If you manufacture, specify, or operate portable offshore units — and that includes mud service modules, workshop containers, instrumentation cabins, and pressurised work pods — and they are certified under DNV 2.7-1, you need to read this. DNV 2.7-1 and DNV 2.7-3 are not the same standard applied at different …
This article is a structured walkthrough of DNV-ST-E271 (DNV 2.7-1) requirements, organised the way a designer or certification engineer actually works through them — from initial structural design through to the identification plate. Each section maps to a checklist you can use during design, procurement, and fabrication. It is not …
If you manufacture, procure, or operate mud skips and chemical tanks for offshore drilling, you have almost certainly encountered the DNV 2.7-1 vs DNV 2.7-3 question. The two standards are frequently conflated — and the consequences of specifying the wrong one range from project rejection to a voided certificate before …
If you’ve been Googling “what is a DNV container,” you probably already know it’s something to do with offshore operations — and that it matters for safety, certification, and getting equipment accepted on offshore installations. This guide starts from the beginning and builds from there. First: what is an offshore …
If you’ve landed here, you’ve probably already spent time trying to untangle what should be a simple answer: which offshore container standard do I actually need? The confusion is understandable — all three standards address the same fundamental problem, but they come from different origins, serve different functions, and are …
If you’ve typed “DNV 2.7-1 vs 2.7-2 vs 2.7-3” into a search bar, you’re not alone. These three standards are routinely confused — even by experienced procurement teams. This guide explains each one plainly, shows how they differ, and gives you a concrete decision tree to identify which standard governs …
Most offshore container manufacturers are still producing their DNV 2.7-1 certification calculations in Excel. The spreadsheet might be well-built — with formulas locked, units clearly labeled, and a senior engineer reviewing the printout before submission. But it still arrives at the surveyor’s desk as a spreadsheet PDF, often with cross-sheet …
The August 2017 edition of DNVGL-ST-E271 replaced the previous DNV 2.7-1 standard, consolidating the offshore container requirements into a single DNV GL standard document and introducing a number of changes that designers and manufacturers need to be aware of. This post explains what changed, what stayed the same, and what …
When a manufacturer sets out to certify an offshore container, the question surfaces almost immediately: do I certify against DNV 2.7-1 or EN 12079? The short answer is that for most practical purposes, you are certifying against the same technical requirements. But the longer answer involves different standards bodies, slightly …
Offshore containers do not last forever — or rather, their certification does not. Every offshore container that operates in regulated environments needs periodic recertification to confirm that the structure remains fit for purpose, the lifting sets are within their service life, and the corrosion protection is still effective. This post …
Choosing the wrong material for an offshore container — or the right material with the wrong properties — is one of the most common reasons certification fails at first review. The problem is rarely a fundamental misstep; it is usually a missing check, an undocumented assumption, or a detail that …
Every offshore container that moves on an offshore installation or vessel must survive three distinct mechanical environments — each one governed by a specific load case in DNVGL-ST-E271. Get any one of them wrong and the certification fails, or worse: the container fails in service. This post walks through all …
