Fractured Vuggy Carbonate Reservoir Simulation

Fractured Vuggy Carbonate Reservoir Simulation PDF

Author: Jun Yao

Publisher: Springer

Published: 2017-08-08

Total Pages: 245

ISBN-13: 3662550326

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This book solves the open problems in fluid flow modeling through the fractured vuggy carbonate reservoirs. Fractured vuggy carbonate reservoirs usually have complex pore structures, which contain not only matrix and fractures but also the vugs and cavities. Since the vugs and cavities are irregular in shape and vary in diameter from millimeters to meters, modeling fluid flow through fractured vuggy porous media is still a challenge. The existing modeling theory and methods are not suitable for such reservoir. It starts from the concept of discrete fracture and fracture-vug networks model, and then develops the corresponding mathematical models and numerical methods, including discrete fracture model, discrete fracture-vug model, hybrid model and multiscale models. Based on these discrete porous media models, some equivalent medium models and methods are also discussed. All the modeling and methods shared in this book offer the key recent solutions into this area.

Dynamic Description Technology of Fractured Vuggy Carbonate Gas Reservoirs

Dynamic Description Technology of Fractured Vuggy Carbonate Gas Reservoirs PDF

Author: Hedong Sun

Publisher: Gulf Professional Publishing

Published: 2019-04-12

Total Pages: 367

ISBN-13: 012818325X

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Dynamic Description Technology of Fractured Vuggy Carbonate Gas Reservoirs delivers a critical reference to reservoir and production engineers on the basic characteristics of fractured vuggy gas reservoirs, combining both static and dynamic data to improve reservoir characterization accuracy and development. Based on the full lifecycle of well testing and advanced production decline analysis, this reference also details how to apply reservoir dynamic evaluation and reserve estimation and performance forecasting. Offering one collective location for the latest research on fractured gas reservoirs, this reference also covers physical models, analysis examples, and processes, 3D numerical well test technology, and deconvolution technology of production decline analysis. Packed with many calculation examples and more than 100 case studies, this book gives engineers a strong tool to further exploit these complex assets. Presents advanced knowledge in well test and production decline analysis, along with performance forecasting that is specific to fractured vuggy carbonate gas reservoirs Helps readers understand the characteristics, advantages, disadvantages and current limitations in technology of fractured vuggy carbonate gas reservoirs Provides a bridge from theory to practice by combining static and dynamic data to form more accurate real-world analysis and modeling

Models for Naturally Fractured, Carbonate Reservoir Simulations

Models for Naturally Fractured, Carbonate Reservoir Simulations PDF

Author:

Publisher:

Published: 1998

Total Pages: 16

ISBN-13:

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This report outlines the need for new tools for the simulation of fractured carbonate reservoirs. Several problems are identified that call for the development of new reservoir simulation physical models and numerical techniques. These include: karst and vuggy media wherein Darcy's and traditional multi-phase flow laws do not apply; the need for predicting the preproduction state of fracturing and stress so that the later response of effective stress-dependent reservoirs can be predicted; and methods for predicting the fracturing and collapse of vuggy and karst reservoirs in response to draw-down pressure created during production. Specific research directions for addressing each problem are outlined and preliminary results are noted.

Pressure Transient Test Analysis of Vuggy Naturally Fractured Carbonate Reservoir

Pressure Transient Test Analysis of Vuggy Naturally Fractured Carbonate Reservoir PDF

Author: Babatunde Tolulope Ajayi

Publisher:

Published: 2010

Total Pages:

ISBN-13:

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Well pressure transient analysis is widely used in reservoir management to obtain reservoir information needed for reservoir simulation, damage identification, well optimization and stimulation evaluation. The main objective of this project is to analyze, interpret and categorize the pressure transient responses obtained from 22 wells in a vuggy naturally fractured carbonate reservoir in an attempt to understand the heterogeneities of the porosity system. Different modeling techniques useful in simulating well behavior in vuggy naturally fractured reservoirs were developed and categorized. The research focused on pressure transient analysis using homogeneous, radial composite, single fracture, dual porosity and triple porosity reservoir models along with conventional boundary models which show boundary limits including single and double sealing boundary, closure and constant pressure boundary. A triple porosity model was developed, and it proved to be very effective for use in the analysis of the pressure responses obtained from this field. For some wells, the need for new models to characterize the pressure responses in more complex reservoirs was highlighted as conventional models failed.

