===== Terms beginning with E =====

[[Eccentering arm]]

[[Effective permeability]]

[[Effective porosity]]

[[Effluent]]

[[Eh]]

[[Elastic collision]]

[[Elastic constants]]

[[Elastic properties of rocks]]

[[Elastic scattering]]

[[Elastic wave]]

[[Electrical coring]]

[[Electrical log]]

[[Electrical survey]]

[[Electrical zero]]

[[Electric log]]

[[Electrochemical potential]]

[[Electrode]]

[[Electrofiltration potential]]

[[Electrokinetic potential]]

[[Electrolog]]

[[Electrolyte]]

[[Electromagnetic casing inspection log]]

[[Electromagnetic propagation log]]

[[Electromagnetic propagation tool]]

[[Electromagnetic thickness log]]

[[Electromotive force]]

[[Electron density]]

[[Electronic casing caliper logging]]

[[Electron volt]]

[[Electropolarization potential]]

[[Elevation]]

[[Elevator bails]]

[[Elevators]]

[[Embrittlement]]

[[Empty hole]]

[[Emulsion]]

[[Endothermic]]

[[Enhanced oil recovery]]

[[Environmental calibrator]]

[[Environmental oil emulsion mud|Environmental oil-emulsion mud]]

[[Epilog]]

[[Epithermal neutron]]

[[Evaporite]]

[[Excavation effect]]

[[Exchange cation]]

[[Excursion]]

[[Exothermic]]

[[Expendable gun]]

[[Exploratory well]]

[[External phase]]

[[Extrusive]]