Patents by Inventor Nils-Egil Kangas
Nils-Egil Kangas 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).
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Patent number: 10844698Abstract: An apparatus includes a seabed-disposed pump that includes an inlet to receive a fluid flow and an outlet. The apparatus includes a liquid retainer that is adapted to receive a fluid flow that is produced by a subsea well. The liquid retainer selectively retains and releases liquid from the fluid flow to regulate a gas volume fraction of the fluid flow that is received at the inlet of the pump.Type: GrantFiled: December 1, 2017Date of Patent: November 24, 2020Assignee: OneSubsea IP UK LimitedInventors: Stig Kaare Kanstad, Nils-Egil Kangas, Joakim Almqvist, Carl-Martin Carstensen
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Patent number: 10830016Abstract: An apparatus includes a subsea flow line and a two stage heat exchanger. The subsea flow line communicates a process flow that is associated with a subsea well, and the heat exchanger transfers thermal energy between the process flow and an ambient sea. The heat exchanger includes a primary circuit in communication with the flow line to transfer thermal energy with the process flow; and the heat exchanger includes a secondary circuit in thermal communication with the primary circuit to transfer thermal energy with the primary circuit.Type: GrantFiled: October 18, 2017Date of Patent: November 10, 2020Assignee: OneSubsea IP UK LimitedInventors: Stig Kaare Kanstad, Nils-Egil Kangas
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Publication number: 20190169968Abstract: An apparatus includes a seabed-disposed pump that includes an inlet to receive a fluid flow and an outlet. The apparatus includes a liquid retainer that is adapted to receive a fluid flow that is produced by a subsea well. The liquid retainer selectively retains and releases liquid from the fluid flow to regulate a gas volume fraction of the fluid flow that is received at the inlet of the pump.Type: ApplicationFiled: December 1, 2017Publication date: June 6, 2019Inventors: Stig Kaare Kanstad, Nils-Egil Kangas, Joakim Almqvist, Carl-Martin Carstensen
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Publication number: 20180106131Abstract: An apparatus includes a subsea flow line and a two stage heat exchanger. The subsea flow line communicates a process flow that is associated with a subsea well, and the heat exchanger transfers thermal energy between the process flow and an ambient sea. The heat exchanger includes a primary circuit in communication with the flow line to transfer thermal energy with the process flow; and the heat exchanger includes a secondary circuit in thermal communication with the primary circuit to transfer thermal energy with the primary circuit.Type: ApplicationFiled: October 18, 2017Publication date: April 19, 2018Inventors: Stig Kaare Kanstad, Nils-Egil Kangas
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Patent number: 9463424Abstract: An actuatable apparatus, such as a mixer or flow splitter, is described that forms part of a multiphase pumping station. An outer tank has an upper inlet and an actuatable inner vessel disposed within the outer vessel. Multiphase fluid can pass from the outer vessel into the inner vessel though large upper openings. The inner vessel is configured to be actuatable such that the inner vessel moves in a vertical direction, thereby altering the size of an annular opening between the bottom of the inner vessel and the outer vessel. In some cases, the annular opening is adjusted to alter the operating envelope of a mixer. In other cases, the annular opening is opened to allow for sand cleaning. In yet other cases the apparatus is a downstream flow splitter, and the annulus is shut off to prevent loss of liquid phase during the startup of a dead field.Type: GrantFiled: July 9, 2014Date of Patent: October 11, 2016Assignee: ONESUBSEA IP UK LIMITEDInventors: Stig Kaare Kanstad, Nils Egil Kangas
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Patent number: 9303491Abstract: There is disclosed a subsea cooler for the cooling of a fluid flowing in a subsea flow line. The subsea cooler comprises an inlet and an outlet which are connectable to the subsea flow line and at least two cooling sections arranged in fluid communication with the inlet and the outlet of the subsea cooler. Each cooling section includes a plurality of cooling pipes which are configured such that they exchange heat energy with the surrounding sea water when the subsea cooler is in use. The subsea cooler is further provided with valve means such that the flow of fluid through the cooling sections may be regulated individually.Type: GrantFiled: March 29, 2010Date of Patent: April 5, 2016Assignee: Framo Engineering ASInventors: Stig Kare Kanstad, Nils-Egil Kangas, Asmund Valland, Atle Berle
