Patents by Inventor Jan Hoydal

Jan Hoydal 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: 9901847
    Abstract: A system for separating an input fluid flow comprising gas and liquid into separate gas and liquid flows is provided. The system includes a primary separator configured to receive the input fluid flow and to separate the input fluid flow into a primary separator liquid output flow and a primary separator gas output flow, a first secondary inline separator connected downstream from the primary separator to polish the primary separator gas output flow, a second secondary inline separator connected downstream from the primary separator to polish the primary separator liquid output flow, a system gas outlet, a system liquid outlet, a primary separator gas output valve on the primary separator gas output flow, and a control system configured to receive measurements of liquid level within the primary separator, and identify, using the received measurements, whether a position of the primary separator gas output valve is to be changed.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 27, 2018
    Assignee: STATOIL PETROLEUM AS
    Inventors: Jan Høydal, Olav Kristiansen, Gisle Otto Eikrem, Kjetil Fjalestad
  • Publication number: 20170002822
    Abstract: A method and apparatus controls a compressor, where the compressor inlet gas may contain water and/or non-aqueous liquid. The method includes the steps of measuring temperature at the compressor inlet and/or outlet side, measuring pressure at the compressor inlet and outlet side in order to determine a compressor pressure ratio, measuring fluid mixture density at the compressor inlet and/or outlet side, measuring individual volume fractions of gas, water and non-aqueous liquid at the compressor inlet and/or outlet side, measuring fluid velocity at the compressor inlet and/or outlet side, and determining individual flow rates of gas, water and non-aqueous liquid on the basis of the measured individual volume fractions of gas, water and non aqueous liquid and the fluid velocity at the compressor inlet and/or outlet side.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 5, 2017
    Applicant: STATOIL ASA
    Inventors: Lars BRENNE, Jan HØYDAL
  • Patent number: 9416790
    Abstract: A method and apparatus controls a compressor, where the compressor inlet gas may contain water and/or non-aqueous liquid. The method includes the steps of measuring temperature at the compressor inlet and/or outlet side, measuring pressure at the compressor inlet and outlet side in order to determine a compressor pressure ratio, measuring fluid mixture density at the compressor inlet and/or outlet side, measuring individual volume fractions of gas, water and non-aqueous liquid at the compressor inlet and/or outlet side, measuring fluid velocity at the compressor inlet and/or outlet side, and determining individual flow rates of gas, water and non-aqueous liquid on the basis of the measured individual volume fractions of gas, water and non aqueous liquid and the fluid velocity at the compressor inlet and/or outlet side.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 16, 2016
    Assignee: STATOIL ASA
    Inventors: Lars Brenne, Jan Høydal
  • Publication number: 20150290560
    Abstract: A system for separating an input fluid flow comprising gas and liquid into separate gas and liquid flows, the system comprising: a primary inline separator configured to receive said input fluid flow and to separate said input fluid flow into a primary separator liquid output flow and a primary separator gas output flow; at least one secondary inline separator connected downstream from said primary inline separator to receive at least one of said primary separator output flows and to separate said received primary separator output flow into a secondary separator liquid output flow and a secondary separator gas output flow; a system gas outlet connected to at least one of said primary and secondary separators to output said respective gas output flow; a system liquid outlet connected to at least one of said primary and secondary separators to output said respective liquid output flow; and a control system configured to regulate flow through said primary and secondary separators to ensure a flow of gas from sai
    Type: Application
    Filed: December 22, 2011
    Publication date: October 15, 2015
    Applicant: STATOIL PETROLEUM AS
    Inventors: Jan Høydal, Olav Kristiansen, Gisle Otto Eikrem, Kjetil Fjalestad
  • Patent number: 8657940
    Abstract: Assembly to separate a multiphase flow, comprising at least one compact separation unit chosen among an in-line deliquidiser and an in-line phase splitter, said compact separation unit is arranged to receive the multiphase flow for separation thereof to a gas flow and a mainly liquid containing flow, an outlet for gas, arranged to receive the gas flow from the compact separation unit and possible additional gas flows, one or more conduit separators, arranged to receive the mainly liquid containing flow from the compact separation unit and any additional liquid containing flows, having an outlet for liquid from the at least one conduit separator in a low-lying part thereof.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: February 25, 2014
    Assignee: Statoil ASA
    Inventors: Eivind Aarebrot, Jan Høydal
  • Publication number: 20130170952
    Abstract: A method and apparatus controls a compressor, where the compressor inlet gas may contain water and/or non-aqueous liquid. The method includes the steps of measuring temperature at the compressor inlet and/or outlet side, measuring pressure at the compressor inlet and outlet side in order to determine a compressor pressure ratio, measuring fluid mixture density at the compressor inlet and/or outlet side, measuring individual volume fractions of gas, water and non-aqueous liquid at the compressor inlet and/or outlet side, measuring fluid velocity at the compressor inlet and/or outlet side, and determining individual flow rates of gas, water and non-aqueous liquid on the basis of the measured individual volume fractions of gas, water and non aqueous liquid and the fluid velocity at the compressor inlet and/or outlet side.
