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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

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

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.

Fundamentals of Enhanced Oil Recovery Methods for Unconventional Oil Reservoirs

Fundamentals of Enhanced Oil Recovery Methods for Unconventional Oil Reservoirs Book
Author : Dheiaa Alfarge,Mingzhen Wei,Baojun Bai
Publisher : Elsevier
Release : 2020-09-18
ISBN : 0128183446
Language : En, Es, Fr & De

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Book Description :

Fundamentals of Enhanced Oil Recovery Methods for Unconventional Oil Reservoirs, Volume 67 provides important guidance on which EOR methods work in shale and tight oil reservoirs. This book helps readers learn the main fluid and rock properties of shale and tight reservoirs—which are the main target for EOR techniques—and understand the physical and chemical mechanisms for the injected EOR fluids to enhance oil recovery in shale and tight oil reservoirs. The book explains the effects of complex hydraulic fractures and natural fractures on the performance of each EOR technique. The book describes the parameters affecting obtained oil recovery by injecting different EOR methods in both the microscopic and macroscopic levels of ULR. This book also provides proxy models to associate the functionality of the improved oil recovery by injecting different EOR methods with different operating parameters, rock, and fluid properties. The book provides profesasionals working in the petroleum industry the know-how to conduct a successful project for different EOR methods in shale plays, while it also helps academics and students in understanding the basics and principles that make the performance of EOR methods so different in conventional reservoirs and unconventional formations. Provides a general workflow for how to conduct a successful project for different EOR methods in these shale plays Provides general guidelines for how to select the best EOR method according to the reservoir characteristics and wells stimulation criteria Explains the basics and principles that make the performance of EOR methods so different in conventional reservoirs versus unconventional formations

Tight Gas Reservoirs

Tight Gas Reservoirs Book
Author : Stephen A. Holditch,John Spivey,John A. Wang
Publisher :
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.

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
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. Professor Qiquan Ran has been involved in research on production geology, reservoir engineering, development planning, software development and development strategic planning for volcanic gas reservoirs and unconventional reservoirs. He has served as team leader on over 30 projects, including major projects, scientific research and decision-support projects for industry and technology research and service projects for oil fields. He also was the subject chief in the Major National Special Project "Safe development and utilization technology of natural gas reservoir containing CO2," and the National 973 Project "The effective internal structure characteristics and the flow law of volcanic gas reservoirs." Professor Ran has made significant innovative contributions in the field of development theory and technology for volcanic gas reservoirs, and pioneered advances in the corresponding theory and technology. As a chief expert and a team leader, Professor Ran completed the National 863 Project "Key technology and software development of numerical simulation of typical unconventional oil and gas reservoirs." His research promotes the development of theory & technology of unconventional reservoir development and numerical simulation. He has received 26 awards for science and technology achievements, including 8 first prizes at the provincial level. Professor Ran has published 10 books and over 105 papers, and holds 8 patents and 34 software copyrights.

Unconventional Reservoir Geomechanics

Unconventional Reservoir Geomechanics Book
Author : Mark D. Zoback,Arjun H. Kohli
Publisher : Cambridge University Press
Release : 2019-04-30
ISBN : 1107087074
Language : En, Es, Fr & De

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Book Description :

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.

Proceedings of the International Field Exploration and Development Conference 2018

Proceedings of the International Field Exploration and Development Conference 2018 Book
Author : Jia'en Lin
Publisher : Springer Nature
Release : 2019-10-02
ISBN : 981137127X
Language : En, Es, Fr & De

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Book Description :

This book gathers selected papers from the 8th International Field Exploration and Development Conference (IFEDC 2018) and addresses a broad range of topics, including: Reservoir Surveillance and Management, Reservoir Evaluation and Dynamic Description, Reservoir Production Stimulation and EOR, Ultra-Tight Reservoirs, Unconventional Oil and Gas Resources Technology, Oil and Gas Well Production Testing, and Geomechanics. In brief, the papers introduce readers to upstream technologies used in oil & gas development, the main principles of the process, and various related design technologies. The conference not only provided a platform to exchange experiences, but also promoted the advancement of scientific research in oil & gas exploration and production. The book is chiefly intended for industry experts, professors, researchers, senior engineers, and enterprise managers.

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 :
Release : 2018
ISBN :
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

Study on CO2 Huff n puff of Horizontal Wells in Continental Tight Oil Reservoirs

Study on CO2 Huff n puff of Horizontal Wells in Continental Tight Oil Reservoirs Book
Author : N.A
Publisher :
Release : 2017
ISBN :
Language : En, Es, Fr & De

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Book Description :

Highlights: A poro-elasticity simulation model of tight oil reservoir was developed. Biot's coefficient has a significant influence on oil recovery factor. Sensitivity analysis of the injection parameters is conducted. Abstract: A poro-elasticity reservoir simulation model was developed to analyze the huff-n-puff operations in the Fuyu continental tight oil layer. The model was based on the "two-way" coupling of a geomechanical model and a compositional model. The pressures induced from the compositional model were set as input for the geomechanical model, and the effective stresses calculated from the geomechanical model were set as input for the compositional model. The results show that under specific assumptions, effective stress increases during the depletion and production period and decreases during the injection and soaking period, resulting in corresponding changes to the displacement and effective stress. Biot coefficient also has a significant and systematic influence on the resulting oil recovery factor of CO2 huff-n-puff. In addition, a sensitivity analysis of the injection parameters, including injection timing, production time, and soaking time, was performed in detail. This work provides a better understanding of the mechanisms of the CO2 huff-n-puff operations of horizontal wells in a continental tight oil sandstone formation.

