What Volume 5 Actually Covers
Volume 5 of the Petroleum Engineering Handbook focuses on reservoir engineering fundamentals. It deals with material balance, decline curve analysis, pressure transient testing, and reservoir simulation basics. The chapters are written by practicing engineers, not academics, which makes a noticeable difference in how the material reads. Official copies are available through the Society of Petroleum Engineers bookstore or SPE Members' portal. The PDF version runs roughly 600 pages. You can also find it through university library subscriptions. I've used both routes over the years. The SPE portal gives you cleaner formatting and searchable text, while the library PDF sometimes has slightly crumpled page scans depending on which branch you pull from. Most people buy it, put it on their shelf, and never open it again. That's a waste. The material balance chapter alone is worth the purchase if you know how to navigate it. Don't read it cover to cover. Go straight to the section you need when you need it.
The material balance equation section uses the generalized form with water influx and gas cap terms. The worked examples assume steady-state aquifer support unless stated otherwise. When I was running material balance cases for a tight gas development in the Permian basin, the textbook example for a water-drive reservoir threw me off because it didn't account for the strong edge-water drive we were dealing with. I had to cross-reference the Fetkovich method in the pressure transient chapter to adjust my fit. The book doesn't explicitly cover that edge case in the material balance section. That's the limitation you need to know about upfront. The decline curve analysis chapter covers Arps equations thoroughly. Hyperbolic, exponential, and harmonic. It shows you how to drawtype the curves and how to fit the parameters. The pitfall here is that most junior engineers treat the b-value as a free parameter they can tweak until the curve looks pretty. It's not. You need to understand what the geological controls are first. A b-value of 1.5 on a shale reservoir usually means something is wrong with your analysis, not that the reservoir behaves that way. The book implies this but doesn't hammer it hard enough.
What the Book Gets Wrong or Skimps On
Volume 5 assumes you already know basic fluid properties and well completion design. If you're new to the field, those foundational gaps will show up quickly. The simulation chapter touches on grid design and boundary conditions but doesn't go deep into upscaling or upgridding techniques. You'll need supplementary material for that. The numerical examples are all set in Imperial units. If you work in SI or metric daily, you'll spend extra time converting everything. I keep a conversion table on my desk next to the book at this point. It's faster than rewriting each equation. One more thing. The second edition is the standard reference. The first edition has some outdated relative permeability correlations that haven't been validated against modern core data. Make sure you're working from the correct version. I've seen people cite first-edition data in reports and get called out for it.
Get the Full Details
If you're looking for something that covers unconventional reservoirs in depth, this volume won't help you much. The 2008 publication date shows. It predates the shale boom's maturity. Use it for conventional reservoir analysis and pair it with more recent SPE papers for unconventional methods. The book costs around $150 for the PDF from SPE. A few of the chapters are reprinted in other books at similar prices, but the material balance and pressure transient sections together are harder to find in a single source outside this volume. I keep it on my work computer and reference it weekly. It sits in my frequent-use folder alongside my own notes, not on a shelf collecting dust.
