Patents Assigned to STATOIL PETROLEUM ASA
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Patent number: 9057244Abstract: A method for reversible temperature sensitive control of the flow of fluid in oil and/or gas production, involves a control device or an autonomous valve operating by the Bernoulli principle and includes a moveable disk or body provided within a housing for opening and closing the valve, involving use of the Curie-effect in order to position the body in a preferred position within the housing at a temperature below a certain, preferred transition or Curie temperature. An apparatus for reversible temperature sensitive control of the flow of fluid in oil and/or gas production including a control device or an autonomous valve operating by the Bernoulli principle and including a moveable disk or body provided within a housing for opening and closing the valve, the body and housing including a ferromagnetic material having a certain, preferred Curie temperature, the temperature being selected in order to position the body in a preferred position in the housing during installation or operation.Type: GrantFiled: November 6, 2009Date of Patent: June 16, 2015Assignee: STATOIL PETROLEUM ASAInventor: Sigbjørn Øvland
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Patent number: 8820414Abstract: The present invention relates to a method of improving flow stability for a multiphase fluid flowing through a tubular element (1), comprising arranging a flow control device (2) along a flow path (F) through the tubular element (1), the flow control device (2) comprising a housing (4), an inlet (10) arranged on an upstream side of the control device (2), an outlet (23, 13) arranged on a downstream side of the control device (2), and a movable body (9) provided within the housing (4) along an internal flow path (11) through the control device (2) from the inlet (10) to the outlet (23, 13), the body (9) being arranged such that changes in velocity and/or properties and/or composition of the fluid flowing along the internal flow path (11) result in changes to the forces acting on the body (9) as a result of the Bernoulli principle, thereby adjusting the flow of fluid through the control device (2).Type: GrantFiled: January 28, 2010Date of Patent: September 2, 2014Assignee: Statoil Petroleum ASAInventors: Vidar Mathiesen, Haavard Aakre, Arne Valle
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Publication number: 20130036763Abstract: A method for start-up of a liquefied natural gas (LNG) plant, the plant including a liquefaction unit arranged in a flow path of the plant, including removing LNG from a first location in the flow path downstream of the liquefaction unit; vaporizing the removed LNG, or heating the removed LNG so that the removed LNG is transformed to gas phase; and re-admitting the vaporized or transformed LNG to the flow path at a second location upstream of the liquefaction unit. A corresponding LNG plant is also provided.Type: ApplicationFiled: February 25, 2011Publication date: February 14, 2013Applicant: STATOIL PETROLEUM ASAInventors: Sivert Vist, Tore Løland, Morten Svenning, Silja Eriksson Glyseth
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Publication number: 20120031625Abstract: The present invention relates to a method of improving flow stability for a multiphase fluid flowing through a tubular element (1), comprising arranging a flow control device (2) along a flow path (F) through the tubular element (1), the flow control device (2) comprising a housing (4), an inlet (10) arranged on an upstream side of the control device (2), an outlet (23, 13) arranged on a downstream side of the control device (2), and a movable body (9) provided within the housing (4) along an internal flow path (11) through the control device (2) from the inlet (10) to the outlet (23, 13), the body (9) being arranged such that changes in velocity and/or properties and/or composition of the fluid flowing along the internal flow path (11) result in changes to the forces acting on the body (9) as a result of the Bernoulli principle, thereby adjusting the flow of fluid through the control device (2).Type: ApplicationFiled: January 28, 2010Publication date: February 9, 2012Applicant: Statoil Petroleum ASAInventors: Vidar Mathiesen, Haavard Aakre, Arne Valle
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Publication number: 20110290326Abstract: A method for reversible temperature sensitive control of the flow of fluid in oil and/or gas production, involves a control device or an autonomous valve operating by the Bernoulli principle and includes a moveable disk or body provided within a housing for opening and closing said valve, involving use of the Curie-effect in order to position said body in a preferred position within said housing at a temperature below a certain, preferred transition or Curie temperature. An apparatus for reversible temperature sensitive control of the flow of fluid in oil and/or gas production including a control device or an autonomous valve operating by the Bernoulli principle and including a moveable disk or body provided within a housing for opening and closing said valve, the body and housing including a ferromagnetic material having a certain, preferred Curie temperature, the temperature being selected in order to position the body in a preferred position in the housing during installation or operation.Type: ApplicationFiled: November 6, 2009Publication date: December 1, 2011Applicant: STATOIL PETROLEUM ASAInventor: Sigbjørn Øvland