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Guideline for Management of GHG and Fugitive Emissions from Midstream and Downstream Petroleum Operations

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¢ NIGERIAN MIDSTREAM AND 
| 
* DOWNSTREAM PETROLEUM 
: 
, 
fi) REGULATORY AUTHORITY (NMDPRA) 
Applicable to all Midstream and Downstream 
Petroleum Operations 
L 
GUIDELINES FOR MANAGEMENT OF GREEN HOUSE GASES (GHG) 
AND FUGITIVE EMISSIONS FROM MIDSTREAM AND DOWNSTREAM 
PETROLEUM OPERATIONS IN NIGERIA 
Appendix IV- Definitions 
. 
Activity Data: Data on the magnitude of a human activity resulting 
in emissions or 
removals taking place during a given period. Data on energy use, metal production, 
land 
areas, management systems, 
lime and 
fertilizer 
use, 
and waste 
arisings 
are 
examples of activity data 
Authority: The Nigerian Midstream and Downstream Petroleum Regulatory Authority 
(NMDPRA) 
. 
Base year: The year 
in which the Regulated Parties carry out for the 
first time, 
in 
accordance 
with 
these 
Provisions, 
the 
quantification 
of GHG 
emissions 
in 
the 
hydrocarbons Sector Facilities, and which will serve as a reference to the emissions of 
subsequent years 
Breathing Losses: Describes gas vapors that are released from an uncontrolled storage 
tank when the tank is subjected to a temperature rise, for example as a result of heat 
from the sun. 
Centrifugal compressor: Equipment that increases the pressure of 
— natural gas by 
centrifugal action through an impeller (Screw, sliding vane, and liquid ring compressors 
are not centrifugal compressors). 
Centrifugal compressor seal: A wet or dry seal around the compressor shaft where the 
shaft exits the compressor case. 
COz equivalent (CO2-eq) 
emission means 
the amount 
of carbon dioxide 
(CO2) 
emission 
that would cause the same integrated radiative forcing 
or temperature 
change, over a given time horizon, as an emitted amount of a greenhouse gas (GHG) 
or a mixture 
of GHGs. There are 
a number of ways 
to compute such equivalent 
emissions and choose appropriate time horizons. Most typically, the CO2-equivalent 
emission 
is obtained 
by multiplying the emission 
of 
a GHG by 
its global warming 
potential (GWP) 
for a 100-year time horizon. For a mix of GHGs, 
it 
is obtained by 
summing up the CO2-equivalent emissions of each gas. CO2-equivalent emission 
is a 
common 
scale 
for comparing 
emissions 
of 
different GHGs 
but does 
not 
imply 
equivalence of the corresponding climate change responses. 
. Competent Person: means one of the following: 
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