Use inter-well picks: Turn this on to include inter-well picks in the time/depth calculation. This option is only available when calculating your depth grid from formation tops or velocity curves. Although inter-well picks are turned on from this dialog box, they are created in the Edit Velocity Grid window, opened by clicking below the velocity grid in theDisplay Grids dialog box after completing a calculation. Note: When you are calculating your depth grid using formation tops, you must specify the inter-well pick formation name from theEdit Velocity Grid window, where only the names of the formation tops being used in the calculation will be available. When you are calculating your depth grid using velocity curves, you can select an existing inter-well pick formation name, or enter a new name directly from the Velocity Options tab.