Recent advances in practical applied well test analysis / Freddy Humberto Escobar.

Format:

Book

Author/Creator:

Humberto Escobar, Freddy, author.

Series:

Petroleum Science and Technology

Language:

English

Subjects (All):

Oil wells--Testing.

Oil wells.

Physical Description:

1 online resource (440 p.)

Place of Publication:

New York : Nova Publishers, 2015.

Language Note:

English

Summary:

Well testing is a valuable and economical tool in the oil and gas industry. Thanks to the advances in mathematical modeling, measurement devices and computer capabilities, well testing continues to be a growing subject. The information obtained from well testing is analyzed with the purpose of obtaining important reservoir information useful for hydrocarbon field management. The intricate mathematical models developed from numerous researchers during past and recent years attempt to show the benefit of mathematics in well test interpretation. This book revolves around the TDS technique. This revolutionary method is strongly based in the logarithm pressure derivative versus time log-log plot. It is applied to specific regions, features and flow regimes, which can be easily identified in the pressure derivative curve so several analytical expressions are obtained for a practical, easy and exact way of conducting a well test interpretation. This tool is too powerful and also allows verifying most of the estimated parameters. All the known commercial software include it without referring to it as the original name. During several years of providing training to several engineers and companies in Latin America, the author has noticed that whoever knows and uses the TDS technique will take it as its favorite interpretation method. Then, they take the outcomes from TDS to computer software to set the bounds for a faster and less risky model. The book contains the latest applications of the TDS technique to several important reservoir/fluid scenarios. Several step-by-step examples are given for a better understanding of the interpretation methodology in such important scenarios as heavy oil, conductive faults, enhanced oil recovery, fractured wells and naturally fractured reservoirs, among others.

Contents:

RECENT ADVANCES IN PRACTICAL APPLIED WELL TEST ANALYSIS ; RECENT ADVANCES IN PRACTICAL APPLIED WELL TEST ANALYSIS ; Library of Congress Cataloging-in-Publication Data; CONTENTS ; ACKNOWLEDGMENTS ; FOREWORD ; INTRODUCTION ; PART ONE: HOMOGENEOUS AND HETEROGENEOUS RESERVOIRS ; Chapter 1 FUNDAMENTALS OF TRANSIENT PRESSURE ANALYSIS IN HOMOGENEOUS RESERVOIRS ; INFINITE BEHAVIOR ; CLOSED-BOUNDARY SYSTEMS ; TDS TECHNIQUE FOR INFINITE AND CLOSED-BOUNDARY SYSTEMS ; Example 1.1; Solution by Conventional Analysis ; Solution by TDS technique The following information was obtained from Figure 1.2:

CONSTANT-PRESSURE BOUNDARIES LONG AND NARROW SYSTEMS-TDS TECHNIQUE ; LONG AND NARROW SYSTEMS-CONVENTIONAL ANALYSIS ; Example 1.2 ; Solution by conventional analysis ; Solution by TDS Technique ; INFINITE BEHAVIOR-GAS RESERVOIRS- CONVENTIONAL ANALYSIS ; CLOSED GAS RESERVOIRS-CONVENTIONAL ANALYSIS ; INFINITE BEHAVIOR-GAS RESERVOIRS-TDS TECHNIQUE; CLOSED AND CONSTANT-PRESSURE BOUNDARY GAS RESERVOIRS-TDS TECHNIQUE; LONG AND NARROW GAS SYSTEMS- CONVENTIONAL ANALYSIS; LONG AND NARROW GAS SYSTEMS-TDS TECHNIQUE ; Nomenclature ; Greek ; Suffixes ; REFERENCES

Chapter 2 DOUBLE-POROSITY, SINGLE-PERMEABILITY RESERVOIRS BACKGROUND; CONVENTIONAL ANALYSIS ; TDS TECHNIQUE ; Example 2.1 ; Solution by Conventional Analysis ; Solution by TDS Technique ; Estimation of Fracture Permeability ; Estimation of Fracture Porosity ; Estimation of Fracture Width ; AVERAGE RESERVOIR PRESSURE ; Example 2.2 ; Solution ; Nomenclature ; Greek ; Suffixes ; REFERENCES ; Chapter 3 TRANSITION PERIOD OFF FROM RADIAL FLOW REGIME ; BACKGROUND; TRANSITION PERIOD OCCURS BEFORE RADIAL FLOW REGIME-CONVENTIONAL ANALYSIS

TRANSITION PERIOD OCCURS BEFORE RADIAL FLOW REGIME-TDS TECHNIQUEBilinear Flow Regime ; Biradial Flow Regime ; Linear Flow Regime ; Naturally Fractured Reservoir Parameters ; Example 3.1; Solution by Conventional Analysis ; Solution by TDS Technique ; Example 3.2 ; Solution by Conventional Analysis ; Solution by TDS Technique; TRANSITION PERIOD OCCURS AFTER RADIAL FLOW REGIME-CONVENTIONAL ANALYSIS ; TRANSITION PERIOD OCCURS AFTER RADIAL FLOW REGIME- TDS TECHNIQUE ; Example 3.3 ; Solution by Conventional Analysis ; Solution by TDS Technique ; GAS FLOW ; Nomenclature ; Greek ; Suffixes

REFERENCES Chapter 4 DOUBLE-POROSITY AND DOUBLE-PERMEABILITY RESERVOIRS ; BACKGROUND; MATHEMATICAL FORMULATION ; TDS METHODOLOGY ; INFLUENCE OF WELLBORE STORAGE ; Example 4.1 ; Solution ; Nomenclature ; Greek ; Suffixes ; REFERENCES ; Chapter 5 TRIPLE-POROSITY. SINGLE-PERMEABILITY RESERVOIRS ; BACKGROUND ; MATHEMATICAL MODELING ; PARAMETERS DETERMINATION ; Matrix-Fracture Interporosity Flow Parameter, mf ; Matrix-Vugs Interporosity Flow Parameter, mv ; Vugs-Fractures Interporosity Flow Parameter, vf ; Dimensionless Fracture Storativity Coefficient, f ; Example 5.1 ; Solution

Nomenclature

Notes:

Description based upon print version of record.

Includes bibliographical references at the end of each chapters and index.

Description based on print version record.

ISBN:

1-63483-702-9