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Publication number: 20160010433Abstract: An actuatable apparatus, such as a mixer or flow splitter, is described that forms part of a multiphase pumping station. An outer tank has an upper inlet and an actuatable inner vessel disposed within the outer vessel. Multiphase fluid can pass from the outer vessel into the inner vessel though large upper openings. The inner vessel is configured to be actuatable such that the inner vessel moves in a vertical direction, thereby altering the size of an annular opening between the bottom of the inner vessel and the outer vessel. In some cases, the annular opening is adjusted to alter the operating envelope of a mixer. In other cases, the annular opening is opened to allow for sand cleaning. In yet other cases the apparatus is a downstream flow splitter, and the annulus is shut off to prevent loss of liquid phase during the startup of a dead field.Type: ApplicationFiled: July 9, 2014Publication date: January 14, 2016Applicant: ONESUBSEA IP UK LIMITEDInventors: Stig Kaare Kanstad, Nils Egil Kangas
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Patent number: 9163482Abstract: There is provided a subsea system for increasing pressure and/or flow rate in a flow line, the subsea system being arranged in fluid communication with said flow line which receives fluid from at least one fluid source. The subsea system comprises at least one compressor or pump and at least one subsea cooler which is arranged in the flow line in series with the at least one compressor. The subsea system further comprises a recirculation line which is configured such that at least a portion of the fluid flowing in the flow line downstream the at least one compressor and the at least one subsea cooler may be recirculated back to the flow line upstream the at least one compressor and the at least one subsea cooler such that the recirculating line can be used for capacity regulation of the at least one compressor and cleaning of the at least one subsea cooler.Type: GrantFiled: March 29, 2010Date of Patent: October 20, 2015Assignee: Framo Engineering ASInventors: Stig Kare Kanstad, Asmund Valland, Nils-Egil Kangas, Atle Berle
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Publication number: 20120103621Abstract: There is provided a subsea system for increasing pressure and/or flow rate in a flow line, the subsea system being arranged in fluid communication with said flow line which receives fluid from at least one fluid source. The subsea system comprises at least one compressor or pump and at least one subsea cooler which is arranged in the flow line in series with the at least one compressor. The subsea system further comprises a recirculation line which is configured such that at least a portion of the fluid flowing in the flow line downstream the at least one compressor and the at least one subsea cooler may be recirculated back to the flow line upstream the at least one compressor and the at least one subsea cooler such that the recirculating line can be used for capacity regulation of the at least one compressor and cleaning of the at least one subsea cooler.Type: ApplicationFiled: March 29, 2010Publication date: May 3, 2012Applicant: FRAMO ENGINEERING ASInventors: Stig Kare Kanstad, Asmund Valland, Nils-Egil Kangas, Atle Berle
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Publication number: 20120097362Abstract: There is disclosed a subsea cooler for the cooling of a fluid flowing in a subsea flow line. The subsea cooler comprises an inlet and an outlet which are connectable to the subsea flow line and at least two cooling sections arranged in fluid communication with the inlet and the outlet of the subsea cooler. Each cooling section includes a plurality of cooling pipes which are configured such that they exchange heat energy with the surrounding sea water when the subsea cooler is in use. The subsea cooler is further provided with valve means such that the flow of fluid through the cooling sections may be regulated individually.Type: ApplicationFiled: March 29, 2010Publication date: April 26, 2012Applicant: FRAMO ENGINEERING ASInventors: Stig Kare Kanstad, Nils-Egil Kangas, Asmund Valland, Atle Berle