Patents Assigned to I-TEC AS
  • Patent number: 8978765
    Abstract: A valve system for providing fluid flow through radial openings disposed along an axial length of a tubular. The tubular comprises at least one valve group containing at least two valves operable by one drop ball. An inset 302 e.g. of standard grade steel provided in a harder liner 301 in the opening provides an intermediate small opening for at least the time required to open all the remaining valves in the group. The small opening limits the pressure drop over the valve. When all valves are open, the insets 302 are eroded away by an abrasive material, e.g. a slurry used for hydraulic fracturing, and permanent full openings are created.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: March 17, 2015
    Assignee: I-Tec AS
    Inventors: Kristoffer Braekke, Geir Lunde, Roger Antonsen
  • Patent number: 8960277
    Abstract: A packer for sealing against an inner cylindrical mandrel and a wellbore wall.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: February 24, 2015
    Assignee: I-TEC AS
    Inventors: Kristoffer Braekke, Bård-Einar Angell, Melanie Seguin
  • Patent number: 8950478
    Abstract: Two well tools (100, 200) having centrally mounted drive shafts (160, 260) are provided with a mechanism to remove debris from a coupling between them. Thereafter, the tools can be coupled by inserting a first outer sleeve (110) on the first tool into and rotationally lock it to a second outer sleeve (210) on the second tool. The drive shafts (160, 260) are coupled in a similar manner. The mechanism for removing debris can displace the debris and/or a flushing device (170) using well fluid to stir up debris. The coupling has space for debris that is not removed, e.g. in the form of a chamber 264. The female part of the coupling may comprise a spring loaded lid (271) to reduce pollution by debris when the coupling is not in use.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: February 10, 2015
    Assignee: I-Tec AS
    Inventor: Kristoffer Brække
  • Publication number: 20140352970
    Abstract: A trigger mechanism for a ball activated device comprises a seat sleeve with seat defining members forming a fluid seal between the ball and the seat in an initial state and allowing the ball to pass through the seat in a final state. An alternating member can move radially in an aperture through an inner sleeve and abuts an outer surface on the seat sleeve in the initial state, is received in a recess on the seat sleeve in an intermediate state, and is received in a groove in the outer sleeve in the final state. A protective sleeve may extend axially from the seat sleeve over a seat receiving area. The mechanism is suitable for cementing and fracturing as particles cannot penetrate to its moving parts.
    Type: Application
    Filed: October 28, 2013
    Publication date: December 4, 2014
    Applicant: i-Tec AS
    Inventor: Braekke Kristoffer
  • Patent number: 8776888
    Abstract: The present invention provides a robust, durable and reliable cylindrical valve having closable, radially extending openings for use in cementing, injection, including hydraulic fracturing, and production in wells having high pressures and large pressure differences. The valve may comprise scraping rings in order to remove deposits and the like when it is to be closed after use. Magnets or other suitable means indicates whether the valve is in an open or closed position.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: July 15, 2014
    Assignee: I-Tec AS
    Inventor: Kristoffer Braekke
  • Patent number: 8418756
    Abstract: A well plug having a flexible expandable sealing (330) and a metallic anchor (350) which can be moved radially out or in by rotating a leadscrew (170) in opposite directions. The well plug has a ball valve in a central longitudinal passage, which is kept open whenever the leadscrew (160) rotates. This increases the accuracy when setting the plug, and reduces the risk for the plug moving uncontrolled in the well bore during setting or retrieval. The ball valve can be opened or closed by rotating a transmitting shaft (120, 140) within an angle of free motion, before the leadscrew is pulled along in the rotation. A ball valve for high pressure applications is also shown.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: April 16, 2013
    Assignee: I-TEC AS
    Inventor: Kristoffer Brække
  • Patent number: 8403035
    Abstract: A sealing and/or anchoring element for use in pipelines. The sealing and/or anchoring element includes at least one helical element disposed around a string section, with the helical element being configured so as to be able to expand radially towards an inner wall of the pipeline as the circumferential diameter thereof is increased.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: March 26, 2013
    Assignee: I-Tec AS
    Inventors: Frank Akselberg, Per Olav Haughom
  • Publication number: 20120298349
    Abstract: A packer for sealing against an inner cylindrical mandrel and a wellbore wall.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 29, 2012
    Applicant: I-TEC AS
    Inventors: Kristoffer Braekke, Bård-Einar Angell, Melanie Seguin
  • Patent number: 8215401