    Type: Application
    Filed: July 14, 2011
    Publication date: July 4, 2013
    Applicant: STATOIL ASA
    Inventors: Lars Brenne, Jan Høydal
  • Publication number: 20110072975
    Abstract: Assembly to separate a multiphase flow, comprising at least one compact separation unit chosen among an in-line deliquidiser and an in-line phase splitter, said compact separation unit is arranged to receive the multiphase flow for separation therof to a gas flow and a mainly liquid containing flow, an outlet for gas, arranged to receive the gas flow from the compact separation unit and possible additional gas flows, one or more conduit separators, arranged to receive the mainly liquid containing flow from the compact separation unit and any additional liquid containing flows, having an outlet for liquid from the at least one conduit separator in a low-lying part thereof.
    Type: Application
    Filed: February 25, 2009
    Publication date: March 31, 2011
    Applicant: STATOIL ASA
    Inventors: Eivind Aarebrot, Jan Høydal
  • Patent number: 6752860
    Abstract: An apparatus for separation of the fluid flow flowing through a pipeline into a light fraction and a heavier fraction has a tubular casing (2) arranged to constitute a section of the pipeline proper, a spin element (5) for rotation of the fluid flow at the upstream end of the casing (2), and a discharge element (12) downstream of the spin element (5) having opening (13) for discharge of the light fraction and possibly entrained heavier fraction. The apparatus also has a control separator (25) connected to the discharged element (12) and arranged to separate entrained heavier fraction from the light fraction, and a control system including a level transmitter (42) indicating the level of separate heavier fraction in the separator, and a level control unit (43) connected to the level transmitter (42) and to a drain valve (40, 41) in a separator outlet (28) for the light fraction.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: June 22, 2004
    Assignee: Statoil ASA
    Inventors: Jan Hoydal, David Stanbridge
  • Patent number: 6544420
    Abstract: A tube apparatus for outlet of liquid from a container, adapted to receive at least two different fluids with intermediate interface(s), where liquid outlet openings are located above and/or underneath the interface(s). At least one tube member is adapted to have a substantially horizontal position in the container and is provided with at least two liquid outlet openings. A collecting tube communicates with each tube member and serves to lead liquid out of the container. Immediately under and/or over each liquid outlet opening there is provided a plate-shaped flow control element which extends approximately horizontally in all directions with respect to the liquid outlet opening concerned.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 8, 2003
    Assignee: Den Norske Stats Oljeselskap A.S.
    Inventors: Jan Høydal, Per Farstad
  • Patent number: 6409808
    Abstract: A gravity separator including a vessel within which a mixture containing oil and water can separate under gravity to form vertically discrete oil and water layers, the vessel having an inlet assembly including a cyclone separator for separating an oil-containing inlet flow into gas and liquid phases, that assembly including ducting for receiving the underflow of cyclone separator and conducting that underflow into that region of the vessel which, in use, is above the water layer.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: June 25, 2002
    Assignee: Kvaerner Process Systems a.s.
    Inventors: Neville Paul Chamberlain, Ian Charles Bedwell, Bjorn Christiansen, Gunnar Vangen, Jan Hoydal