Geologic Analysis of Naturally Fractured Reservoirs

Geologic Analysis of Naturally Fractured Reservoirs PDF

Author: Ronald Nelson

Publisher: Elsevier

Published: 2001-08-24

Total Pages: 352

ISBN-13: 0080507298

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Geologists, engineers, and petrophysicists concerned with hydrocarbon production from naturally fractured reservoirs will find this book a valuable tool for obtaining pertinent rock data to evaluate reserves and optimize well location and performance. Nelson emphasizes geological, petrophysical, and rock mechanics to complement other studies of the subject that use well logging and classical engineering approaches. This well organized, updated edition contains a wealth of field and laboratory data, case histories, and practical advice. A great how-to-guide for anyone working with fractured or highly anisotropic reservoirs Provides real-life illustrations through case histories and field and laboratory data

Unconventional Tight Reservoir Simulation: Theory, Technology and Practice

Unconventional Tight Reservoir Simulation: Theory, Technology and Practice PDF

Author: Qiquan Ran

Publisher: Springer Nature

Published: 2020-08-14

Total Pages: 411

ISBN-13: 9813298480

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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.

Naturally Fractured Reservoirs

Naturally Fractured Reservoirs PDF

Author: Roberto Aguilera

Publisher: Pennwell Corporation

Published: 1995

Total Pages: 521

ISBN-13: 9780878144495

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This publication deals exclusively with naturally fractured reservoirs, and includes many subjects usually treated in separate volumes. It is written for students, reservoir geologists, log analysts and petroleum engineers.

Carbonate Reservoir Heterogeneity

Carbonate Reservoir Heterogeneity PDF

Author: Vahid Tavakoli

Publisher: Springer Nature

Published: 2019-11-11

Total Pages: 108

ISBN-13: 3030347737

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This book provides a comprehensive overview of the parameters and factors that cause heterogeneity in carbonate reservoirs, and examines how they interact with one another. It explores the various scales of heterogeneity, how they are caused, and how they can be minimized, as well as how the scales affect each other, providing practical examples in each chapter. The book concludes by discussing the effect of heterogeneity on petrophysical evaluations. As reducing heterogeneity is the only way to obtain accurate carbonate reservoir characteristics at the regional scale, the book offers an important reference guide for all geologists, engineers, and modelers working with subsurface data.

Investigation of Post-acid Stimulation Impacts on Well Performance Using Fracture Modeling and Reservoir Simulation in a Jurassic Carbonate Reservoir

Investigation of Post-acid Stimulation Impacts on Well Performance Using Fracture Modeling and Reservoir Simulation in a Jurassic Carbonate Reservoir PDF

Author: Muaath Alansari

Publisher:

Published: 2021

Total Pages: 57

ISBN-13:

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"Well stimulation (well fracturing) became an essential tool in the Oil and Gas industry to unlock the potential of unconventional reservoirs all over the world and especially in the Middle East. In Kuwait, well stimulation is obligatory when dealing with deep Jurassic carbonate reservoirs. Thus, the well fracture designing process plays a very critical role in determining the success of the stimulation job and the improvement of the recovery. Several wells stimulated with 20% HCL have shown wide variations in both short and long term well production performance. The research aims to investigate and identify the possible reasons causing these variations by creating an integrated workflow comprised of two modeling sections using actual field data. Fracture Modeling; to assess the fracturing operation and obtain the fracture geometry and conductivity using StimPlan software. Reservoir Simulation; to test the fracture design by the performance of the well using Petrel and Eclipse software. The iterative process in the workflow also gives the ability to tailor the design to reach the maximum potential of the well. Three major reasons are suspected to be behind the underperformance of the investigated well. First, human errors in planning and gathering the required data for the stimulation job. Second, the stress contrast between the layers allows the fracture to propagate vertically giving more fracture height than length. Third, the fracture orientation, which has a great effect on the long-term performance by allowing the induced fracture to intersect with the formation and the natural fractures"--Abstract, page iii.

Development of Unconventional Reservoirs

Development of Unconventional Reservoirs PDF

Author: Reza Rezaee

Publisher: MDPI

Published: 2020-04-16

Total Pages: 522

ISBN-13: 3039285807

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The need for energy is increasing and but the production from conventional reservoirs is declining quickly. This requires an economically and technically feasible source of energy for the coming years. Among some alternative future energy solutions, the most reasonable source is from unconventional reservoirs. As the name “unconventional” implies, different and challenging approaches are required to characterize and develop these resources. This Special Issue covers some of the technical challenges for developing unconventional energy sources from shale gas/oil, tight gas sand, and coalbed methane.