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GUIDE FOR THE ESTABLISHMENT AND OPERATIONS OF DOWNSTREAM GAS FACILITIES IN NIGERIA (LPG, CNG, LNG) ISSUED BY

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Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE ESTABLISHMENT AND OPERATIONS OF CNG 
COMPRESSION FACILITIES IN NIGERIA 
Code: DPR Guide 0029 - 2020 
 
Revision  Date: 1st September 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
17 
ii. 
Appropriate warning notices, safety signs and instructions, shall be positioned at 
strategic locations and control rooms. Audio/visual alarms that is routinely tested 
is mandatory. 
iii. 
Adequate intrinsically safe lighting systems of explosion-proof type shall be 
installed at points to aid safety, security and dentification of the product(s) 
(signage and labels). Note: vent outlets and potential release points shall be 
avoided 
iv. 
Where numerous storage vessels are used, consideration should be given to 
separating these into isolatable sub-groups.  ESDs activating these isolation valves 
shall be provided both locally at each exit point from the storage site and remotely. 
 
3.8 
Fire/Blast Walls 
When Fire wall are used as determined by Section 3.3, the walls shall be of the following 
features at the minimum: 
i. 
Imperforated and substantially constructed from reinforced concrete or solid 
masonry and be capable of achieving at least 30 minutes fire resistance. Where the 
wall separates vulnerable populations from the dangerous substance, the fire 
resistance provided shall be for a minimum of 60 minutes. 
ii. 
Shall not be less than the height of the vessel. For larger vessels, it should not be 
less than 2 meters high or the height of the vessel, whichever is greater. 
iii. 
The thickness of the Firewall shall not be less than of 0.23m (9 inch). 
iv. 
The separation distance between the vessel and the firewall shall not be less than 
3 meters.  
v. 
The installation of the fire wall shall not significantly impair natural ventilation.  The 
provision on one side is normally sufficient. However, it shall not be more than two 
sides.