale Gas Reservoirs Book
Author : Abdul Muqtadir Khan
Publisher : Unknown
Release : 2013
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The vast shale gas and tight oil reservoirs in North America cannot be economically developed without multi-stage hydraulic fracture treatments. Owing to the disparity in the density of natural fractures in addition to the disparate in-situ stress conditions in these kinds of formations, microseismic fracture mapping has shown that hydraulic fracture treatments develop a range of large-scale fracture networks in the shale plays. In this thesis, an approach is presented, where the fracture networks approximated with microseismic mapping are integrated with a commercial numerical production simulator that discretely models the network structure in both vertical and horizontal wells. A novel approach for reservoir simulation is used, where porosity (instead of permeability) is used as a scaling parameter for the fracture width. Two different fracture geometries have been broadly proposed for a multi stage horizontal well, orthogonal and transverse. The orthogonal pattern represents a complex network with cross cutting fractures orthogonal to each other; whereas transverse pattern maps uninterrupted fractures achieving maximum depth of penetration into the reservoir. The response for a single-stage fracture is further investigated by comparing the propagation of the stage to be dendritic versus planar. A dendritic propagation is bifurcation of the hydraulic fracture due to intersection with the natural fracture (failure along the plane of weakness). The impact of fracture spacing to optimize these fracture geometries is studied. A systematic optimization for designing the fracture length and width is also presented. The simulation is motivated by the oil window of Eagle Ford shale formation and the results of this work illustrate how different fracture network geometries impact well performance, which is critical for improving future horizontal well completions and fracturing strategies in low permeability shale and tight oil reservoirs. A rate transient analysis (RTA) technique employing a rate normalized pressure (RNP) vs. superposition time function (STF) plot is used for the linear flow analysis. The parameters that influence linear flow are analytically derived. It is found that picking a straight line on this curve can lead to erroneous results because multiple solutions exist. A new technique for linear flow analysis is used. The ratio of derivative of inverse production and derivative of square root time is plotted against square root time and the constant derivative region is seen to be indicative of linear flow. The analysis is found to be robust because different simulation cases are modeled and permeability and fracture half-length are estimated.

Tight Oil Reservoirs

Tight Oil Reservoirs Book
Author : Hadi Belhaj
Publisher : Gulf Professional Publishing
Release : 2020-11
ISBN : 9780128202692
Language : En, Es, Fr & De

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Book Description :

Unconventional reservoirs have gained a permanent position in the oil and gas industry, but petroleum engineers still rely on conventional resources and make assumptions. Unconventional Reservoir Engineering Series was created to bring a powerful suite of volumes for today's engineer, with each volume devoted to a specific unconventional resource. Each volume is structured to: Introduce the resource Explain the importance in the market Show the benefits of the resource through latest research Provide details/protocol how to evaluate and develop the resource Give case studies and practice questions to gain practicality The first volume in the series, Tight Oil Reservoirs, delivers a full spectrum of reservoir engineering guidelines so that the engineer can focus on every stage of development specific to tight oil. Covering characterization, micro- and nano-scale modeling, drilling horizontally, completing hydraulic fracturing, and field development, each section includes case studies, practice exercises, and future references for even deeper understanding. Rounding out with coverage on field economics and remaining challenges, Unconventional Reservoir Engineering Series Volume I: Tight Oil Reservoirs puts control in the engineer's hands who are ready to truly learn more about optimizing unconventional resources.

Unconventional Tight Reservoir Simulation Theory Technology and Practice

Unconventional Tight Reservoir Simulation  Theory  Technology and Practice Book
Author : Qiquan Ran
Publisher : Springer Nature
Release : 2020-08-14
ISBN : 9813298480
Language : En, Es, Fr & De

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Book Description :

This book systematically introduces readers to the simulation theory and techniques of multiple media for unconventional tight reservoirs. It summarizes the macro/microscopic heterogeneities; the features of multiscale multiple media; the characteristics of complex fluid properties; the occurrence state of continental tight oil and gas reservoirs in China; and the complex flow characteristics and coupled production mechanism under unconventional development patterns. It also discusses the simulation theory of multiple media for unconventional tight oil and gas reservoirs; mathematic model of flow through discontinuous multiple media; geological modeling of discrete multiscale multiple media; and the simulation of multiscale, multiphase flow regimes and multiple media. In addition to the practical application of simulation and software for unconventional tight oil and gas, it also explores the development trends and prospects of simulation technology. The book is of interest to scientific researchers and technicians engaged in the development of oil and gas reservoirs, and serves as a reference resource for advanced graduate students in fields related to petroleum.

