Patents by Inventor Carlos Alberto de Castro Goncalves

Carlos Alberto de Castro Goncalves has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5282508
    Abstract: A process and apparatus are provided to enhance the recovery of petroleum from onshore and offshore reservoirs. The process includes the simultaneous stimulation of the formation by elastic sound waves, created by a sonic source installed at the oil well so that the elastic sonic waves which are superimposed reduce the adherence forces in the layer between oil/water and the rock formation, and by the oscillating electrical stimulation of the same layer, as from the same wells subject to sonic treatment. The electricity heats the formation by using resistive heating, and thus increases the pressure, thus eliminating the surface tensions between the faces of the fluid as a consequence of the oscillatory action of the ions in the surfaces of the fluid and in addition, reducing the viscosity of the fluids.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: February 1, 1994
    Assignees: Petroleo Brasilero S.A. - PETROBRAS, Ellingsen and Associates A.S.
    Inventors: Olav Ellingsen, Carlos Roberto Carvalho de Holleben, Carlos Alberto de Castro Goncalves, Euclides J. Bonet, Paulo Jose Villani de Andrade, Roberto F. Mezzomo
  • Patent number: 3980416
    Abstract: An oil burner for oil wells in which the oil to be eliminated is admitted to a specially designed sprayer in which its mechanical atomization is brought about by the construction of said sprayer and its pneumatic atomization is effected by means of inputting gas or air under pressure, the atomized product being ignited by means of spark ignitors and the flame produced being protected by a cylindrical casing. Said casing is provided with a front spray ring which injects water into the flame so as to eliminate the formation of black smoke, and a back spray ring for forming a water curtain which protects the platform against heat radiation from the flame.Said burner is mounted on a tubular support permitting its rotation so as to accompany the wind direction.The material combustion capacity of said burner can reach 30 cubic meters an hour, and for higher flow rates, various identical units can be coupled in parallel.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: September 14, 1976
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Carlos Alberto de Castro Goncalves, Romeu Almeida Neves, Jose Bernardo Drucker