Abstract: A steam-assisted gravity drainage or cyclic steam injection method for recovering oil from a development region of an underground reservoir, further employing water injection along one or more peripheral side edges of the development region via a horizontal well or wells to thereby bound the development region on at least one side edge thereof, and preferably along two or more side edges, with water to thereby reduce steam loss from the development region and thus reduce steam-to-recovered oil ratio (SOR). The water may be combined with diluents. The water which is injected into the horizontal well or wells may comprise produced water recovered from said reservoir.

Abstract: A steam-assisted gravity drainage or cyclic steam injection method for recovering oil from a development region of an underground reservoir, further employing water injection along one or more peripheral side edges of the development region via a horizontal well or wells to thereby bound the development region on at least one side edge thereof, and preferably along two or more side edges, with water to thereby reduce steam loss from the development region and thus reduce steam-to-recovered oil ratio (SOR). The water may be combined with diluents. In a preferred embodiment, the water which is injected into the horizontal well or wells comprises produced water recovered from said reservoir.

Abstract: An intermittent positive pressure breathing device for neonatal infants. The device is connected to a supply of pressurized oxygen supplied through a first conduit. The first conduit terminates in a venturi nozzle by which ambient air is entrained so that a mixture of oxygen and ambient air at a desired concentration is delivered along a second conduit towards the mouth of the neonate. The second conduit terminates in a mask having a first aperture disposed adjacent the mouth of the neonate in a sealing relationship and a second aperture which is repeatedly and rhythmically covered by the operator to initiate a conventional breathing pattern for the neonate. A one way valve upstream of the venturi nozzle opens when the venturi nozzle induces a lower than atmospheric pressure in the device and automatically closes when the pressure in the device is increased by the operator closing off the second aperture.

Abstract: An intermittent positive pressure breathing device for neonatal infants is disclosed. The device is adapted to be connected to a supply of pressurized substantially pure Oxygen which is supplied through a first conduit of the device. Said first conduit terminates inside the device in a venturi nozzle by virtue of which ambient air is entrained so that a mixture of Oxygen and ambient air at a desired concentration is delivered along a second conduit of the device towards the mouth of the neonate. The second conduit terminates in a mask having a first aperture which is adapted to be disposed adjacent the mouth of the neonate in sealing relationship therewith, and a second aperture approximately the size of a thumb which can be repeatedly and rhythmically covered by the operator of the device to initiate a conventional breathing pattern for the neonate.