Introduction to Commissioning and Startup

Name: Introduction to Commissioning and Startup
Rating: 4.4 (49 reviews)

Startup strategies for Refinery and Process Plants

Created byCHS Engineering Academy

Last updated 12/2025

English

English [Auto],

What you'll learn

Understand the commissioning and startup process
Differentiate between pre-commissioning, commissioning, and startup
Apply best practices for mechanical completion and system handover
Identify and mitigate risks during startup

Course content

4 sections • 20 lectures • 1h 0m total length

Introduction3:16
Learn the key phases of commissioning and systems completion, from planning and brownfield interfaces to safe turnover. Master mechanical completion, walk downs, inspections, and pre-startup safety to reach first oil.
What is System Completion?1:35
Define systems completion as the completions process that verifies fabrication, installation, testing, and integration of a processing facility to meet drawings, specifications, and safety norms for start up and operation.
5 key stages of System completions2:24
Learn the five phases of system completions—from planning and strategy to execution—covering construction and mechanical completion, pre-commissioning with static tests, commissioning with dynamic tests, startup, safety, hse, and process safety.
Prioritization of systems and sub systems3:43
Prioritize power utilities and flare systems, then supporting utilities, instrument air, steam, nitrogen, and power, and plan a detailed commissioning sequence to safely start the processing plant.
Stick-Built vs. Modular Construction2:32
Assess stick-built versus modular construction for projects, from on-site assembly to pre-assembled modules in Arctic conditions. Improve outcomes with modular construction, delivering faster schedules, safer conditions, and better logistics.
Planning4:47
Develop commissioning test procedures from manufacturer manuals, conduct risk assessments, and define system boundaries and permit-to-work systems. Finalize turnover packages and certification milestones for startup readiness.
Construction1:31
Plan, design, build, and commission a gas plant for industrial operations. Carry out site preparation, excavation, and foundation work to support heavy modularized equipment, heavy haul roads, and crane availability.
Modular construction benefits1:53
Explore modular construction for refineries and gas plants, comparing factory-built modules to stick-built on-site work, and showing faster installation, improved quality, site preparation, and cost management.
How the Modular approach affects system completions?1:40
Discover how modular construction speeds commissioning by shifting system verification to fabrication yards, reducing on-site work, and focusing on precise module connections, foundations, and early punch-list management for quicker handover.
How does modular construction affect punch list management?

Definition of Mechanical Completion0:52
Define mechanical completion as the rigorous verification that all equipment, piping, electrical systems, instruments, and utilities are installed and tested according to project specifications, signaling readiness for pre-commissioning.
Mechanical3:38
Ensure mechanical equipment is installed, aligned, tested, and preserved before startup. Perform pre-installation checks, bolt tensioning, cleanliness, hot oil flushing, alignment checks, internal inspection, dimensional control, and load testing.
Electrical4:10
Inspect visually, verify grounding, and perform insulation and continuity checks to ready the electrical system for pre-commissioning. Verify battery setup, lighting, heat tracing, and labeling of generators, transformers, and motors.
Instrumentation4:47
Examine instrumentation in a gas processing plant, including sensors and control valves, and how proper installation, testing, calibration, and EMI-safe cable separation support safe, reliable operation before pre-commissioning.
Case study4:41
Discover why X certified instrumentation matters in hazardous areas, illustrated by real case studies. Learn checks at procurement, mechanical completion, and commissioning to prevent ignition sources.
Mechanical Completion

Introduction2:17
Pre-commissioning verifies equipment and components per design drawings and specs, with discipline checks across instrumentation, electrical, and piping. It catches construction leftovers, logs gaps, and fixes issues before commissioning.
How to differentiate the pre commissioning and commissioning stage?0:56
Pre-commissioning focuses on installation, inspection, and testing of individual components and systems at a discipline level. Commissioning integrates all systems into a fully functional facility ready for startup.
Key Pre-commissioning activities2:32
Explore the key pre-commissioning activities that ensure a safe, reliable startup by inspecting instruments, switchgear, and piping; learn to install temporary commissioning equipment, plan flushing, and prepare for cleaning.
PC Activities4:56
Move from cleaning to installing orifice plates, then verify motors, align equipment, and conduct cause-and-effect, loop, and functional tests to ensure valves, switchgear, and control interfaces are ready for startup.
Performing flushing, steam and air blow2:45
Flush water lines from the main headers, air blow lines, purge nitrogen lines, dry, and document with signed, traceable records, choosing cleaning methods by fluid type.
Pre-commissioning

Requirements

This course is designed to be accessible to both beginners and experienced professionals. No prior experience in commissioning is required, but having some background in oil and gas operations, engineering, or project management will be helpful.

Description

Starting up a refinery is a critical phase in any oil and gas project.

Mistakes during this stage can lead to delays, increased costs, and safety risks. Understanding the fundamental steps of commissioning and startup is essential for a smooth and efficient transition from construction to operation.

Imagine this:

During walkdown, you notice missing insulation or disassembled flanges.

What’s your next move? Do you proceed with startup, or is this an issue that needs to be resolved before startup? Knowing how to make decisions and handle such situations is crucial for a safe and successful startup.

This course provides an overview of key processes and best practices involved in commissioning and startup. You will learn about the stages of systems completion, the difference between pre-commissioning and commissioning, and the essential steps for ensuring a safe and efficient startup.

What you will learn

• the main steps of systems completion and handover
• the difference between pre-commissioning and commissioning
• the key aspects of mechanical completion and system turnover
• essential safety and risk management principles for commissioning
• how to conduct performance testing

Who should take this course?

• engineers, operators, and managers involved in plant commissioning and startup
• professionals looking to understand the fundamentals of commissioning
• anyone interested in gaining practical knowledge of plant startup processes

Are you ready to make the right decisions during commissioning and startup?

join us and take the first step toward mastering these essential skills!

Who this course is for:

Process, mechanical, electrical, and instrumentation engineers working on plant commissioning and startup.
Operations and maintenance personnel responsible for ensuring system readiness.
Anyone looking to transition into a commissioning role or expand their expertise in oil and gas facility startup.

Introduction to Commissioning and Startup

What you'll learn

Explore related topics

Course content

Introduction9 lectures • 23min

Mechanical Completion5 lectures • 18min

Pre commissioning5 lectures • 13min

Commissioning1 lecture • 5min

Requirements

Description

Who this course is for: