Gas Reservoir Engineering

School of Petroleum and Geological Engineering, The University of Oklahoma, 2000. — 604 pages.This book presents methods for estimating reservoir fluid properties required for gas reservoir-engineering calculations; focuses on estimating original gas in place, gas reserves, and recovery factors for a variety of reservoir drive mechanisms; discusses the implementation and analysis of the four most common types of gas-well deliverability tests: flow-after-flow, single-point, isochronal, and modified isochronal tests.The book discusses volumetric methods, including data requirements, calculation techniques, and limitations of the methods.
The theory and practical applications of pressure-transient testing in gas wells are presented.Contents
Introduction
Physical Properties of Gas
PVT Diagram
Equations Of State Or Gas Laws
Gas Deviation Factor Z
Correlations Of Z For Computer Programming
Pseudocritical Properties For Gas Condensate and Wet Gas
Compressibility Of Gas
Viscosity Of Gases
Formation Volume Factor
Specific Gravity Of Gas And Gas Condensate Reservoirs
Vapor Pressure
Fluid Sampling Techniques
Additional Examples
Gas Resevers and Material-Balance Calculations
Volumetric methods
Volumetric reservoirs
Material balance method
Numerical applications
Pressure Transient Testing of Gas Wells
Types And Purposes Of Pressure Transient Tests
Homogeneous Reservoir Model
Complications In Actual Tests
Fundamentals Of Pressure-Transient Testing
Non-Darcy Flow
Analysis Of Gas-Well Flow Tests
Analysis Of Gas Well - Buildup Tests
Gas Well Test Analysis Using Pressure and Pressure Derivative
Numerical Applications
Deliverability Testing of Gas Wells
Types And Purposes Of Deliverability Tests
Theory of deliverability test analysis
Stabilization time
Analysis od deliverability tests
Numerical applications