Library / Applicable to all Oil & Gas Operators PROCEDURE GUIDE FOR THE GRANT OF PERMIT/APPROVAL/LICENSE FOR LUBE OIL BLENDING/WASTE OIL RECYCLING PLANT Code: DPR Guide 0021 - 2020

Applicable to all Oil & Gas Operators PROCEDURE GUIDE FOR THE GRANT OF PERMIT/APPROVAL/LICENSE FOR LUBE OIL BLENDING/WASTE OIL RECYCLING PLANT Code: DPR Guide 0021 - 2020

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Applicable to all Oil & Gas Operators  
PROCEDURE GUIDE FOR THE GRANT OF PERMIT/APPROVAL/LICENSE FOR 
LUBE OIL BLENDING/WASTE OIL RECYCLING PLANT 
Code: DPR Guide 0021 - 2020 
 
Revision Date: 2nd October 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
7 
These procedures shall generally follow the relevant specifications in the under-listed 
documents: 
i. 
American Welding Society – Structural Welding Code A.W.S.D.1.1 88 and the 
subsequent revisions. 
ii. 
API Standards 1104 – 17th and subsequent editions for welding of pipelines 
and related facilities. 
At the completion of fabrication, the quality control inspecting company shall compile a 
report confirming that all materials used were strictly in accordance with approved 
specifications and the approved Standards and Codes of Practice. The quality control 
inspection shall be by Non-Destructive Examination (NDE). Also, at completion of tank 
construction, the company shall conduct calibration of the tank in accordance with API 650 
standard and procedure and must be duly witnessed by DPR Inspector. The inspection and 
certification of all welded parts of vessels, columns and piping shall be by any of the 
following techniques as applicable: 
a. 
Liquid Penetrant Technique 
b. Magnetic Particle Technique 
c. 
Radiographic Technique 
d. 
Ultrasonic Technique 
The plant owner shall note that all critical equipment shall be subjected to test/pre-
shipment inspection duly witnessed by DPR inspector(s) whether it is fabricated locally 
before installation or abroad before importing same into the country.  
 
3.2 
Storage Tanks Spacing  
For all storage tanks, the minimum distances shall be as follows: 
1. Between the perimeter of the tank and the outer boundary of the installation, it 
shall be at least 6.096 m (20 ft).