===== Terms beginning with I =====

[[ID]]

[[Ideal gas]]

[[Igneous rock]]

[[Igniter]]

[[Impedance]]

[[Impermeable]]

[[Immiscible]]

[[Inclination]]

[[Inclinometer]]

[[Index]]

[[Induced polarization]]

[[Induced spectral gamma ray log|Induced spectral gamma-ray log]]

[[Induction Electrolog|Induction-Electrolog]]

[[Induction log]]

[[Inelastic collision]]

[[Inelastic scattering]]

[[Injection well]]

[[In situ]]

[[In situ combustion|In-situ combustion]]

[[Insular globules]]

[[Insular saturation]]

[[Insulation]]

[[Integrate]]

[[Integrated travel time]]

[[Intensity modulated time|Intensity modulated-time]]

[[Interface]]

[[Intermediate casing string]]

[[Internal phase]]

[[International system of units]]

[[Interstitial water]]

[[Interval transit time]]

[[Interval transit time integration]]

[[Interval transit time stretch|Interval transit-time stretch]]

[[Intervalometer]]

[[Intrinsic thermal decay time]]

[[Intrusive]]

[[Invaded zone]]

[[Invasion diameter]]

[[Invert oil emulsion]]

[[Invert oil mud]]

[[ion|Ion(s)]]

[[Ion exchange]]

[[Ionization]]

[[Ionization chamber]]

[[IR drop]]

[[Irradiation]]

[[Irreducible saturation]]

[[Irreducible water saturation]]

[[Isopach map]]

[[Isosaturation surface]]

[[Isothermal]]

[[Isotopes]]

[[Isotropy]]

[[Iterative]]