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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 OF AN AUTOGAS 
REFUELLING STATIONS AND  ADD-ON GAS FACILITY IN NIGERIA 
Code: DPR Guide 0042 - 2020 
 
Revision Date: 1st September 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
19 
xi. 
The installation shall be accomplished with appropriate equipment that ensure the 
Underground Tanks are not dropped, dragged or handled with sharp objects 
xii. 
The installation of underground tanks shall be in such a way that enables easy 
removal without jeopardising the safety or integrity of adjacent tanks or 
infrastructure. 
xiii. 
Where the soil may be corrosive, the tank shall be set on a clean shingle or sweet 
sand free of extraneous materials to avoid seepage of products to underground 
water courses or any drainage system. 
xiv. 
Foundations and sub-soil shall be examined and prepared to support the tank to 
prevent movement, uneven settlement or concentrated loading in the tank shell. 
3.4.1.1 
Corrosion Protection for Buried Tanks 
i. 
A suitable system of cathodic protection (typically sacrificial anode for small 
installations and impressed current for large installations) shall be provided. 
Appropriate current and voltage readings should be taken periodically, recorded 
and analysed to ensure that the condition of the tank is effectively monitored. 
ii. 
External surfaces of the tank should be suitably prepared and treated with a 
coating manufactured and applied in accordance with a recognised standard, to 
both protect against chemical and mechanical damage and minimise cathodic 
protection current drain. 
iii. 
Avoid damage to the tank coating during installation. Fault detection equipment 
can be used to check that the coating is intact. Rectification of any damage should 
be completed before back-filling the tank. 
3.4.2 Requirements for Skid-mounted and Containerized Facility  
The following shall apply for standalone Containerized and Skid-mounted facilities: 
i. 
They shall meet same safety distances in section 3.3, for  autonomous Autogas 
refuelling stations.