Oil Well Completions Concepts and Calculations Part 1
Oil Well Completions Concepts and Calculations Part 1
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What enrolled engineers say
The way the abstractions get unpacked made it easier to map equations to what shows up in oilgas field data, and it’s easier to reason about than I expected. The worked example in Section 2.4 backing RPS out from perforation diameter and skin stuck with me, especially the psi/ft conversion step that people usually hand-wave. I’ve already mirrored that calc in a scratch repo and sanity-checked it against a small PR at work; it fits our completions arch, and I don’t feel lost jumping between notes and prod. wished there was more on nodal edge cases during frac hits, but it’s sharpened my sense of where abstractions tend to leak.
Found this while auditing obs gaps tied to our oilgas work, and the first gripe: module 3’s pacing felt uneven, with the spreadsheet setup assumed and not shown. Past that, it clicked fast. The section on perforation friction calculations stuck, especially the worked example where RPS is varied and you see skin swing in the table. That translated cleanly when I sanity-checked numbers in our repo for a completions study. I liked how the arch tradeoffs between tubing ID and frac stages were framed without fluff. It doesn’t try to be infra-heavy, but the math maps to prod decisions I see in PRs. I’ve already reused the casing burst check logic during review time, so this felt like a good use of PD hours.
The framing around testability went deeper than expected, especially when it tied completion choices back to how you actually verify behavior later. The section on pressure test envelopes, where the instructor walks through a tubing/casing pressure calc and then sanity-checks it against field limits, stuck with me; it felt like reading an arch decision memo rather than a slide deck. As someone bouncing between legacy oilgas work and modern infra, I kept mapping it to prod guardrails, CI checks, and the stuff that keeps RPS spikes from surprising you. There's a practical throughline about keeping assumptions consistent across steps, not just getting the math right—helpful if you’ve ever debugged a mismatch between a spreadsheet and what obs says. I wasn't sold on the pace of the cementing overview; wished there was a bit more on failure modes before moving on. Still, the way it weighs consistency tradeoffs across completion options is the part I’ll probably reuse.
Your instructor
Team OG
Oil & Gas Domain
Upstream Oil & Gas Technical Professional
Is this course for you?
You should take this if
- You work in Oil & Gas Upstream
- You're a Petroleum Technology professional
- You have some foundational knowledge in the subject
- You prefer self-paced learning you can revisit
You should skip if
- You're looking for an introductory overview course
- You need a different specialisation outside Petroleum Technology
- You need live interaction with an instructor
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The course is readily available, allowing learners to start and complete it at their own pace.
- Oil Well Completions26 min
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What learners say about this course
Came away with a cleaner mental map of how lift options fit together, which helps when aligning subsurface choices with surface arch and infra constraints. The beginner framing works for cross-functional leads; I could map ESPs, gas lift, and rod pumps to prod phases without getting lost. The ESP sizing walkthrough in the mid-course section, using the 1,500 bpd example and flagging how free gas skews the curve, stuck because it mirrors the kind of back-of-napkin check we do before a PR. Wasn't sold on the skim coverage of failure diagnostics; a bit more on dynacards and basic obs would help when talking to ops. As a TeamLead, it's useful for setting expectations with juniors and vendors, especially around cost tradeoffs vs uptime in prod. I don't think it's magic anymore, just mechanics I can reason about under the hood.
The scenarios felt close to real ops, less museum tour and more “what breaks at 2am,” which kept me engaged. Chapter 4’s Spindletop blowout walkthrough stuck: pressure assumptions, bad comms, and how a single valve choice cascaded, mapped cleanly to how prod incidents spiral when arch and infra aren’t aligned. As a bootcamp grad, I liked the framing that treats wells like systems with RPS limits and failure modes; the sidebar comparing early field logs to modern obs made the history click. It wasn’t perfect; I wasn’t sold on the brief detour into contract law, and I wished there was a bit more on offshore safety metrics tied to CI-style checklists. still, the cross-links to pipeline corrosion at Prudhoe Bay and the “postmortem” format felt like reading a PR review after an outage—one em-dash moment where history meets ops. I’ve been carrying that mindset back into how I poke at system-level issues without jumping straight to fixes.
Needed something that would survive a PR-style teardown, not a glossy survey. The Spindletop 1901 blowout section stuck with me, especially the step-by-step on pressure control gaps and how rotary drilling changed the arch of oilgas ops. It bridges legacy field practices to modern infra thinking; reads like a tidy repo where prod incidents inform CI checks and obs. mostly good, though I wasn't sold on the light treatment of offshore safety after Macondo, but it’s already nudged how I reason about risk when shipping changes.
Refreshing to see the why behind the how, not just timelines and dates. As a grad entrant, I kept mapping the oilgas history back to stuff we argue about in arch reviews; the Chapter 3 bit on Spindletop, especially the minute where they pause on why rotary drilling beat cable tools, stuck with me. That moment clicked with how infra choices in prod get locked in early, kind of like a repo decision that haunts CI later. The section on seismic reflection in the 1920s was another anchor, with that field note screenshot showing noisy traces and early obs limits. I wasn't sold on how briefly decline curves were treated; a quick contrast to modern RPS forecasting would've helped. still, the throughline from exploration risk to ops habits landed. It's changed how I frame technical debt chats at work, less abstract, more grounded in how constraints accrete over time.
Aug 29, 2026 
