Pre-Commissioning Engineering!

The Pre-Commissioning activities are organized by system and subsystem, following an approved sequence that optimizes the start-up phase. The Pre-Commissioning physical scope of work consists in: 

• Systematic conformity checks of equipment items 
• Static/de-energized tests of equipment items 
  
• Pipes works flushing, pressure test grouped by Test Pack 
  

Check lists
First type of task of the Pre-Commissioning scope of work, the conformity checks shall be carried out in accordance with, and reported on Check Lists. These Check Lists define the exact scope of work that shall be systematically performed on every item of equipment or on selected packages, the same support being also used to record the checks. PEPC365 develops checklists fit for the purpose for the project under Company approval.
In addition, PMCOilPro will define further Pre-commissioning tests necessary under Company approval which will take place at the SUPPLIERS premises and/or on the installation vessel or site.

Test sheets 
Second key Pre-Commissioning activity, the static and de-energized tests shall be carried out in accordance with technical specifications, and reported on Test Sheets and resources are available in due time. 

Piping tests or Tests Packs 
Third key Pre-Commissioning activity, the Tests pack shall group Pre-Commissioning activities on pipes work and vessels such as air or water flushing, pressure test (hydrotest). The Tests pack may be carried out on lines included in different subsystem.
For each element been a part of a Test Pack, PMC OilPro records, but not limited to : 

• The type of piping and flange 
• The quality of welding 
• The quality of painting 
• The type of gasket used for assembly. 

All these records will be available for a Company checking. 
The Test Packs breakdown may not fully match with a hierarchical sub-systems breakdown. PMC OilPro provides Tests Pack dossiers referenced with associated sub-system, with listing of the lines included (PI&D identification) and the Test Pack dossier reference wull be accepted and approved by Company

Status index
The Status Index is a list of all equipment subject to one or several Pre-Commissioning operations. This list, arranged per subsystem, discipline and type of equipment, will be created by PMC OilPro from the various Engineering and SUPPLIERS equipment lists (instrument list, cables list, piping list, etc.). The Status Index indicates for each item of equipment (instrument, electrical cables, pumps, etc.) the corresponding Pre-Commissioning tasks, i.e. checks, and tests when applicable, by showing the reference number of the task report document, i.e. Check Lists and Test Sheets numbers. The Status Index is therefore a summary of the PreCommissioning scope of work. 
The completion data of each task is recorded on the Status Index so that it is a working document used to follow up the work progress.

Punch list (during Pre-Commissioning) 
While the Pre-Commissioning checks and tests are being performed, all discrepancies, damaged or missing equipment, malfunctions, missing documents, if not corrected immediately, are recorded in the subsystem Punch List. At the Ready For Commissioning stage, an agreed punch list shall be issued for approval by the Commissioning team. During Commissioning and Start Up additional punch list items that are found shall be included in the punch list.

Pre-Commissioning dossiers 
All documentation pertaining to the Pre-Commissioning operations is compiled in a specific Dossier, arranged by: 

• System 
• Subsystem. 

They contain all the information required to demonstrate that a subsystem has reached the "Ready for Commissioning" status.

Pre-Commissioning activities summary 
During the Pre-Commissioning preparation, many documents shall be issued in order to anticipate and optimize in term of tools/consumable supply, resource, logistics, etc; PMC OilPro ensures that all the actions are launched in accordance with this preparation and that the means, tools, spares, consumablesType your paragraph here.