|Series||Geophysical Reference Series|
|Author||Robert E. Sheriff|
|Store||SEG Online Store|
1. See migration (seismic). 2. Movement of ions in a solution because of an electric-field gradient; called mobility. 3. Movement of hydrocarbons between the locales of their generation and accumulation. 4. Movement of fluids (e.g., of a oil and water) in a reservoir.