© 2019 Department of Petroleum Resources. All rights reserved Department of Petroleum Resources (DPR) PROCEDURE GUIDE

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1.0 Purpose
This guide is issued pursuant to the provisions of section 7 (1) (a) of the Petroleum Act of
1969 and Regulation 52 of the Petroleum (Drilling and Production) Regulation of 1969. It
describes the method to be used and the standards to be complied with in carrying out the
quantity and quality measurements of petroleum and petroleum products at designated
facilities; the approved devices and equipment, approved calibration methods, frequency
and all other pertinent matters.
1.1 Application
1.1.1 This procedure guide applies to measurement of quantities and qualities of petroleum
and petroleum products, at all approved facilities, which include
but not limited to the following:
•
All Export Terminals (Onshore and Offshore).
•
Special Purpose Vessel storage (SPVs).
•
Third party Injection and Supply points.
•
Loading and Discharging Jetties.
•
Refinery Tank farms / Products Depots.
•
Production Facilities and Flow-stations.
1.2 General Provisions
1.2.1 The primary measurement method for determining the fiscal quantities of petroleum
and petroleum products at all offshore/onshore facilities and tank farms shall be by dynamic
measurement method. Such facilities shall be equipped with functional meters to be
installed and maintained in accordance with the relevant section of this guide as issued by
the Department of Petroleum Resources. However, manual tank gauging, which in this
procedure guide is called static measurement, shall be the secondary method of
measurement.
1.2.2 In all other production and custody transfer points (which include third party injection
points), the primary measurement device shall be with the use of meters with tank gauging
as back up wherever possible and as specified by the Department of Petroleum Resources.
All such points shall therefore be equipped with properly certified meters which may
include: Positive Displacement meters, Turbine meters, Ultrasonic flow meters, Coriolis
meters, Differential Pressure meters and others, as approved by the Director of Petroleum
Resources and shall be selected, installed, operated and maintained in accordance with the
provisions of the procedure guide on dynamic measurement method as well as the
manufacturer’s specification.
1.2.3 All custody transfer points from which export of petroleum and petroleum products
take place shall have installed, an export line valve with a lock system on the main loading
line to be located Downstream the pumps. The valve shall be the main gate of all petroleum
and petroleum products leaving the facility.