API 6A and API 6D both cover valves used in oil and gas service, and it’s a common point of confusion which one applies to a given piece of equipment. The short version: it comes down to where the valve sits. API 6A governs wellhead and tree equipment; API 6D governs pipeline valves. Same broad
API 6A vs. API 6D: What’s the Difference Between Wellhead and Pipeline Valve Standards? Read More »
A choke and kill manifold looks like a dense cluster of valves, chokes, and pipe spools, and sizing one properly means working through several interlocking decisions at once — pressure rating, choke sizing, redundancy, and line routing — each of which constrains the others. Here’s what actually goes into that. Start with the pressure rating
Choke and Kill Manifold Design: What Actually Goes Into Sizing One Read More »
Wellhead equipment often outlives the paperwork that qualified it. A stack installed fifteen or twenty years ago can still be structurally sound while the code edition it was designed to, the field’s production plan, or the equipment’s own service history have all moved on since. The question isn’t whether the equipment still works — it’s
When Does Legacy Wellhead Equipment Need Design Re-Qualification? Read More »
A subsea tree does the same fundamental job as a surface tree — controlling flow from the wellbore — but almost everything about how it’s designed to do that job is different, driven by one basic constraint: nobody can walk out and manually operate it. That single difference cascades into how it’s actuated, monitored, sealed,
Subsea Tree vs. Surface Tree: Key Design Differences Engineers Should Know Read More »
A lot of equipment in service today only exists as 2D drawings — some scanned from paper originals, some in a CAD format the original software can no longer open. It still works, and the drawings still technically describe it. So it’s a fair question why you’d spend money turning that into a parametric 3D
2D to 3D: Why Convert Legacy Drawings to Parametric CAD Models? Read More »
A dimension with a plus/minus tolerance tells you how big a feature is allowed to be. It doesn’t tell you where that feature is allowed to sit relative to everything else on the part, or how far it’s allowed to tilt, or how round a supposedly round bore actually has to be. That’s the gap
GD&T Basics for Oil & Gas Equipment Drawings: What Reviewers Actually Check Read More »
AR/VR training gets pitched with a lot of enthusiasm and not much specificity about what it’s actually good for. It’s worth separating the genuine advantage from the novelty, because the honest answer is: it depends heavily on what you’re training for, and for the wrong use case it’s an expensive way to reproduce a manual
AR/VR for Operator Training: Does It Actually Reduce Incidents? Read More »