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

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

Page 45 of 49

Ss?
NIGERIAN MIDSTREAM AND
; DOWNSTREAM PETROLEUM
f
;
3 REGULATORY AUTHORITY (NMDPRA)
Applicable fo 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
ff.
gg.
hh.
kk.
Petroleum Liquids: means crude
oil, condensates,
liquid petroleum products and
natural gas liquids.
Pneumatic pump: A device that uses natural gas or compressed air to power a piston
or diaphragm in order to circulate or pump liquids.
Reciprocating natural gas compressor: Equipment that increases the pressure of natural
gas by positive disolacement of a piston in
a compression cylinder and is powered by
an internal combustion engine or electric motor with a horsepower rating supplied by
the manufacturer.
Reciprocating
natural gas compressor rod packing: A seal comprising of a series of
flexible rings
in machined metal cups that
fit around the reciprocating compressor
piston rod to create a seal limiting the amount of compressed natural gas that vents
into the atmosphere.
Reciprocating natural gas compressor seal means any device or mechanism used to
limit the amount
of natural gas that vents from
a compression cylinder into the
atmosphere.
Seal- A seal is a device or material used to prevent the leakage of fluids such as gases
or liquids, between two adjacent components in a system.
Tier: A tier represents a level of methodological complexity. Usually, three (3) tiers are
provided. Tier
1
is the basic method and uses activity data and default emission factors
to
estimate
emissions from
a_
particular
industry segment
or subsegment.
Tier
2
intermediate and Tier 3 are sometimes referred to as higher tier methods and are
generally considered to be more accurate. Tier 2 estimates emissions at the industry
segment or subsegment level but requires the use of couniry-specific emission factors,
while Tier 3 inventory requires detailed industry information and activity data that is used
to estimate emissions.
mm. Validation: Validation is the establishment of sound approach and foundation. In the
context
of emission inventories, validation involves checking
to ensure that the
inventory
has
been
compiled
correctly
in
line
with
reporting
instructions
and
guidelines.
It checks the internal consistency of the inventory. The legal use
of
validation is to give an official confirmation or approval of an act or product.
nn. Vapor Recovery System: Equipment and components installed on pressure vessels,
separators, tanks, or sumps including piping, connections, and flow-inducing devices
44