Unconventional Petroleum Geology

Unconventional Petroleum Geology Book
Author : Caineng Zou
Publisher : Elsevier
Release : 2017-03-10
ISBN : 0128122358
Language : En, Es, Fr & De

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Book Description :

Unconventional Petroleum Geology, Second Edition presents the latest research results of global conventional and unconventional petroleum exploration and production. The first part covers the basics of unconventional petroleum geology, its introduction, concept of unconventional petroleum geology, unconventional oil and gas reservoirs, and the origin and distribution of unconventional oil and gas. The second part is focused on unconventional petroleum development technologies, including a series of technologies on resource assessment, lab analysis, geophysical interpretation, and drilling and completion. The third and final section features case studies of unconventional hydrocarbon resources, including tight oil and gas, shale oil and gas, coal bed methane, heavy oil, gas hydrates, and oil and gas in volcanic and metamorphic rocks. Provides an up-to-date, systematic, and comprehensive overview of all unconventional hydrocarbons Reorganizes and updates more than half of the first edition content, including four new chapters Includes a glossary on unconventional petroleum types, including tight-sandstone oil and gas, coal-bed gas, shale gas, oil and gas in fissure-cave-type carbonate rocks, in volcanic reservoirs, and in metamorphic rocks, heavy crude oil and natural bitumen, and gas hydrates Presents new theories, new methods, new technologies, and new management methods, helping to meet the demands of technology development and production requirements in unconventional plays

Enhanced Oil Recovery in Shale and Tight Reservoirs

Enhanced Oil Recovery in Shale and Tight Reservoirs Book
Author : James J.Sheng
Publisher : Gulf Professional Publishing
Release : 2019-11-07
ISBN : 0128162716
Language : En, Es, Fr & De

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Book Description :

Oil Recovery in Shale and Tight Reservoirs delivers a current, state-of-the-art resource for engineers trying to manage unconventional hydrocarbon resources. Going beyond the traditional EOR methods, this book helps readers solve key challenges on the proper methods, technologies and options available. Engineers and researchers will find a systematic list of methods and applications, including gas and water injection, methods to improve liquid recovery, as well as spontaneous and forced imbibition. Rounding out with additional methods, such as air foam drive and energized fluids, this book gives engineers the knowledge they need to tackle the most complex oil and gas assets. Helps readers understand the methods and mechanisms for enhanced oil recovery technology, specifically for shale and tight oil reservoirs Includes available EOR methods, along with recent practical case studies that cover topics like fracturing fluid flow back Teaches additional methods, such as soaking after fracturing, thermal recovery and microbial EOR

Assisted History Matching for Unconventional Reservoirs

Assisted History Matching for Unconventional Reservoirs Book
Author : Sutthaporn Tripoppoom,Wei Yu,Kamy Sepehrnoori,Jijun Miao
Publisher : Gulf Professional Publishing
Release : 2021-08-11
ISBN : 0128222433
Language : En, Es, Fr & De

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Book Description :

