Dynamic description technology of fractured vuggy carbonate gas reservoirs / Tongwen Jiang, Hedong Sun and Xingliang Deng.

Format:

Book

Author/Creator:

Jiang, Tongwen, author.

Sun, Hedong, author.

Deng, Xingliang, author.

Language:

English

Subjects (All):

Petroleum engineering.

Physical Description:

1 online resource (370 pages) : illustrations

Place of Publication:

Cambridge, MA : Gulf Professional Publishing, an imprint of Elsevier, [2019]

Summary:

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

Contents:

Front Cover

Dynamic Description Technology of Fractured Vuggy Carbonate Gas Reservoirs

Copyright

Contents

About the Author

Acknowledgment

Introduction

Chapter 1: Typical characteristics of fractured vuggy carbonate gas reservoirs

1.1. Typical characteristics of gas reservoir geology

1.1.1. Geological setting

1.1.1.1. Disappearance of primary pores in ancient marine carbonate reservoirs-A long process from deposition to diagenesis

1.1.1.2. Development of various fractures created due to multiphase tectonic movements

1.1.1.3. Development of diverse karsts formed due to multiphase tectonic movements

1.1.1.4. Distribution of fractured vuggy reservoirs induced by faults, fractures, and karsts

1.1.2. Geological characteristics

1.1.2.1. Types of accumulation space and the complex and diverse reasons for their formations

1.1.2.1.1. Caves

1.1.2.1.2. Vugs

1.1.2.1.3. Fractures

1.1.2.2. Propagation of caves, vugs, and fractures

1.1.2.2.1. Caves

1.1.2.2.2. Vugs

1.1.2.2.3. Fractures

1.1.2.3. Types of reservoirs by accumulation space

1.1.2.3.1. Cave reservoirs

1.1.2.3.2. Vuggy reservoirs

1.1.2.3.3. Fractured-vuggy reservoirs

1.1.2.3.4. Fractured reservoirs

1.1.2.4. Strong heterogeneity of reservoirs with complex and diverse inner-structures

1.2. Typical characteristics of gas reservoir development

1.2.1. Complex flow mechanism

1.2.2. Large difference in productivity between wells

1.2.3. Less regularity of production performance

1.2.3.1. Highly variable pressure with fluctuations

1.2.3.2. Highly variable fluid properties throughout the development phase

1.2.4. Challenges in gas reservoir description

1.2.4.1. Increasing precision in reservoir description

1.2.4.2. Increasing accuracy in reserves estimation.

1.2.4.3. Increasing accuracy in performance forecasting

1.2.4.4. Designing strategies for gas reservoir dynamic description

1.3. Summary

Chapter 2: Introduction to the dynamic description technique of gas reservoirs

2.1. Dynamic description technique of gas reservoirs

2.1.1. Status and role

2.1.2. Methodology

2.1.2.1. Wellbore node analysis

2.1.2.2. Production logging analysis

2.1.2.3. Wireline formation test (WFT)

2.1.2.4. Well test analysis

2.1.2.4.1. Types of well test

2.1.2.4.2. Purpose of well test

2.1.2.4.3. Forward and inverse problems

2.1.2.4.4. Well test analysis methods

2.1.2.5. Production data analysis

2.1.2.5.1. Advanced production decline analysis methods

2.1.2.5.2. Similarities and differences between advanced production decline analysis and modern well test analysis

2.1.2.6. History matching analysis

2.1.3. Single well dynamic description

2.1.4. Gas reservoir dynamic description

2.2. Dynamic monitoring of gas reservoir development

2.2.1. Significance and role

2.2.2. Contents and methodology

2.2.2.1. Principles

2.2.2.2. Purpose and contents

2.2.2.3. Methodology

2.2.2.3.1. Production data monitoring

2.2.2.3.2. Well testing data monitoring

2.2.2.3.3. Gradient monitoring

2.2.2.3.4. Fluid sample monitoring

2.2.2.3.5. Production logging data monitoring

2.2.2.3.6. Connectivity monitoring

2.2.2.3.7. Selection of monitoring technique

2.3. Summary

Chapter 3: Well test analysis methods of fractured vuggy carbonate gas reservoirs