    Abstract: Apparatus for a drop ball activated device, where a ball seat is concentrically and axially slidably disposed within an outer sleeve having a first internal cylindrical surface, wherein the ball seat comprises at least one radially extending lug, which in a first position extends radially inwards from the internal cylindrical surface, thereby defining a first ball seat diameter less than the diameter of the drop ball. The sleeve comprises at least one groove in its internal surface, and the lug may be received in the groove, thereby defining a second ball seat diameter at least as large as the diameter of the drop ball.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: July 10, 2012
    Assignee: I-Tec AS
    Inventors: Kristoffer Braekke, Geir Lunde, Roger Antonsen
  • Publication number: 20120160515
    Abstract: A valve system for providing fluid flow through radial openings disposed along an axial length of a tubular. The tubular comprises at least one valve group containing at least two valves operable by one drop ball. An inset 302 e.g. of standard grade steel provided in a harder liner 301 in the opening provides an intermediate small opening for at least the time required to open all the remaining valves in the group. The small opening limits the pressure drop over the valve. When all valves are open, the insets 302 are eroded away by an abrasive material, e.g. a slurry used for hydraulic fracturing, and permanent full openings are created.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 28, 2012
    Applicant: I-TEC AS
    Inventors: Kristoffer Braekke, Geir Lunde, Roger Antonsen
  • Publication number: 20120145382
    Abstract: A valve system for providing fluid flow through radial openings disposed along an axial length of a tubular. The tubular comprises at least one valve group containing at least two valves operable by one drop ball. An inset 302 e.g. of standard grade steel provided in a harder liner 301 in the opening provides an intermediate small opening for at least the time required to open all the remaining valves in the group. The small opening limits the pressure drop over the valve. When all valves are open, the insets 302 are eroded away by an abrasive material, e.g. a slurry used for hydraulic fracturing, and permanent full openings are created.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 14, 2012
    Applicant: I-TEC AS
    Inventors: Kristoffer Braekke, Geir Lunde, Roger Antonsen
  • Publication number: 20110204273
    Abstract: The present invention provides a robust, durable and reliable cylindrical valve having closable, radially extending openings for use in cementing, injection, including hydraulic fracturing, and production in wells having high pressures and large pressure differences. The valve may comprise scraping rings in order to remove deposits and the like when it is to be closed after use. Magnets or other suitable means indicates whether the valve is in an open or closed position.
    Type: Application
    Filed: August 25, 2009
    Publication date: August 25, 2011
    Applicant: I-TEC AS
    Inventor: Kristoffer Braekke
  • Publication number: 20110198100
    Abstract: Apparatus for a drop ball activated device, where a ball seat is concentrically and axially slidably disposed within an outer sleeve having a first internal cylindrical surface, wherein the ball seat comprises at least one radially extending lug, which in a first position extends radially inwards from the internal cylindrical surface, thereby defining a first ball seat diameter less than the diameter of the drop ball. The sleeve comprises at least one groove in its internal surface, and the lug may be received in the groove, thereby defining a second ball seat diameter at least as large as the diameter of the drop ball.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 18, 2011
    Applicant: I-TEC AS
    Inventors: Kristoffer Braekke, Geir Lunde, Roger Antonsen
  • Patent number: 7954567
    Abstract: An adjustable centering tool for use in pipes of varying inner diameter. The centering tool being provided with a number of identical and steplessly adjustable, radially protruding wings having guiding lugs and chamfered end faces. The wings, having been set, are retained by an upper lock mandrel with a safety pin and a lower lock mandrel with a safety nut. The outer circumference of a cylindrical tool body is fitted with longitudinal grooves having sloped terminations cooperating with the wing dimensions, the chamfered end faces of the wings, and the guiding lugs.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: June 7, 2011
    Assignee: I-Tec AS
    Inventor: Per Olav Haughom
  • Patent number: 7618211
    Abstract: A manual locking assembly for a quick connect coupling includes a cylindrical male pin, a cylindrical sleeve-shaped female part, a rotatable key bolt, a locking bolt retainer, and a spring. The rotatable key bolt is axially arranged and central within the cylindrical sleeve-shaped female part, and has a quadrilateral locking block, a cylindrical guiding flange, and a cylindrical locking bolt having millings on opposite sides. The locking bolt retainer has a cylindrical body including a transversal hole having a radius that corresponds with an outer radius of the cylindrical locking bolt and a groove extending from the transversal hole that corresponds to the millings on the cylindrical locking bolt, a lower flange on a first side of the cylindrical body, and an upper flange located on a second side of the cylindrical body opposite to the first side, the upper flange having an inclined surface on an upper side of the upper flange.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: November 17, 2009
    Assignee: I-TEC AS
    Inventor: John Robert Loxley Wood