As unconventional reservoir activity grows in demand, reservoir engineers relying on history matching are challenged with this time-consuming task in order to characterize hydraulic fracture and reservoir properties, which are expensive and difficult to obtain. Assisted History Matching for Unconventional Reservoirs delivers a critical tool for today’s engineers proposing an Assisted History Matching (AHM) workflow. The AHM workflow has benefits of quantifying uncertainty without bias or being trapped in any local minima and this reference helps the engineer integrate an efficient and non-intrusive model for fractures that work with any commercial simulator. Additional benefits include various applications of field case studies such as the Marcellus shale play and visuals on the advantages and disadvantages of alternative models. Rounding out with additional references for deeper learning, Assisted History Matching for Unconventional Reservoirs gives reservoir engineers a holistic view on how to model today’s fractures and unconventional reservoirs. Provides understanding on simulations for hydraulic fractures, natural fractures, and shale reservoirs using embedded discrete fracture model (EDFM) Reviews automatic and assisted history matching algorithms including visuals on advantages and limitations of each model Captures data on uncertainties of fractures and reservoir properties for better probabilistic production forecasting and well placement

Embedded Discrete Fracture Modeling and Application in Reservoir Simulation

Embedded Discrete Fracture Modeling and Application in Reservoir Simulation Book
Author : Kamy Sepehrnoori,Yifei Xu,Wei Yu
Publisher : Elsevier
Release : 2020-08-27
ISBN : 0128196882
Language : En, Es, Fr & De

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Book Description :

The development of naturally fractured reservoirs, especially shale gas and tight oil reservoirs, exploded in recent years due to advanced drilling and fracturing techniques. However, complex fracture geometries such as irregular fracture networks and non-planar fractures are often generated, especially in the presence of natural fractures. Accurate modelling of production from reservoirs with such geometries is challenging. Therefore, Embedded Discrete Fracture Modeling and Application in Reservoir Simulation demonstrates how production from reservoirs with complex fracture geometries can be modelled efficiently and effectively. This volume presents a conventional numerical model to handle simple and complex fractures using local grid refinement (LGR) and unstructured gridding. Moreover, it introduces an Embedded Discrete Fracture Model (EDFM) to efficiently deal with complex fractures by dividing the fractures into segments using matrix cell boundaries and creating non-neighboring connections (NNCs). A basic EDFM approach using Cartesian grids and advanced EDFM approach using Corner point and unstructured grids will be covered. Embedded Discrete Fracture Modeling and Application in Reservoir Simulation is an essential reference for anyone interested in performing reservoir simulation of conventional and unconventional fractured reservoirs. Highlights the current state-of-the-art in reservoir simulation of unconventional reservoirs Offers understanding of the impacts of key reservoir properties and complex fractures on well performance Provides case studies to show how to use the EDFM method for different needs

Unconventional Reservoir Geomechanics

Unconventional Reservoir Geomechanics Book
Author : Mark D. Zoback,Arjun H. Kohli
Publisher : Cambridge University Press
Release : 2019-05-16
ISBN : 1108653111
Language : En, Es, Fr & De

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Book Description :

Since the beginning of the US shale gas revolution in 2005, the development of unconventional oil and gas resources has gathered tremendous pace around the world. This book provides a comprehensive overview of the key geologic, geophysical, and engineering principles that govern the development of unconventional reservoirs. The book begins with a detailed characterization of unconventional reservoir rocks: their composition and microstructure, mechanical properties, and the processes controlling fault slip and fluid flow. A discussion of geomechanical principles follows, including the state of stress, pore pressure, and the importance of fractures and faults. After reviewing the fundamentals of horizontal drilling, multi-stage hydraulic fracturing, and stimulation of slip on pre-existing faults, the key factors impacting hydrocarbon production are explored. The final chapters cover environmental impacts and how to mitigate hazards associated with induced seismicity. This text provides an essential overview for students, researchers, and industry professionals interested in unconventional reservoirs.

Unconventional Reservoir Geomechanics

Unconventional Reservoir Geomechanics Book
Author : Mark D. Zoback,Arjun H. Kohli
Publisher : Unknown
Release : 2016
ISBN : 9781316091869
Language : En, Es, Fr & De

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Book Description :

Since the beginning of the US shale gas revolution in 2005, the development of unconventional oil and gas resources has gathered tremendous pace around the world. This book provides a comprehensive overview of the key geologic, geophysical, and engineering principles that govern the development of unconventional reservoirs. The book begins with a detailed characterization of unconventional reservoir rocks: their composition and microstructure, mechanical properties, and the processes controlling fault slip and fluid flow. A discussion of geomechanical principles follows, including the state of stress, pore pressure, and the importance of fractures and faults. After reviewing the fundamentals of horizontal drilling, multi-stage hydraulic fracturing, and stimulation of slip on pre-existing faults, the key factors impacting hydrocarbon production are explored. The final chapters cover environmental impacts and how to mitigate hazards associated with induced seismicity. This text provides an essential overview for students, researchers, and industry professionals interested in unconventional reservoirs.