3.1. Challenges in well test analysis

3.1.1. Diversity of well test curve

3.1.1.1. Reservoir models

3.1.1.1.1. Pseudo-homogeneous model

3.1.1.1.2. Dual-porosity model

3.1.1.1.3. Fractured model

3.1.1.1.4. Fractured-vuggy model

3.1.1.1.5. Composite model.

3.1.1.2. Well test characteristics of a fractured-vuggy carbonate gas reservoir

3.1.2. Ambiguity of interpretation results

3.1.3. Complexity of the well test model

3.2. Well test analysis method

3.2.1. Progress of tri-porosity well test

3.2.1.1. Physical model

3.2.1.1.1. Fracture+dual-matrix model

3.2.1.1.2. Matrix+dual-fracture model

3.2.1.1.3. Triple-continuum model

3.2.1.2. Well test model

3.2.1.3. Well test type curve

3.2.2. The multiwell well test analysis method

3.2.2.1. The multiwell system in infinite homogeneous reservoirs

3.2.2.1.1. The well test model

3.2.2.1.2. Model solving

3.2.2.1.3. Pressure drawdown (PDD) type curves in the case of multiwell simultaneous production

3.2.2.1.4. Pressure buildup (PBU) type curves in the case of multiwell simultaneous shut-ins

3.2.2.1.5. PBU type curves in the case of offset wells in production

3.2.2.2. Multiwell system in infinite dual-porosity reservoirs

3.2.2.2.1. Long-term asymptotic solutions in the case of multiwell simultaneous production

3.2.2.2.2. PDD type curves in the case of multiwell simultaneous production

3.2.2.3. Simulation example

3.2.2.3.1. Basic data

3.2.2.3.2. Well test analysis

3.2.2.4. A field example

3.2.2.4.1. A gas reservoir survey

3.2.2.4.2. Production history

3.2.2.4.3. Well test

3.2.2.4.4. Data analysis

3.2.2.4.5. Comparison with previous tests

3.2.2.5. Discussion and conclusion

3.2.3. The three-dimensional numerical well test analysis method

3.2.3.1. Overview of the numerical well test

3.2.3.2. The three-dimensional numerical well test

3.2.3.2.1. Seismic inversion-derived attributes

3.2.3.2.2. Building of the three-dimensional model

3.2.3.2.3. Simulation example

3.2.3.3. Discussion and conclusion

3.2.4. Lifecycle well test analysis method.

3.2.4.1. Analysis process

3.2.4.1.1. Test data evaluation

3.2.4.1.2. Bottom hole flowing pressure conversion

3.2.4.1.3. Analytical well test analysis

3.2.4.1.4. Numerical well test analysis

3.2.4.1.5. Performance forecasting

3.2.4.2. Field example

3.2.4.3. Superiority of lifecycle well test analysis

3.2.4.3.1. Understanding the reservoir characteristics

3.2.4.3.2. Identifying wellbore and formation reflections

3.2.4.3.3. Reduce the ambiguity of reservoir evaluation

3.2.4.3.4. Scientific performance forecasting

3.3. Application of the well test analysis

3.3.1. Reservoir performance model

3.3.2. Reservoir performance evaluation

3.3.2.1. Cave reservoir

3.3.2.2. Fractured-vuggy reservoir

3.3.2.3. The vuggy reservoir

3.3.2.4. Comprehensive evaluation

3.3.3. Evaluation of flow patterns

3.3.4. Reserves estimation

3.3.5. Deliverability evaluation

3.4. Summary

Chapter 4: Reserves estimation methods of fractured vuggy carbonate gas reservoirs

4.1. Performance-based reserves estimation

4.1.1. Definition of performance-based reserves

4.1.2. Estimation methods of performance-based reserves

4.1.2.1. Material balance method

4.1.2.1.1. Material balance analysis of constant-volume gas reservoir

4.1.2.1.2. Material balance analysis of water-drive gas reservoirs

4.1.2.1.3. Material balance analysis of ultra-high pressure gas reservoirs

Apparent reservoir pressure correction method

Linear regression method

Analytical method

4.1.2.1.4. Material balance analysis of condensate gas reservoirs

4.1.2.2. Elastic two-phase method

4.1.2.3. Lifecycle well test method

4.1.2.4. Advanced production decline analysis method

4.1.2.4.1. Fetkovich method

4.1.2.4.2. Blasingame method

4.1.2.4.3. Agarwal-Gardner method

4.1.2.4.4. NPI method.

4.1.2.5. Flowing material balance (FMB) method

4.1.2.5.1. Mattar method

4.1.2.5.2. Agarwal-Gardner (A-G) method

4.1.3. Performance-based reserves (OGIP) estimation of fractured-vuggy carbonate gas reservoir

4.1.3.1. Selection of estimation methods

4.1.3.1.1. Adaptability of estimation methods

4.1.3.1.2. Selection of optimal estimation methods

Method based on lifecycle well test

Method based on advanced production decline analysis

4.1.3.2. Advanced production decline analysis method

4.1.3.2.1. Basic data

Data preparation

Data diagnosis

Model diagnosis

4.1.3.2.2. Analysis procedure

4.1.3.2.3. Field examples

Gas well

Oil well

Deconvolution analysis

4.1.3.2.4. Sensitivity analysis

Basic parameters

PVT

4.1.3.2.5. Influencing factors

4.1.3.2.5.1. Converted BHFP

Production time

4.1.3.2.6. Well interference

4.1.3.2.7. Discussion

Mathematical model

Theoretical analysis

Field example

Conclusion

4.1.4. Application of reserves estimation results

4.1.4.1. Performance-based reserves or OGIP estimation

4.1.4.2. Multiple reservoirs evaluation

4.1.4.3. Early warning of water breakthrough

4.1.4.4. Estimation of production pressure drawdown

4.1.4.5. Estimation of new well reserves

4.2. Recoverable reserves estimation

4.2.1. Recoverable reserves (or ultimate recovery) estimation of single well

4.2.2. Relationship between initial flow rate and recoverable reserves

4.3. Producing reserves estimation

4.3.1. Analysis procedure

4.3.2. Reserves abundance

4.3.2.1. Reserves abundance based on WTA

4.3.2.2. Reserves abundance based on RTA

4.3.3. Producing reserves estimation

4.4. Summary

Chapter 5: Performance forecasting method of fractured vuggy carbonate gas reservoir

5.1. Overview of performance forecasting methods.

5.2. Performance forecasting method of single wells.

Notes:

Includes index.

Description based on print version record.

ISBN:

9780128183250

012818325X

9780128183243

0128183241