SPE E&P Glossary
IA
IADC
IAM
IAP
IAxOA
IBP
IC
IChoke
ICOTA
ICP
ICV (injection)
ICV (completion)
ID
ID Drift (of pipe)
ID<sub>m</sub>
ID<sub>n</sub>
Ideal Gas
IEEE
IEM
IFP
IFT
IGLR
Igneous Rock
IGP
IGRF (seismic)
II (injection well)
ILD (logging)
Illite
ILM (logging)
IM Standard (BP)
Imbibition
IMF
Immature Oil
Impact (in risk analysis)
Impedance
Impeller
Impermeable
Impressed Current
Impression Block
Impression Packer
Improved Oil Recovery or IOR
Inclination (wellbore)
Inclusion (corrosion)
Incompatible Waters
Independent
Index Fossils
Indexing Tool
Indicator (chemical)
Indicator (mechanical load)
Induced Spectral Gamma Ray Log
Induction Log
Inert
Infant Failure
Infill Drilling
Infinite Acting Reservoir
Inflatable Packer
Inflow Performance Relationship
Influx
Inhibitor
Inhibitor Intensifier
Inhibitor Truck
Initial Circulating Pressure
Initial Gel Strength
Initial Potential
Initial Reservoir Pressure
Injection Gas
Injection Log
Injection Pressure Operated Valve (gas lift)
Injection Valve
Injection Well
Injection-Withdrawal Ratio
Injectivity Index
Injector Head (coiled tubing)
Insert pump
Inside Blowout Preventer
In-Situ
In-situ Coal Gasification
In-Situ Combustion
In-situ stress
Instrument Hanger
Insulated Flange
Insulated Tubing
Intangible Drilling Costs
Integrated
Integrity Management
Intensifier
Intercrystalline corrosion
Interface Treatment
Interference (perforating)
Intergranular Corrosion
Intermediate Base Oil
Intermediate Casing
Intermittent Lift or Flow
Intermitter
Internal Cutter
Internal Filter Cake
Internal Upset
Interstitial Water
Intervention
Invaded Zone
Invasion (drilling or workover)
Inverse Modeling (seismic)
Invert Emulsion
Invert Mud
Ion Exchange
IP (facilities)
IP (technology)
IPA
IPAA
IPC (field capacity)
IPL
IPR
IPTT
IRIS(tm)
Iron Control
Iron Hydroxide
Iron Reducer
Iron Roughneck
Iron Scales
Irreducible Water Saturation
ISA
ISC
Isenthalpic
ISIP
ISIS(tm)
ISO
Isobar map
Isochronal test
Isochrone
Isopach
Isoproponal
Isosaturation
Isothermal
Isotropic
ISP
ISRS
ISSSV
IU
IUD
IVICV
IWOCS (subsea)
