Patents by Inventor Jarmo Kekarainen
Jarmo Kekarainen 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: 9464497Abstract: A seal holder for retaining a sealing arrangement (119,121), said sealing arrangement (119,121) being adapted to seal against a facing seal surface (209) in a bore (203), said seal holder having an intermediate section (117a) encircled by a peripheral section (117b) arranged for carrying said seal arrangement (119,121), wherein said intermediate section (117a) is convex shaped towards the pressure side and is adapted to exert radial pressure on said peripheral section (117b) in the event of exposure to pressure on its convex side. The invention also relates to a method for sealing a bore by applying an apparatus equipped at its lower end with a seal holder (117) retaining a sealing arrangement (119,121).Type: GrantFiled: January 7, 2011Date of Patent: October 11, 2016Assignee: Aker Subsea ASInventor: Jarmo Kekarainen
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Patent number: 9353592Abstract: Subsea Xmas tree assembly (5, 505) having a Xmas tree main bore (7) and a Xmas tree annulus bore (9). The main bore (7) aligns with a tubing hanger main bore (16) and the Xmas tree annulus bore (9) communicates with a tubing hanger annulus bore (17), when the Xmas tree assembly (5, 505) is installed above a tubing hanger (3) of a subsea well. The subsea Xmas tree assembly (5, 505) comprises a plug tool (100) adapted to install and to retrieve a plug (200) into and out of the tubing hanger annulus bore (17) when the Xmas tree assembly (5, 505) is installed above the tubing hanger (3). The assembly has a tool accommodation compartment (118, 618) within which the plug tool (100) is arranged. An associated method is also described.Type: GrantFiled: November 15, 2013Date of Patent: May 31, 2016Assignee: Aker Subsea ASInventor: Jarmo Kekarainen
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Publication number: 20150247371Abstract: Subsea Xmas tree assembly (5, 505) having a Xmas tree main bore (7) and a Xmas tree annulus bore (9). The main bore (7) aligns with a tubing hanger main bore (16) and the Xmas tree annulus bore (9) communicates with a tubing hanger annulus bore (17), when the Xmas tree assembly (5, 505) is installed above a tubing hanger (3) of a subsea well. The subsea Xmas tree assembly (5, 505) comprises a plug tool (100) adapted to install and to retrieve a plug (200) into and out of the tubing hanger annulus bore (17) when the Xmas tree assembly (5, 505) is installed above the tubing hanger (3). The assembly has a tool accommodation compartment (118, 618) within which the plug tool (100) is arranged. An associated method is also described.Type: ApplicationFiled: November 15, 2013Publication date: September 3, 2015Applicant: Aker Subsea ASInventor: Jarmo Kekarainen
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Publication number: 20150139738Abstract: A releasable guidepost for use on the seabed together with a fixed subsea structure is shown. The guidepost assists during lowering of a component from the surface of the water to the subsea structure to obtain a focused landing of said component at a predetermined location. The guidepost includes an upward (in the position of use) projecting end designed for engagement with the lowered component. The guidepost is of a light weight shell construction, in order to increase buoyancy during lowering thereof through the sea by use of an ROV. The light weight shell construction defines a cavity filled with a non-collapsible buoyancy material in at least part of the guidepost.Type: ApplicationFiled: June 20, 2013Publication date: May 21, 2015Applicant: AKER SUBSEA ASInventor: Jarmo Kekarainen
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Patent number: 8950474Abstract: A cap having a stinger adapted to be inserted into a bore of a subsea well element. The stinger includes locking means for locking to a profile in said bore, which locking means include a plurality of locking dogs. The locking dogs exhibit a large inclination face and a small inclination face, and are adapted to be actuated in a radial direction by an actuation sleeve. The small inclination face is divided by a slot, in which slot the large inclination face is arranged. A cam is arranged on the actuation sleeve and is adapted to extend into said slot. Alternatively, the small inclination face is divided by a cam arranged on the locking dog, on which the large inclination face is arranged, which cam is adapted to extend into a slot in the actuation sleeve.Type: GrantFiled: January 7, 2011Date of Patent: February 10, 2015Assignee: Aker Subsea ASInventor: Jarmo Kekarainen
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Publication number: 20130307219Abstract: A seal holder for retaining a sealing arrangement (119,121), said sealing arrangement (119,121) being adapted to seal against a facing seal surface (209) in a bore (203), said seal holder having an intermediate section (117a) encircled by a peripheral section (117b) arranged for carrying said seal arrangement (119,121), wherein said intermediate section (117a) is convex shaped towards the pressure side and is adapted to exert radial pressure on said peripheral section (117b) in the event of exposure to pressure on its convex side. The invention also relates to a method for sealing a bore by applying an apparatus equipped at its lower end with a seal holder (117) retaining a sealing arrangement (119,121).Type: ApplicationFiled: January 7, 2011Publication date: November 21, 2013Applicant: Aker Subsea ASInventor: Jarmo Kekarainen
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Publication number: 20130069315Abstract: A seal holder for retaining a sealing arrangement (119,121), said sealing arrangement (119,121) being adapted to seal against a facing seal surface (209) in a bore (203), said seal holder having an intermediate section (117a) encircled by a peripheral section (117b) arranged for carrying said seal arrangement (119,121), wherein said intermediate section (117a) is convex shaped towards the pressure side and is adapted to exert radial pressure on said peripheral section (117b) in the event of exposure to pressure on its convex side. The invention also relates to a method for sealing a bore by applying an apparatus equipped at its lower end with a seal holder (117) retaining a sealing arrangement (119,121).Type: ApplicationFiled: January 7, 2011Publication date: March 21, 2013Inventor: Jarmo Kekarainen
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Publication number: 20120285699Abstract: Cap (100) comprising a stinger adapted to be inserted into a bore (203) of a subsea well element (200), said stinger comprising locking means (101) for locking to an profile (207) in said bore, which locking means comprises a plurality of locking dogs (101) which exhibit a large inclination face (101a) and a small inclination face (101b, 101c), and which are adapted to be actuated in a radial direction by an actuation sleeve (109). The small inclination face is divided by a slot, in which slot the large inclination face is arranged, wherein a cam (131) arranged on the actuation sleeve is adapted to extend into said slot; or, the small inclination face is divided by a cam arranged on the locking dog, on which the large inclination face (131a) is arranged, which cam is adapted to extend into a slot in the actuation sleeve.Type: ApplicationFiled: January 7, 2011Publication date: November 15, 2012Applicant: Aker Subsea ASInventor: Jarmo Kekarainen