Overview of Downhole Tubulars - Oil and Gas Wells
Overview of Downhole Tubulars - Oil and Gas Wells
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What enrolled engineers say
The jump from junior framing to senior tradeoffs shows up fast here; it's explicit without being preachy. In the Tubular Design Walkthrough, the collapse vs burst example using a 7‑in casing at ~9k ft stuck, especially the safety factor callouts. I liked how failure modes tie back to arch and ops, though I wasn't sold on the brief nod to obs and wished for more on closing the loop with field data. By the end I've got notes translating this into our infra repo—naming, PR checks, and a CI gate I'd add.
Needed a clearer mental model of what’s actually inside the hole, and this filled gaps without marketing fluff. The section on casing vs tubing around the burst/collapse calc with API J55/N80 table stuck, plus the animation at 22:10. It mapped components like an arch diagram; think prod failures traced via obs, not k8s—mostly worked, though I wished for more on workover edge cases. it's answered questions I've been parking for a year while skimming well reports and PRs in the repo.
Dense material without the fluff; it moves fast but stays readable. The Module 3 casing vs tubing section, especially the burst/collapse walk-through using API 5CT grades, stuck with me because it mirrors spec reviews I see before prod changes. I've already used that framing to sanity-check a client’s arch decisions on connections and weights, which saved a back-and-forth. Wasn't sold on the brief metallurgy pass; wished there was more on sour service failures and photos.
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 / Mechanical Engineering professional
- You have some foundational knowledge in the subject
- You prefer live, instructor-led training with Q&A
You should skip if
- You're looking for an introductory overview course
- You need a different specialisation outside Petroleum Technology
- You need fully self-paced, on-demand content
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What learners say about this course
This course nudged how I think about legacy choices, kind of like refactoring old arch without breaking prod. It frames sand control as tradeoffs instead of rules, which clicked for me coming from software and infra, especially when you’re juggling constraints that look a lot like CI gates and RPS limits. The micro-detail that stuck was the screen sizing example in the “Gravel Pack vs Frac Pack” section, where they walk through median grain size and then show how one assumption cascades into cost and ops risk—felt like reading a PR where one default sneaks into prod. I wasn’t sold on every analogy to modern completions; the k8s-style modularity pitch was mostly helpful but a bit hand-wavy in spots. Still, the beginner pacing worked, and the oilgas context mapped cleanly to how we think about legacy systems in energyutilities. I’ve already got a note to tweak some of our internal logic after this, mostly around how we document assumptions before they fossilize in the repo.
The course laid out a workable path through a messy topic, which helped me map fundamentals without getting lost. The Chapter 4 pipeline pressure drop example using Darcy-Weisbach and a step-by-step calc stuck, especially the unit checks. I kept mapping it to infra in prod, thinking about constraints, safety margins, and obs, so it clicked faster; it's beginner-friendly but not dumbed down. Wasn't sold on the short k8s-style control analogy in the ops section, and I wished there was more on gas processing impacts for energyutilities, but I've already applied bits in a repo note for the team.
The section headers pulled me in, and the content mostly delivered. Chapter 3’s pipeline hydraulics example, walking a pressure drop calc end to end, stuck; it clicked like budgeting RPS before a prod push, and the compressor station tradeoffs read like arch notes you’d leave on a PR. it's beginner-friendly without talking down, though I wasn't sold on how light the infra/obs tie-in was for energyutilities oilgas ops. I’ve already avoided a couple late CI-style scrambles that would've felt like debugging at 2am.
Module 4 on compressor sizing dragged a bit and repeated formulas I’d already seen. After that, it reads like field notes from someone who’s been through a few turnarounds. The section on dehydration stuck with me, especially the worked example comparing TEG vs molecular sieves and the callout on hydrate risk during cold starts. As a TeamLead, I care about team lift and cost, and this helps juniors reason about arch tradeoffs without overspending on infra. I’ve already pointed a new hire to the chapter on gathering systems and pressure drop; the RPS-style thinking maps well to ops. it’s nudged how I frame system-level troubleshooting during handoffs, with better obs questions before jumping to fixes.
Oct 2, 2026 
