Library / Applicable to all Oil & Gas Operators GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA Code: DPR Guide 0027 – 2021

Applicable to all Oil & Gas Operators GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA Code: DPR Guide 0027 – 2021

Page 20 of 48

Open the PDF at page 20

 
 
 
 
Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND 
MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA  
Code: DPR Guide 0027 – 2021 
 
Effective Date: 14th October 2021 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
14 
2.7.1 Factory Acceptance Tests & Pipeline Mill Inspections   
As applicable, Factory Acceptance Test (FAT) shall be carried out to evaluate design and 
operating specifications and assess any discrepancies and non-conformities of the pipeline 
systems and ancillary equipment prior to the assembly process. The FATs shall be 
witnessed by nominated SMEs from DPR. Deviations or abnormalities observed during 
testing shall be documented and corrected prior to shipment. 
Furthermore, where line pipes shall be procured as Long Lead Items (LLI), the full 
participation of the DPR representatives shall be mandatory for Pipeline Mill productions 
and Inspections. The proponent shall notify the DPR of all proposed manufacturing 
Inspection programs at-least six weeks prior to commencement of pipe mill activities. Site 
witness sheet signed by a representative of the Department and other parties shall be 
forwarded. 
Note: Such inspection may require the use of Certified Verification Agents as the DPR may 
deem fit. 
2.8 Pre-Commissioning 
Hydrocarbon shall not be introduced into any newly constructed or upgraded pipeline 
system without the pre-commissioning exercise carried out and witnessed by 
representatives of the Department. The pre-commissioning are series of approved 
activities required for the purpose of establishing the availability, functionality and 
reliability of a pipeline system prior to introducing hydrocarbon for normal transportation 
operation 
An application for the exercise alongside the pre-commissioning schedules and 
procedures shall be submitted to the Department at-least four (4) weeks prior to the 
commencement of the exercise. 
2.9 Commissioning / Introduction of Hydrocarbon 
Hydrocarbon shall not be introduced into any newly constructed or upgraded pipeline 
system without the approval for commissioning by the Department. Commissioning 
includes series of activities leading to the introduction of hydrocarbon fluid into a pipeline 
system that has been successfully pre-commissioned. Commissioning approval shall be 
granted to any pipeline system that has met the following conditions: