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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

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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  
 
42 
ITP  
Inspection Test Plan 
LTO  
Licence to Operate 
MFR  
Melt Mass Flow Rate 
MOSR  
Minerals Oil Safety Regulation 
NACE 
National Association of Corrosion Engineers 
NDR  
National Data Repository 
NDT 
Non-Destructive Test 
NPT 
National Pipe Thread 
OGISP 
Oil And Gas Industry Service Permit 
O&M 
Operation and Maintenance 
OPLL 
Oil Pipeline Licence 
PFS 
Process Flow-Scheme 
PIA 
Preliminary Impact Assessment 
P&ID 
Piping and Instrumentation Diagram 
PQR 
Procedure Qualification Record 
PTS 
Permit to Survey 
ROW 
Right of Way 
SAT 
Site Acceptance Test 
SME 
Subject Matter Experts 
SDR 
Standard Dimension Ratio 
SOW 
Scope of Work 
TSC 
Technical Safety Control 
WPS 
Welding Procedure Specification 
 
Approved by 
 
Engr. Sarki Auwalu  FNSE, FNSCHE 
(Director/CEO, Department of Petroleum Resources) 
 
Date 14th October 2021