Surfactant Flooding of Tight Oil wet Carbonate Reservoirs

Surfactant Flooding of Tight Oil wet Carbonate Reservoirs Book
Author : Kshitij Mohan
Publisher : Unknown
Release : 2010
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Surfactant Flooding of Tight Oil wet Carbonate Reservoirs book written by Kshitij Mohan, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

The Interaction of Shale fracture fluid and Their Influence on Production from an Unconventional Tight Oil Reservoir

The Interaction of Shale fracture fluid and Their Influence on Production from an Unconventional Tight Oil Reservoir Book
Author : Caleb Conrad
Publisher : Unknown
Release : 2014
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The interaction of shale/fracture/fluid interactions and the resulting geomechanical behavior of shale oil unconventional reservoirs is becoming of greater interest as the impact of pressure dependent fracture conductivity is better understood. As more operators develop these resources the diversity in the constituents of the shale and the presence of water-sensitive clays require different approach to yield better EUR results. These efficiency gains are more than just placing proppant and identifying the best acreage with good natural fracture systems. By controlling clay/fluid interactions it is possible to improve pressure dependent fracture conductivity response and improve EUR. The focus of this paper is to investigate stress dependent fracture conductivity, shale/fracture/fluid interactions and the potential of more intelligent completions to improve EUR.

Tight Gas Reservoirs

Tight Gas Reservoirs Book
Author : Stephen A. Holditch,John Spivey,John A. Wang
Publisher : Unknown
Release : 2020-08-17
ISBN : 9781613998182
Language : En, Es, Fr & De

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Book Description :

The development of tight-gas reservoirs over the last half-century has profoundly affected and expanded the petroleum industry. Moreover, our improved understanding of tight-gas reservoirs--from finding, characterizing, testing, modeling and developing them to producing their resources economically--can be felt not only throughout our industry but also throughout our economy and, indeed, our daily routines. Abundant, reliable, and inexpensive natural gas has truly transformed many aspects of our modern lifestyles. Within the last decade, for example, the world has made great strides in switching from coal-fired to gas-fired electricity generation (with a resulting reduction of US CO2 emissions of 14% since 2005*). Our expanded knowledge of natural-gas development and production has further advanced the goal of achieving energy independence, transforming the US from a gas importer into the third largest liquid natural gas (LNG) exporter in the world. It is truly hard to overstate the efficacy of our understanding and exploitation of tight-gas reservoirs. The four parts contained in this book methodically and comprehensively unfold the technical elements of developing tight-gas reservoirs. They are written - with an industry-wide audience in mind - to help the student understand fundamental concepts - to provide comprehensive reference material for the experienced engineer - for the practitioner in the field looking for case studies and analogues - for those readers curious of mathematical detail and theory, where it will surely lay the foundation for many future academic investigations and doctoral theses This book is comprehensive enough to apply equally to those readers interested in tight-oil reservoirs--common fundamentals, many similar concepts, just larger molecules. This book's organization supports its methodological approach. Part 1 introduces tight-gas resources, including definitions and beginning concepts. Thorough analyses of tight-gas resource types (conventional, shale, and coalbed methane) and their geographical distribution and reserves are given. This part describes shale-gas plays within North America in detail. Part 2 begins where the study of all reservoirs begin, with detailed characterization. Chapters within this part discuss geological considerations over various scales, as well as detailed concepts in well testing and modeling to determine necessary formation properties. Part 3 details all aspects of designing, planning, modeling, and executing hydraulic fracture treatments and provides details on fracture initiation, geometry, and propagation. Part 4 contains 23 case histories of tight gas reservoir development.