Abstract: A method for enhanced oil recovery from a low permeability diatomaceous reservoir by imbibition is described. In this method, oil is displaced from a single injection well, or series of injection wells into a single producer or series of producing wells by a combination of applied fluid pressure, plus "enhanced imbibition." Enhanced imbibition is accomplished by adding chemical additives to the injection fluid so that rock in the tight reservoir has a stronger affinity for the water present therein, thus releasing oil from the rock.

Abstract: Apparatus for generating a display upon the screen of a television receiver which display changes with changes in the audio frequency signal is disclosed comprising a carrier signal source, a color subcarrier signal source, a horizontal synchronizing signal source, and means for varying the phase of the color subcarrier signal in accordance with audio frequency signals only in the absence of horizontal synchronizing signals. Flashing horizontal color stripes are displayed on the screen of a color television receiver in rhythm with the sounds coming from an audio source with the pitch of the sound determining the number of sets of color stripes and the loudness of the sound determining the number of hues within each stripe set.