Get skillet smoking hot ( cast iron skillet) add enough olive oil to coat bottom of skillet. Drop scallops one at a time, leaving plenty of room between each. Let sizzle about 2 minutes on that side. (Don't move so to caramelize)
With tongs flip each to other side. Now, add butter and sizzle 1 1/2 more minutes or until scallops are evenly opaque. Do not overcook!