Unconventional Gas and Tight Oil Exploitation

Unconventional Gas and Tight Oil Exploitation Book
Author : Roberto Aguilera
Publisher :
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.

Flow and Transport Properties of Unconventional Reservoirs 2018

Flow and Transport Properties of Unconventional Reservoirs 2018 Book
Author : Jianchao Cai,Zhien Zhang,Qinjun Kang,Harpreet Singh
Publisher : MDPI
Release : 2019-07-23
ISBN : 3039211161
Language : En, Es, Fr & De

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Book Description :

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.

Effectiveness of Miscible and Immiscible Gas Flooding in Recovering Tight Oil from Bakken Reservoirs in Saskatchewan Canada

Effectiveness of Miscible and Immiscible Gas Flooding in Recovering Tight Oil from Bakken Reservoirs in Saskatchewan  Canada Book
Author : N.A
Publisher :
Release : 2017
ISBN :
Language : En, Es, Fr & De

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Book Description :

Abstract: Oil production from unconventional tight Bakken reservoirs in North America has been booming since the early 2000s because of the widespread application of horizontal well drilling and multi-stage hydraulic fracturing technologies. Tight oil recovery is made difficult by the extremely low permeability and porosity of the oil-hosting rocks. Two key characteristics in tight oil production are the steep decline in oil production rate and the low ultimate oil recovery. Therefore, maintaining oil production and improving a field project's economic benefits become urgent issues for the development of tight oil resources. The substantial amounts of residual oil left behind in tight reservoirs demand a viable and effective enhanced oil recovery (EOR) technology after the primary recovery process. This research investigated the effectiveness of miscible or immiscible gas flooding processes using four possible injection gas candidates (i.e., CO2, CO2 -enriched flue gas, oilfield-produced gas, and nitrogen) for Bakken tight oil reservoirs in southeast Saskatchewan, Canada. The phase behaviour of the reconstituted live oil–injection gas systems was studied through pressure/volume/temperature (PVT) tests in which important recovery mechanisms of gas flooding, i.e., viscosity reduction and oil swelling effects, were revealed. The minimum miscibility pressures (MMP) for the live oil–injected gas systems were determined using the rising bubble method. The experimental results demonstrated that CO2 had the lowest MMP and largest viscosity reduction and oil swelling among all the tested gases. Therefore, CO2 flooding is considered technically feasible as a miscible process at the current reservoir conditions, while the use of the other three gases would result in an immiscible process. Finally, four coreflood tests using reservoir cores from the Viewfield Bakken field were conducted to evaluate the displacement efficiency. Each coreflood comprised four stages (pressure depletion, initial waterflood, gas injection, and extended waterflood) to represent the actual field production practice. Oil recovery performance confirmed that CO2 miscible flooding was significantly more effective than immiscible flooding with the other injection gases.

Fluid Phase Behavior for Conventional and Unconventional Oil and Gas Reservoirs

Fluid Phase Behavior for Conventional and Unconventional Oil and Gas Reservoirs Book
Author : Alireza Bahadori
Publisher : Gulf Professional Publishing
Release : 2016-11-24
ISBN : 0128034467
Language : En, Es, Fr & De

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Book Description :

Fluid Phase Behavior for Conventional and Unconventional Oil and Gas Reservoirs delivers information on the role of PVT (pressure-volume-temperature) tests/data in various aspects, in particular reserve estimation, reservoir modeling, flow assurance, and enhanced oil recovery for both conventional and unconventional reservoirs. This must-have reference also prepares engineers on the importance of PVT tests, how to evaluate the data, develop an effective management plan for flow assurance, and gain perspective of flow characterization, with a particular focus on shale oil, shale gas, gas hydrates, and tight oil making. This book is a critical resource for today’s reservoir engineer, helping them effectively manage and maximize a company’s oil and gas reservoir assets. Provides tactics on reservoir phase behavior and dynamics with new information on shale oil and gas hydrates Helps readers Improve on the effect of salt concentration and application to C02-Acid Gas Disposal with content on water-hydrocarbon systems Provides practical experience with PVT and tuning of EOS with additional online excel spreadsheet examples

Proceedings of the International Field Exploration and Development Conference 2017

Proceedings of the International Field Exploration and Development Conference 2017 Book
Author : Zhan Qu,Jia'en Lin
Publisher : Springer
Release : 2018-08-24
ISBN : 9811075603
Language : En, Es, Fr & De

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Book Description :

This book presents selected papers from the 7th International Field Exploration and Development Conference (IFEDC 2017), which focus on upstream technologies used in oil & gas development, the principles of the process, and various design technologies. The conference not only provides a platform for exchanging lessons learned, but also promotes the development of scientific research in oil & gas exploration and production. The book will benefit a broad readership, including industry experts, researchers, educators, senior engineers and managers.

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