Knowledge Base

Engineering Technical Articles

Practical guides and technical references on API 650 tank design, FEA/CFD analysis, CAD drawing types, engineering documentation and EPC support — written by SLETEC's engineering team.

Tank Engineering7 min read

What is API 650 Tank Engineering? A Complete Guide

A detailed walkthrough of API 650 scope, design checks (shell, roof, bottom, nozzles, wind, seismic), fabrication support and typical deliverables for atmospheric storage tanks.

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CAD & Drawings6 min read

GA Drawing vs Fabrication Drawing — What's the Difference?

Understand the purpose, contents and use of General Arrangement drawings versus fabrication/shop drawings in oil & gas engineering projects.

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FEA & Analysis7 min read

What is FEA Analysis in Structural & Mechanical Engineering?

Explains FEA methodology, types (static, dynamic, thermal, non-linear), software (ANSYS, Abaqus, SolidWorks Simulation) and real-world applications in pressure vessels and structures.

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CFD & Flow Analysis6 min read

What is CFD Simulation for Industrial Equipment?

Covers CFD methodology and its applications in heat exchangers, silos, HVAC systems, separator vessels and flow assurance for industrial facilities.

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Engineering Documentation6 min read

What is MTO, BOQ and BOM? Key Differences Explained

Clarifies the definitions, preparation methods and project roles of Material Take-Off (MTO), Bill of Quantities (BOQ) and Bill of Materials (BOM) in EPC projects.

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Engineering Documentation6 min read

What is NMR and MDR Documentation in Oil & Gas Projects?

Explains Non-conformance/Material Receiving Reports (NMR) and Material Data Records (MDR), their role in construction handover and how they are structured.

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Reverse Engineering7 min read

Reverse Engineering for Existing Plant Equipment — How It Works

A step-by-step look at the reverse engineering process: field measurement, 3D scanning, drawing production, material identification and verification for brownfield projects.

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As-Built & Documentation6 min read

As-Built Drawing Preparation for Brownfield Projects — A Practical Guide

Covers what as-built drawings are, the redline-to-CAD conversion process, quality checks and handover documentation requirements for brownfield facilities.

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EPC Engineering7 min read

How EPC Contractors Can Use Remote Engineering Support in Saudi Arabia

How EPC contractors in Saudi Arabia and GCC can leverage remote engineering support for document control, design, analysis and deliverable production.

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Tank Engineering6 min read

Tank Repair Engineering & Method Statement Support — What to Include

Explains tank repair engineering scope, method statement structure, isolation plans, repair procedures, NDT requirements and API 653 references.

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