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Applicable to all Oil & Gas Operators GUIDELINES FOR THE IMPLEMENTATION OF RISK BASED INSPECTION IN THE NIGERIAN OIL AND GAS INDUSTRY Code: DPR Guide 0022 - 2020

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Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE IMPLEMENTATION OF RISK BASED INSPECTION IN 
THE NIGERIAN OIL AND GAS INDUSTRY 
Code: DPR Guide 0022 - 2020 
 
Revision Date: 1st August 2020 
 
 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
10 
Inspection Interval (MII) for each piece of equipment/device under review.  The 
inspection to be performed at this interval shall be major, internal and/or 
performance of tests/recertification for each equipment/device as applicable. 
ii. 
The results containing the information in Table 3.1 for each of the assessed 
equipment/device shall be submitted to the DPR in both hard and soft copies 
(Microsoft Excel format) at the end of the RBI assessment for approval. 
Table 3.1: RBI Assessment Results Submission Format 
 
S/N 
Elements  
Notes 
1 
Submission Date 
 
2 
Facility Name 
Full Facility name 
3 
Equipment Type 
Pressure Vessel, Pressure Relief Devices, etc 
4 
Equipment Description 
E.G. Scrubber, Pilot Operated Valve 
5 
Equipment Serial Number 
 
6 
Equipment Tag Number 
 
7 
Equipment Manufacturer  
 
8 
Equipment Installation Date 
 
9 
Last Inspection Date 
 
10 
Last NDT Inspection Type Performed  
NST Inspection Type performed (Magnetic 
Particle Testing (MT); Radiographic Testing 
(RT); Ultrasonic Testing (UT) Etc) 
11 
Likelihood of Failure Ranking  
Equipment Criticality Ranking 
12 
Consequence of Failure Ranking  
Equipment Criticality Ranking 
13 
RBI Assessment Date 
The date equipment/ device was RBI-assessed  
14 
Maximum Inspection Interval  
 
15 
Next Inspection Date  
Last Inspection Date + Maximum Interval  
16 
Proposed NDT Inspection Type 
NST Inspection Type performed (Magnetic 
Particle Testing (MT); Radiographic Testing 
(RT); Ultrasonic Testing (UT) Etc) 
 
3.5 
RBI Approvals 
After a satisfactory outcome of the RBI assessment and upon the submission of the RBI 
results, the DPR shall validate and issue a final RBI implementation approval for the 
assessed equipment/devices of a facility under review. 
Table 3.1: RBI Assessment Results Submission