N

n	needle valve	nipple up	nonhydrocarbon contaminants
NACE	neritic	nipple-down	nonideal gas
naphthene base crude oil	nest	nipple-up	non-Newtonian fluid
naphthene-base crude oil	nested fractal structures	nitrified fluid	nonparticipating royalty
naphthenic hydrocarbon	net gas production	nitrogen cushion	nonparticipating royalty interest
Narrow-azimuth seismic data	net oil production	nitrogen injection	nonrising stem
native clay	net profits interest	nitrogen kickoff	normal
native solids mud	net revenue interest	nitrogen lift	normal fault
native state core	neural networks	nitrogen lifting	normal incidence
native-solids mud	neutral point	nitrogen unit	normal mode
natural completion	neutralization	NMO	normal moveout
natural fracture	neutralize	NMR	normal moveout correction
natural frequency	neutralizing solution	no go landing nipple	normal pressure
natural gamma ray spectroscopy	neutron activation log	NODAL* analysis	normality
natural gas	neutron capture	no-go landing nipple	normal-moveout correction
natural gas liquids	neutron generator	noise	NPDES
natural gasoline	neutron interactions	noise log	NRM
natural remanent magnetism	neutron log	nominal filter	nuclear fluid densimeter
naturally flowing well	neutron porosity	nonconductive drilling fluid	nuclear magnetic resonance
naturally occurring radioactive materials (NORM)	neutron-activation log	nonconformity	nuclear magnetic resonance measurement
nautical mile	Newtonian fluid	non-Darcy flow	numerical methods
near surface correction	NGL	nondestructive examination (NDE)	numerical model
near-surface correction	nipple	nondipole field	numerical reservoir simulation
neat cement	nipple down