SPE E&P Glossary
n (logging)
n (viscosity)
NACE
NaCl
Nanometer
Nanotesla (seismic)
NaOH
Naphtha
Naphthalene Base Oil
Naphthalene Flakes
Native State Core
Natural Completion
Natural Fracture
Natural Gas
Natural Gas Liquids
Natural Gasoline
Natural Seep
Naturally Flowing Well
Naturally Occurring Radioactive Material
NBR
ND
NDT
Near Wellbore Damage
Neat Cement
NEC
Needle and Seat Choke
Needle Valve
NEO
Neritic
Net Acres
Net Back
Net Pay
Net Pay Cutoff
Net Production
Net Profits Interest
Net Revenue Interest
Net-To-Gross Ratio
Neutral Point
Neutralization (processing)
Neutralization (stimulation)
Neutron Capture
Neutron Log
Newtonian Fluid
NFT
NGL
NGV
NH<sub>4</sub>Cl
Nipple (tubular string)
Nipple Down
Nipple Profile
Nipple Protector
Nipple Up
NIR
NITR
Nitride
Nitrified Fluid
Nitrile
Nitro Shot
Nitrogen Cushion
Nitrogen Kickoff
Nitrogen Lift
NLL
Nm<sup>3</sup>
NMO (seismic)
NMR
No Go
Nodal Analysis
Nodding Donkey
Node
NOEL
Noise Log
Nolte G-function
Nolte-Smith Plot
Nominal (in filtration)
Non Associated Gas
Non Conductive Mud
Non Conventional Gas
Non Darcy Flow
Non Dispersed
Non Emulsifier
Non Marking Slips
Non Newtonian
Non-Producing Reserves
Non-Stress Preferred Fracture Plane
Non Upset or NU Connection
Non Selective Nipple
Nonionic Surfactant
NORM
Normal Circulation
Normal Fault
Normalizing (pipe)
Normally Pressured
NORSOK
North Sea Brent
NOx
Nozzle
NPD
NPH
NPT
NR
N<sub>Re</sub>
NRV (flow line)
NRWO
NTA
NTEL
NTU
NU (pipe)
NU (repairs)
Nylon
